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Содержание 01

Страница 1: ...ce and Adjustments Inued To Bronch Office Chic agQ S o u th DepartMent E T Gus to me r Eng Address Chicago 20 Illinois If this Manual is lost or mislaid please return to above addre INTERNATIONAL BUSI...

Страница 2: ...ING REFERENCE MANUAL CONTENTS Poge Impression and Type Alignment 1 Paper Feed 3 Carriage Return 3 Motor 5 Noise 5 Shift 6 Tabulation 7 Back Space 8 Space Bar 9 INTERNATIONAL BUSINESS MACHINES CORPORAT...

Страница 3: ...Copyright 1953 by INTERNATIONAL BUSINESS MACHINES CORP 590 Madison Avenue New York 22 N Y Printed in USA October 1954 Form 25 6021 1...

Страница 4: ...nder out of adjustment Dirty or glazed power roll Power roIl may need to be replaced Cam serrations worn at the knockout position Re place cam Loose rubber on power roIl Improper cam clearance Dirt in...

Страница 5: ...and cylinder adjustment Form card holder or install offset card holder TYPE CUTTING Check power roll speed Impression indicator set too high Platen too hard Check ring and cylinder adjustment Type may...

Страница 6: ...Platen loose at platen yokes Feed roll side play Feed roll bind lack of grease or bent deflectors Hard feed rolls Hard platen Dirty feed rolls or platen Bail springs Plastic back carbon PAPER ROLLBACK...

Страница 7: ...ent Improper latch adjustment CARRIAGE LOCKS TOGGLE TYPE Clutch toggle stop allowing toggle to go too far over center Increase tension on hairpin spring on toggle knock out lever Toggle linkage adjust...

Страница 8: ...r cover CARRIAGE END COVERS VIBRATE Reform spring clips PAPER TABLE VIBRATES Reset positioning collars NOISY PAPER BAIL Check for broken paper bail spring Reposition bail rolls on shaft NOISY DRIVE Ch...

Страница 9: ...igh or too low Binds in basket or shift mechanism Excessive or uneven pin clearance Broken hairpin spring Keybutton binding FAILS TO SHIFT Check cam adjustment Improper pin clearance Pusher too high o...

Страница 10: ...ment T b lever not being pulled far enough to latch Linkage too long Improper latch adjustment Improper latch stop adjustment Tab lever binding on margin rack Bind in tab lever fulcrum Improper tab ra...

Страница 11: ...rebound Check lever holding tab stop too tightly Improper latch adjustment not allowing tab lever to unlatch Friction governor too tight not allowing the tab lever to knock off Rebound check lever to...

Страница 12: ...Bind in cam Space bar binding on cover Improper stop bracket adjustment Improper cam link adjustment Spring on escapement lever plate loose or stretched Improper escapement link adjustment REPEATING...

Страница 13: ...3 Power Frame Removal 4 Gear Drive and Power Roll 5 Key Levers 6 Cams 7 Type Bars 8 Bell Cranks 10 Escapement 11 Space Bar Mechanism 14 Carriage and Rails 15 Paper Feed 17 Shift Mechanism 18 Carriage...

Страница 14: ...Copyright 1955 by International Business Machines Corp 590 Madison Avenue New York 22 New York Printed in U S A February 1955 Form 25 6619 0...

Страница 15: ...her types with an IBM motor it may be neces sary to drill holes in the machine base to accomodate the mounting bracket screws Use template 9522944 to locate these holes When selecting motors for repla...

Страница 16: ...the power on or off and through a locking bar keeps the keys from being depressed when the switch is off Poor electrical contact may often be traced to a weak or broken switch spring which can be repl...

Страница 17: ...reverse springs and ribbon 14 Remove front and rear cover plates 15 Remove three remaining power frame screws 16 Swing power frame part way out of base Avoid bend ing the pin on the left hand end of...

Страница 18: ...end play Too tight a power roll adjustment will overload the motor If the power roll runs out or wobbles after it has been replaced turn it around Ih revolution KEY LEVERS Key levers control the diff...

Страница 19: ...cam release lever keeps the cam from repeating when a key lever is held down Removal Loosen the three screws which hold the cam bearing clamp plate in place Using an auxiliary bearing wire push the ca...

Страница 20: ...parts of the type face will strike squarely To insure a clean even impression the type bar is designed and adjusted to strike the anvil or ring just before the type face sfrikes the paper The type bar...

Страница 21: ...cam may be adjusted too close to the power roll 2 There may be a bind in the toggle levers 3 If the bars on one side of the segment are not locking change the number of brass shims between the seg me...

Страница 22: ...BELL CRANKS may be removed without removing the power frame as follows 1 Drill a hole in each side of the machine base frame with drill 21 after using template 9004820 to locate the proper positions T...

Страница 23: ...ses two pawls operat ing in a rack having one tooth every two spaces As a type bar is driven toward the platen it pushes the universal bar the trip link and the bottom of the trip lever to the rear Th...

Страница 24: ...treme left Then move the segment down and to the left so that the assembly can be removed through the opening in the segment support Push down on the left hand type bars to give more clearance 7 Unscr...

Страница 25: ...pawl bracket when a type bar is held against the platen Figure 6 3 THE TRIPPING POINTS in upper and lower case should be within lfs of each other when tested with the same type bar If the upper case...

Страница 26: ...aracters The space bar key lever trips the cam which by means of a short link bell crank and an operating link pulls on the escapement lever plate This action causes the escapement lever to actuate th...

Страница 27: ...screw 3 From the bottom of the machine loosen two screws in the rail support eccentrics and tum the eccentrics so that the rails are foreed apart as far as possible 4 Move the carriage to the extreme...

Страница 28: ...yet permit perfect freedom of movement Figure 9 7 Move the carriage to the left and tighten the left side rear rail adjusting screw to just remove all play Adjust the right side screw with the carria...

Страница 29: ...on of the platen latch springs On carriages longer than 12 it may be necessary to form the feed roll lift arm on the feed roll actuating shaft to maintain equal pressure on all feed rolls The lift arm...

Страница 30: ...points of the feed roll actuating shaft when they appear dry SHIFT MECHANISM The shift mechanism on the left side of the machine is operated by a cam and shift head assembly consisting of a T shaped...

Страница 31: ...nd the shift toggle levers assembly Adjustments 1 T LEVER ECCENTRIC The eccentric on the T lever should be adjusted so that when the shift key lever is slowly depressed the T lever will safely engage...

Страница 32: ...st strip of paper be tween the type bar and the ring With the thumb in the same position again apply the same pressure and remove the test strip of paper At this time a heavy drag should be felt Follo...

Страница 33: ...pport so that the upper case characters will print on the same line as the lower case Figure 11 On the steel segment support adjust the locking nuts on the shift stop screws so that the lower case cha...

Страница 34: ...ket screws This will allow any twist in the toggle shaft to straighten out The segment support should then vibrate freely when struck Turn the loosened toggle bracket screws slowly and when it is felt...

Страница 35: ...h operating lever and causes pressure on the friction disc This pressure makes the clutch pulley turn and winds up the carriage return tape The first action of the carriage return tape is to pull down...

Страница 36: ...spring will be made easier by using long nose pliers When replacing the clutch parts make certain that the side KO lever is under the clutch operating lever before tightening mounting screws for the...

Страница 37: ...hat the lug on the cam release lever just drops behind the lug on the cam when the cam is tripped with the power off Figure 14 3 CLUTCH CLEARANCE By loosening the screw in the elongated slot of the cl...

Страница 38: ...will just touch the bottom of the angular plate of the tab lever when the tab lever is at rest Figure 18 To test this adjustment use a simultaneous operation of the carriage return and tab The tab lev...

Страница 39: ...in stop contacts the head of the tab lever an escapement pawl will click into the tooth of the escapement rack Observe this adjustment by slowly moving the carriage to the left hand margin from a posi...

Страница 40: ...Figure 21 13 LOWER INDEX PAWL STOP Loosen its lock nut ant move the stop so that it halts all downward movement of th line space mechanism when the detent roller is squarely positioned between two te...

Страница 41: ...learance 9 Excessive clutch plate clearance 10 Tab lever not in rest position CARRIAGE RETURNING TOO HARD Causes are the fol lowing 1 Clutch plate clearance too close 2 Spider spring adjusted too tigh...

Страница 42: ...it and hold the tab lever in the latched out position Tab lever extension parts contact an upright stud of the rebound check lever moving the rebound check lever to the rear The carriage begins to mo...

Страница 43: ...Be sure the leather stop of the tab bell crank is touching the underneath side of the key lever spring support when this adjustment is observed Figure 22 2 TAB LEVER HEIGHT Adjust height so that it w...

Страница 44: ...he lock nut Figure 24 5 TAB LATCH STOP Position the tab latch stop so that with the tab lever held toward the extreme left there will be a clearance of 005 to 010 between the left hand edge of the lat...

Страница 45: ...d check lever is adjusted by forming the support plate up or down Figure 26 9 TAB LEVER EXTENSION Form this extension so that at rest the engaging tip of the tab lever and the rear corner of the rebou...

Страница 46: ...corrected by forming the lower lug on the pawl release lever that contacts the pawls Figure 28 13 TAB OPERATING LINK Adjust so that when the cam is on its high point the tab lever will over throw the...

Страница 47: ...in the rear cover plate are elon gated for adjusting the set lever to strike squarely on the tab stops Adjust the tab set link so that when the tab set button is depressed it will push the stop down f...

Страница 48: ...of adjustment 5 The tab latch is not adjusted far enough to the rear to give full motion of the tab lever TAB REBOUNDING This condition occurs when the tab lever comes to rest less than two spaces pa...

Страница 49: ...ag when the tab lever is at rest Under these circumstances check the following 1 Worn teeth on the friction plate 2 Worn or rounded engaging surface of the governor pawl 3 Tab lever s failing to rest...

Страница 50: ...ack Further motion moves the pawl to the right which moves the carriage over one space At this time the backspace pawl hits the backspace pawl stop and halts any more motion to the right Fig ure 31 Th...

Страница 51: ...the rear spring hole of the backspace pawl This spring may remain attached during backspace pawl removal Adjustments 1 HEIGHT OF INTERLOCK The interlock mounting bracket must be formed up or down to o...

Страница 52: ...with Mil clearance Figure 35 4 BACKSPACE PAWL GUIDE LUG Adjust the backspace guide lug by forming left or right so that the backspace pawl enters the escapement rack with approximately Y64 clearance...

Страница 53: ...le in the intermediate bell crank will have a clear ance with the working side of the backspace link of J t Figure 39 7 CAM CLEARANCE Adjust cam clearance to the power roll so that the cam release lev...

Страница 54: ...achine and moves the ribbon feed pawl Simultaneously a ribbon check pawl keeps the ribbon spool from rotating As the mechanism restores the ribbon feed pawl restores toward the rear of the machine by...

Страница 55: ...te This position prevents ribbon lift when the control plate is moved It also determines the stencil position Pulling the button out as far a its stop will permit brings the roller farthest away from...

Страница 56: ...pool When operating a type bar by hand the feed pawl must stay bottomed in a tooth of the spool It should have a minimum motion of 1 teeth to insure a positive one tooth feed Use a left hand type bar...

Страница 57: ...n the supply side should not drag against the spool Select the type bar closest to the supply side hold it against the platen and rotate the supply spool If the feed pawl drags remove it and form a ra...

Страница 58: ...haracters will strike the ribbon t down from the top edge Figure 41 In machines below serial number 56770 this condition is obtained by moving the color control spring a small distance when it is enga...

Страница 59: ...pin should become lost Maintenance Use IBM ET oil to lubricate the pivot points of the ribbon feed levers the spring arm and reverse lever ribbon reverse bar the color control plate link and all other...

Страница 60: ...s Cams and Type Bars 3 Interlock Bar 4 Selection Mechanism 4 Escapement Mechanism 9 Carriage Release 13 Carriage Return 15 Tabulation 17 Detent Pawl Assembly 19 Backspace 20 Space Bars 22 Ribbon Feed...

Страница 61: ...Copyright 1955 by International Business Machines Corporation 590 Madison Avenue New York 22 N Y Printed in U S A Form 25 6672 0...

Страница 62: ...ons for further gear drive and power roll information KEY LEVERS CAMS AND TYPE BARS TYPE BARS should be adjusted heavier on ring than on cylinder for the best results Type bar slugs are soldered highe...

Страница 63: ...e cus tomer s approval Adjustment THE TWO INTERLOCK STO PS Figure 1 located on each end of the interlock bar are to be adjusted so that only one key lever at a time can be depressed easily Maintenance...

Страница 64: ...ed left or right Figure 3 Use the six inch screwdriver medium size or a similar tool as a follower to drop the desired selector bar Adjustment SELECTOR BAR FULCRUM SHAFT BRACKETS Figure 3 Move these b...

Страница 65: ...ises SELECTION BAil ASSEMBLIES These assemblies transmit the motion from the selector bars to the escapement operating levers From front to rear the bails provide four two and three units of escape me...

Страница 66: ...bail control rod in the non expand position Adjust the bail control rod stop Figure 3 located on the key lever spring support plate so that the four unit bail is directly over the pointed projection o...

Страница 67: ...assembly Figure 4 Removal Unhook the escapement pawl carrier springs and the escapement operating lever links Back off the upper pawl carrier pivot screw and remove the pawl carrier assembly which inc...

Страница 68: ...screws from the right ends of both rails and loosen the left rail screws This procedure allows the carriage and rails assembly to be lifted up so that the escapement wheel shaft may be pushed forward...

Страница 69: ...CAPEMENT RACK Removal Remove the four escapement rack screws and back off the adjustment screws until they are flush with the bottom of the carriage Pry out the escapement rack dowel from the left end...

Страница 70: ...ENT TRIP LINK transmits motion from the type bar universal to the escapement trip lever and slide assembly Figure 4 THE ESCAPEMENT TRIP LEVER and slide assembly trans mits motion from the trip link to...

Страница 71: ...s its escapement pawl is removed from the escapement wheel Figure 5 When a type bar is raised by hand the edge of the inclined plane on the bottom of the pawl carrier engages the escapement wheel and...

Страница 72: ...r missing springs on the pawl carrier assemblies LUBRICATION Oil sparingly the pivot points of the pawl carrier assemblies and the escapement pawls CARRIAGE RELEASE Any carriage release operation whet...

Страница 73: ...heels permit a clear view of the engage ment of the carriage release pawl into the release ratchet 2 THE RELEASE PAWL BRACKET NUTS should be loos ened just enough to tap the bracket into position Figu...

Страница 74: ...a toggle knockout lever This lever moves the carriage retum pawl release link which pushes the carriage release pawl lever Figure 8 This condition causes carriage release as de scribed in Carriage Re...

Страница 75: ...n form the TKO link 4 THE MARGIN RACK must be adjusted after the tab rack is correctly located Tabulation Adjustments Tabu late to any stop and run the left hand margin stop to the right as far as it...

Страница 76: ...ort springs mounted on the left end of the tab lever raises the tab lever into the path of the tab stops Figure 9 The tab lever operating arm also actuates the pawl release operating lever which throu...

Страница 77: ...d by moving the adjustable bracket up or down to obtain J 6 clearance be tween the tip of the tab lever and the bottom of the tab rack with the tab lever in the latched position Figure 9 4 LATCHING LI...

Страница 78: ...on the escapement pinion ratchet wheel as sembly Use the hole in the rear frame next to the motor when adjusting or removing the governor bracket Maintenance IRREGULAR TABULATION may be caused by the...

Страница 79: ...th on the carriage return ratchet Position the detent pawl bracket to obtain this adjustment Figure 10 Maintenance LUBRICATION Oil the detent pawl BACKSPACE The backspace assembly is attached to the e...

Страница 80: ...place a dental mirror between the rails and inside the right hand rail sup port 3 BACKSPACE OPERATING LINK is adjusted when the cam and backspace assembly are at rest The right hand arm containing th...

Страница 81: ...ment trip levers RIBBON FEED This mechanism is designed for the use of a carbon ribbon 2 wide The ribbon feed mechanism operates when the escapement mechanism allows the carriage to move thus giving p...

Страница 82: ...positioning edge is centered between the two H s in the middle group PLATENS The platen usually used is a No 8 with a 29 tooth ratchet There are only four type styles Modem Secretarial Docu mentary a...

Страница 83: ...and its link 9 Remove the motor and worm housing 10 Disconnect the tab operating unlatching trip and unlatching links 11 Disconnect the backspace operating link 12 Remove the escapement trip link 13 R...

Страница 84: ...rd Models Inspection Page 1 Preventive Maintenance and the Operator 4 Mountlng Machines 5 Motor and Belt Drive Keyboard Cam and Type Bar Preparation for Alignment Alignment Impression 6 8 10 11 12 15...

Страница 85: ...Copyright 1952 by INTERNATIONAL BUSINESS MACHINES CORPORATION 590 Madison Avenue New York 22 N Y Printed in U S A December 1952 Form 25 6015 1...

Страница 86: ...ible particles of dirt Rubber parts should be cleaned during each inspection with cleaning fluid The cams may be wiped with cleaning fluid provided care is used to avoid excess EXAMINE FUNCTIONS AND C...

Страница 87: ...hould be made with a series of i s typed alternately with back space operations iiiiiiiii at the left center and right of the carriage On longer than 12 inch Executive carriages a test should be made...

Страница 88: ...tion If the machine is equipped with any special features such as a special purpose platen special type repeating cams etc a check should be made of these features LUBRICATION Lightly lubricate all mo...

Страница 89: ...t overprinting Bail rolls should ride the margins and should be kept clean THE MULTIPLE COpy LEVER should be kept forward nor mally and moved back only when added copies result in smeared capital lett...

Страница 90: ...d reaching down through the mounting holes in the side frames Mounting bolts are 1 4 x 20 and may be pur chased locally in any length POSITIONING PINS may require the use of a carriage roller as a spa...

Страница 91: ...the starting winding to create a leading current so a starting torque will be placed on the rotor I1haft If the condenser fails or if a break developll anywhere in the starting winding circuit the mo...

Страница 92: ...ose of the other typewriter motors Governor Motor fuse Hold r Fi4ure 5 DC Governor Controlled Motor Installation A POLARITY CHANGE SWITCH for DC governor controlled motors is installed as a measure of...

Страница 93: ...side away from the bearing Test the power roll for freedom of operation POWER ROLL RUBBER must be tight to its core and not run eccentric KEYBOARD Preventive Maintenance All Models KEY BUTTONS should...

Страница 94: ...h screwdriver to raise lug and increase clearance Figure 7 Adjustable Key Lever Individual key levers which do not respond with the rest of the key levers must be formed or peened up or down to secure...

Страница 95: ...VER BEARING SUPPORT should be replaced if cam trip lever springs show signs of rubbing on adjacent cam levers REPEATING LETTER CAMS that wear the power roll ex cessively can be treated by dressing dow...

Страница 96: ...lock bar Preparation for Alignment 1 Check power roll speed for 95 1 feet per minute for Standard and Executive models 103 1 feet per minute for Lift Platen models 2 Set the impression indicator on 5...

Страница 97: ...pplicatio of 3 prong Ph rs _ I r I f Fj ure 10 Type Bar Bent Fi ure 11 Application of Two at the Throat TypeAJi nin Wrenches 3 Twist the type bar with aligning wrenches so it strikes evenly on both si...

Страница 98: ...to avoid loosening the soldered type slug Place cutter jaws on slug 1 32 behind the type face and cut Cutters should have been adjusted to prevent their closing to less than 1 16 END TYPE BAR ALIGNMEN...

Страница 99: ...a little at a time and must be checked after each forming to in sure that the type bar enters the guide properly Fi ure 17 Type Bar Bindin in Guide If the type bar has a tendency to bind in the guide...

Страница 100: ...ia No 1 The TYPE BAR LINKS must be free enough at rest to be moved from side to side in both upper and lower case The TYPE BAR SEGMENT SLOTS must be clean and free from burrs or dirt or binds The TYPE...

Страница 101: ...h No 1 position qa2zws3x etc QA ZWS X etc 5 Remove the paper place the typewriter on its back and study the original sheet Turn out any impres sion screws for light striking type faces and turn in the...

Страница 102: ...ce type bars in position as illustrated loosen hexagonal screw and the universal bar will assume its proper position Tighten the screw and test for an equal tripping point TRIP LINK must be adjusted t...

Страница 103: ...PE REST should be regarded when the operator cleans type Rough harsh treatment might possibly deform the curvature of the type rest and in duce a change in cam clearance Adjustments All Models SHIM WA...

Страница 104: ...f the re lease lever lug width when tripped with the power off 4 LINK BRACKETS should be adjusted by means of the toggle bracket screws until the clearance between the pusher and either pin on the tog...

Страница 105: ...ll Models FiAure 22 CarriaAe Truck Star Wheels RAILS are to be adjusted by positioning the front rail tightly against the power frame and tightening the front rail screws The carriage should then be c...

Страница 106: ...Ibs carriage 2 Ibs at start 2 3 4 Ibs carriage 2 Ibs at start 3 Ibs carriage 2 Ibs at start 3 1 4 lbs carriage 2 Ibs at start 3 1 4 lbs PAPER FEED Adjustments All Models maximum maximum maximum maxim...

Страница 107: ...ernating irregularly with an appearance of the same type being low and light due to the platen shifting back an forth from front to rear If the screws are found to be loose or if there is play between...

Страница 108: ...the platen so it will not rotate Test the outer rear rolls of each deflector Two pounds plus or minus 1 4 should be required to withdraw the paper strip Pressure must be equal on all deflectors of 16...

Страница 109: ...d with a sheet of paper in place adjust the eccentric nuts on the rear comers of the carriage until the platen has equal and correct ring and cylinder adjustment on both ends of carriage travel To tes...

Страница 110: ...haft to be restored to its normal straight posi tion and tighten the center support screws Replace the springs beneath the actuating arms replace the deflectors and platen and check the paper clearanc...

Страница 111: ...ng this movement hold the front scale down If only one deflector has side movement or if both deflectors move toward the center interchange deflectors The best condition prevails when both deflectors...

Страница 112: ...d The next typing done will fall slightly below the writing line This condition may be rectified in either of two ways With a screw driver inserted down between the rear feed roll and the deflector pr...

Страница 113: ...power off The cam release lever lug may rest on the rear half of the cam lug CAM RELEASE LINK should be adjusted so that the cam will be released when the key has completed two thirds of its downward...

Страница 114: ...Stop To Intermediate I Lever Toggle link L __ E TO ggle lever Figure 30 Clutch Toggle 8ell Crank Elongated Hoi Rear link to Clutch Knockout lever Clutch latch link Figure 31 Side Knockout Link Adjustm...

Страница 115: ...sufficient to cause a bind TIP OF THE CLUTCH KNOCKOUT LEVER is designed to prevent locking of the carriage during simultaneous opera tion of the carriage return and tabular mechanism The tip of the k...

Страница 116: ...h the clutch locked Figure 34 The high point of the eccentric nut must be kept in the front half of its orbit lock Retaining Bolt _ cl 1lIIil1lmKl oH 1 r U 7 Plote With the Clutch Plote pressed square...

Страница 117: ...r the clutch until the car riage will just make a 1 1 2 return with the line space lever to the rear Figure 35 Adjustments Latch Type Clutch Standard Models THE LATCH SPRING is required to actuate the...

Страница 118: ...e clutch bell crank will be parallel with the rear rail 5 ADJUST THE LATCH ECCENTRIC NUT for a clearance of 005 to 015 between the latch and the clutch lever when the cam is on its high point The high...

Страница 119: ...le clevis on the clutch knockout lever link 8 ADJUST THE PAWL RELEASE LEVER ECCENTRIC so when the clutch is latched the escapement pawl will clear the rack by 1 64 The high point of the eccentric shou...

Страница 120: ...e line space lever to the rear Adjustments Single Link Clutch Standard Models The single link roller latch clutch Figure 39 is a modification of the standard latch type clutch which simplifies adjustm...

Страница 121: ...clutch is latched If the engagement is too deep to permit positive unlatching action shorten the latch link slightly at the rear clevis If on the other hand the engagement of the latch is too shallow...

Страница 122: ...he escapement pawl will click into the escapement rack at the instant of contact Figure 36 9 SPRING PRESSURE should be adjusted just sufficiently to insure a 1 1 2 return with the line space lever set...

Страница 123: ...tant when the ratchet has positioned itself securely on the detent roller with no play forward or backward Proper line spacing depends very largely on proper paper feed After having checked the adjust...

Страница 124: ...2L____ 50 0 002 O2 1076886 1012729 1002285 1002256 56 50 9 34 0 25 5 1002 02 1076884 1002257 57 51 8 34 6 25 9 1002 02 1076884 1002258 58 52 8 35 2 26 4 1002 02 1076886 1002259 59 53 7 35 8 26 8 1002...

Страница 125: ...ports the interlock lever in such a manner that aU clearances are very close Figure 41 shows how the brac ket may be pried in one direction with a screwdriver to close the clearance between the lug on...

Страница 126: ...g the Height of the Interlock THE HEIGHT OF THE INTERLOCK LEVER may be ad justed Figure 43 to keep the interlock as low as possible and not actually touch on the back space pawl The back space pawl wi...

Страница 127: ...as completed two thirds of its downward travel Back Space Pawl Guide Lug bl Place screwdriver here to move lug to left Figure 45 Back Space Pawl Guide Lug ADJUST THE BACK SPACE PAWL GUIDE LUG Figure 4...

Страница 128: ...pace link and the hole in the bell crank on the rear rail THE BACK SPACE STOP must also be set so that with the interlock lever actuated the back space pawl will clear the stop by 1 32 when the pawl i...

Страница 129: ...k Tabular Mechanism TO ADJUST THE CAM first adjust the cam stop so that when the cam is released with the power off the cam lug will just drop behind the rear lug of the release lever With the single...

Страница 130: ...ntric stud on which the tab actuating lever rests Tab lever Tab Rack Tab Stap Tab lever should be operated manua toward the rear to check above odj ment Figure 50 Tab Rack Lateral Adjustment CLEARANCE...

Страница 131: ...LATCH should be adjusted Figure 51 so that the engaging end of the tab lever will overlap the tab stop when set by 1 2 to 2 3 of the distance between the forward edge of the tab stop and the front fac...

Страница 132: ...mounted so that with the high side of the eccentric toward the rear of the machine the left end of the rebound check lever will spring into the checking position with a maximum of 010 clearance betwee...

Страница 133: ...should be so formed as to per mit the engaging tip of the tab lever and the tip of the rebound check to lie in the same plane at rest Maintain the leaf spring adjustment as the tab lever extension is...

Страница 134: ...om the escapement rack during tabulation Figure 57 THE LINK ON THE LEFT HAND END OF THE TAB LEVER should be adjusted so that when the cam is on its high point the tab lever will just clear the front f...

Страница 135: ...ng drum until excessive shock has been eliminated The tab lever should dependably unlatch when tabulating from a point ten spaces to the left of the last tab stop THE TAB SET BRACKET should be formed...

Страница 136: ...n tenance RIBBON GUIDES must be smooth and properly aligned to permit free movement of the ribbon Adjustments All Models 1 THE RIBBON FEED CAM should be set to clear the power roll just enough to perm...

Страница 137: ...to its high point the feed pawl should feed two teeth plus enough to engage the check pawl safely 6 THE REVERSING LATCH SPRING LINKS should be so adjusted that with the reversing levers at rest in the...

Страница 138: ...f the ribbon The color control button should then be moved to its highest or RED posi tion and the rear lug on the positioning plate should be formed so the underscore will strike the ribbon 1 32 abov...

Страница 139: ...ly or too straight by the high position of the stop which will tend to bind the mechanism This condition may be relieved by forming the front lug on the positioning plate toward the rear of the machin...

Страница 140: ...Levers Letter Cams Type Bars 5 Escapement 10 Margin Set 13 Margin Release 14 Line Lock 16 Carriage and Rails 17 Paper Feed 23 Space Bar 29 Shift 32 Tabulation 34 Carriage Return and Line Space 43 Bac...

Страница 141: ...COPYRIGHT 1957 INTERNATIONAL BUSINESS MACHINES CORP 590 Madison Avenue New York 22 New York Printed in U S A April 1957 Form 25 6170 2...

Страница 142: ...s connections Figure 1 Motor and Drive RING MOUNTED MOTOR This change occurred on ma chines above serial number 391 522 for Standard Models and 127 935 for Executive Models To remove this motor the re...

Страница 143: ...ng reassembly It will be noted that the right end of the power roll shaft is chamfered for easy insertion into the clutch disc slot 3 Remove the driven belt from the power roll drive pulley 4 Loosen t...

Страница 144: ...per minute and the IS tooth step provides 103 feet per minute The motor pulley should be positioned on the motor shaft to align the belts and the pulleys Figure 1 6 DRIVE BELT Place this on the IS too...

Страница 145: ...m the bottom of the machine against the bottom of the button Be careful to avoid damaging the key plate or the button 8 The rubber may be removed from the front guide comb and a repeat plunger and spr...

Страница 146: ...d from the machine Fulcrum Figure 5 Type Bar Removal LETTER CAMS 1 Remove the front case 2 Remove the power roll 3 Remove the type bar of the cam lever to be removed 4 Loosen the screw that holds the...

Страница 147: ...e power roll Move the cam lever bearing support to allow the letter cams to just rest on the three cards Tighten the screws in the cam bearing support Withdraw the three cards and check the clearance...

Страница 148: ...hat for field installation a two piece key lever be used for any letter key position Installing a one piece key lever in the field requires too much time this should be done only at the factory The re...

Страница 149: ...31 for executives the step in the key lever lug was increased to allow the cam to repeat as the key lever bottomed in the guide comb thereby eliminating the necessity for adjustment of the stop in the...

Страница 150: ...bar from the segment and remove it up through the rails ESCAPEMENT PAWL ASSEMBLY 1 Remove the rear cover and paper table 2 Remove the spring connecting the intermediate pawl release lever to the hex h...

Страница 151: ...easure carriage ten sion in the following manner Pull the carriage at a slow and steady rate from the extreme left position to the extreme right position excluding air cylinder range Ten sion shall be...

Страница 152: ...bars trip too late or early in relation to the end type bars the support of the universal bar may be formed slightly up or down to correct this condition 3 ADJUSTING PLATE ON UNIVERSAL BAR Position t...

Страница 153: ...margin set lever will just clear the top of either margin stop when all parts are at rest Figure 11 4 MARGIN SET KEY LEVER INTERLOCK shall operate the key lever locking bar so as to prevent operation...

Страница 154: ...r is fully depressed the margin control lever will safely clear the bottom of the margin stop Figure 13 The push rod clevis may be spot welded to the push rod In this case enough motion for margin rel...

Страница 155: ...is approximately 90 Fig ure 14 2 LINE LOCK PUSH ROD Adjust in the following man ner Figure 14 a Unhook the push rod b Position the carriage at the right margin c Push the switch lever far enough to t...

Страница 156: ...ils have teeth throughout their entire length permitting over travel of the star wheels Because of an interference between the tab lever assembly and the left hand carriage end plate the carriage cann...

Страница 157: ...MODEL 81 CUSTOMER ENGINEERING TWELVE INCH CARRIAGE SIXTEEN INCH CARRIAGE I TWENTY INCH CARRIAGE Fi jure 15 Insertion of Carria je Trucks 18...

Страница 158: ...these trucks until the star wheel pins are even with the left end of the rails Place the right hand set of trucks so that there is a clearance of two teeth between them and the left hand set of trucks...

Страница 159: ...ease the detent roller spring and unhook the car riage return tape from the indexing assembly 5 On machines which have no carriage side frame eccen tric nuts a spring connects the inner carriage to a...

Страница 160: ...and lock it in place against the power frame 2 RAIL SUPPORT ECCENTRICS Adjust when the car riage is centered on the rails to just eliminate front to rear motion of the carriage Figure 18 3 REAR RAIL...

Страница 161: ...arriage bed Figure 19 Loosen the rear screw in each platen retaining plate Figure 20 Rotate the eccen tric nuts in the platen adjusting plates Margin Rock Center Support Feed Roll Release Com Shaft Pl...

Страница 162: ...6 CARRIAGE SIDE FRAME ECCENTRICS Rotate these until their high points are at the top These eccentrics occur on the early Model B s only Figure 20 Ring and Cylinder Adjustment PAPER FEED Removal THE FE...

Страница 163: ...the pressure levers Adjustments I THE LINE GAGE CARD HOLDERS should be adjusted two ways a Up or down so when viewed from the operator s posi tion a thin line of white shall be visible between the fee...

Страница 164: ...chines with a carriage length of more than 12 inches the eccentric collar that positions the front paper scale can interfere with the front feed rolls during feed roll release To prevent this keep the...

Страница 165: ...the rear feed rolls and the platen the front feed rolls should have a slight amount of drag If five IBM cards are inserted the front feed rolls should be free to tum Too much clearance at the front f...

Страница 166: ...tment should be made with the platen in the typewriter and the deflectors removed d Adjust the adjusting plates as set forth in this section e Check front feed roll pressure to insure that the 22 24 o...

Страница 167: ...pair of feed rolls is equal d Crown grind the rear feed rolls by removing rubber from both ends of the feed rolls leaving an unground portion in the center approximately l S to 1 4 in width e Raise th...

Страница 168: ...k out bar springs from the typewriter side frames and remove the knockout bar from the bottom of the machine 3 Remove the impression control shaft by removing the two screws which hold the bearing to...

Страница 169: ...ao s CIl tl III b l III f I Escapement lever Plate Adjustable Stop Screw o C m n c J o m m Z Q Z m m...

Страница 170: ...NK Adjust this so that the cam will repeat when the spring loaded plunger in the front guide comb is depressed approximately 1 16 Cam Released Release Lever resting on rear of the cam Lug Figure 25 Sp...

Страница 171: ...e The lock nuts should rest on the upper stop washers with equal pressure Figure 26 3 CAM CLEARANCE is observed by tripping the cam with the power off and noting that the cam release lever lug comes t...

Страница 172: ...e of the upper arm of the pusher strikes slightly above the upper pin when the cam is released Turn the power on and slowly depress the key lever to observe this adjustment Let the key lever slowly re...

Страница 173: ...ressed position shall lock freely and unlock easily using either shift button TAB LEVER TABULATION Removal 1 Remove the paper table and the carriage end covers It is not necessary to remove the rear t...

Страница 174: ...VER MOUNTING BRACKET 1 Remove the rear cover and paper table 2 Disconnect the tab operating link and the vertical line lock bellcrank link 3 By rotating the upper line lock bellcrank to get clearance...

Страница 175: ...te on tab stops at both ends of the tab rack When tightening the adjusting nuts main tain the front face of any set tab stop parallel to the tip of the tab check lever Figure 31 and at the same time b...

Страница 176: ...stments 6 TAB OPERATING LINK Adjust this so that with the cam on its high point there is 010 to 015 clearance be tween the tab latch and the tab latch keeper Figure 33 Tab latch Keeper Rebound Check L...

Страница 177: ...tandard machine Because of differences in adjustments the V slot type will be covered first followed by the former style Tob Check Lever Rebound Check lever Bracket Fi Jure 34 Tab Rebound Check Lever...

Страница 178: ...Rebound Check lever Bracket Fi ure 35 Rebound Check Adjustment Former Style 8b FORMER STYLE REBOUND CHECK LEVER a The rebound check bracket is adjusted two ways Position the bracket left or right so t...

Страница 179: ...er is latched the governor pawl will en gage the friction plate by the thickness of its own metal Figure 36 10 FRICTION GOVERNOR PRESSURE Adjust this by means of the two lock nuts on the hub of the ma...

Страница 180: ...o 005 end play in the shaft c Speed of the carriage on tabulation is adjusted by moving the governor arm spring Move the spring closer to the govenor arm pivots for more governor action move the sprin...

Страница 181: ...USTOMER ENG I NEE RI N G Tab Set Finger Set Tab Stop Tab Rack TwoSpac EW Tab Lever at Rest After Striking thit Set Tcib Stop Fi lure 38 Tab Set and Clear Bracket Adjustment Fi lure 39 Tab Set and Clea...

Страница 182: ...mately 1 32 Fig ure 39 13 TAB CLEAR LEVER STOP Form this so that when the tab stops are in the set position there will be a clear ance of approximately 1 32 between the rear projection of the set tab...

Страница 183: ...nwind slowly 5 The clutch pulley may then be removed from the power roll shaft 6 The clutch pulley spring may then be removed from its housing Note that the outer loop of the spring passes outside of...

Страница 184: ...s depressed from three fourths up to and includ ing its full normal travel Figure 42 When properly ad justed it will allow the cam to repeat when the key lever has depressed the spring loaded plunger...

Страница 185: ...Clutch Latching Clearance clutch lever bellcrank is parallel to the rear rail Figure 42 5 THE CLUTCH LATCH LINK is placed in the center hole of the clutch latch bellcrank With the clutch at rest with...

Страница 186: ...types One has an eccentric nut which acts as a pivot point and the other is riveted Tum the accentric so that its high point is down 8 INTERMEDIATE PAWL RELEASE LEVER UPRIGHT LUG Form this to allow t...

Страница 187: ...NTROL BELLCRANK ECCENTRIC STOP is an eccentric stud or washer In either case it is positioned so that the margin control lever has maximum motion left to right without restricting the movement of the...

Страница 188: ...re 46 a Tum the switch on and hold the carriage to prevent any movement b Depress the carriage return button and slowly let the carriage approach the left margin c The unlatching link should provide s...

Страница 189: ...is held firmly against the friction disc Figure 50 19 AIR CYLINDER Position this front or rear on the side frame to permit the plunger to move freely in the cylinder without binding Figure 51 20 AIR C...

Страница 190: ...nd Check Interlock Lever Clutch Lever Cluich Disc locknut Clutch Operating Arm With the Clutch Plat pressed squarely against the Clutch Disc there should be 005 015 Clutch Lever tIIH _ a clearance bet...

Страница 191: ...PAWL STOP is adjusted to stop the downward movement of the line space mechanism when the detent roller is positioned between two teeth on the platen ratchet Check this by pulling on the carriage retur...

Страница 192: ...4 30 9 23 2 1103605 52 47 3 31 5 23 7 1103606 52 47 3 23 7 15 8 1103611 53 48 2 32 1 24 1 1103606 54 49 1 24 6 16 4 1103611 110405S ____ ____________ 1103606 56 50 9 25 5 17 0 1103612 ______ R 2LL __...

Страница 193: ...space pawl Bawpace pawl dears rack and stop when backspace i operated will interlock Backspace interlock operated operated Figure 53 Backspace Interlock Bracket Adjustment Adjustments 1 BACKSPACE INTE...

Страница 194: ...4 3 BACKSPACE PAWL GUIDE LUG Form this to the left or right so as to guide the pawl into the escapement rack with about 1 64 clearance between the working side of a tooth on the pawl and the escapemen...

Страница 195: ...after tripping the backspace cam and rotating the power roll by hand Figure 56 The stop is also positioned far enough to the front of the machine so that the backspace pawl clears the stop by 1 32 wh...

Страница 196: ...nk 3 Remove the three mounting screws Then the ribbon feed plate can be removed RIBBON FEED CAM 1 Remove the left hand ribbon feed plate 2 From the bottom of the typewriter disconnect the cam release...

Страница 197: ...on the color control shaft 4 Remove the two screws mounting the mechanism to the power frame The mechanism may then be slipped to the right and out of the machine RIBBON LIFT GUIDE Remove the ribbon l...

Страница 198: ...ning of the power roll pulley Figure 58 2 CAM RELEASE LINK Adjust this so that the ribbon cam is released when any type face is 3 4 1 8 from the platen Figure 58 A variation in the tripping point betw...

Страница 199: ...the spool enough to allow the ribbon feed pawl to rest half way between two teeth Figure 60 Ribbon Check Pawl Adjustment 7 RIBBON SPOOL RETAINING SPRINGS Remove the ribbon feed plate Loosen the two sc...

Страница 200: ...tting Figure 61 Upper Lug of Position Plate Actuating Lever Ribbon lift Operating Link Figure 61 Ribbon Lift Mechanism 4 THE UPPER LUG on the positioning plate is formed so that the underscore prints...

Страница 201: ...and tum in the screws for cutting or heavy impression 5 Restrike the characters that have been altered and select any type that cannot be made strong enough to print a strong firm impression without c...

Страница 202: ...a type guide that is too far to the right nqnanznwnsnxnendncnrnfnvntngnbnynhnunjnmninknonlnpn This pattern shows that all of the left hand bars are being pulled downward by the guide while the right h...

Страница 203: ...fngnhninjnknlnmnonpnqnrnsntnunvnwnxnynzn NIIN N Y N N N N N N N N N N N N N n2n3n4nSn6n7n8n9nOn n1j n n n n nJ n AMARANTH SECEDES SASESUSOS URUGUAY ORONOCO INITIAL PHILADELPHIA amaranth secedes sasesu...

Страница 204: ...6 Centering of the type bar should be rechecked after every alignment operation 2 After the type bar is centered in the guide check the Application of 3 prong Pliers Figure 66 Three Prong Pliers on Ty...

Страница 205: ...s desired place the 8 6 bar benders low on the type bar Be careful not to burr the portion of the type bar which moves in the segment slot Figure 67 Moving Type Bar 011 Rin4 5 6 Bar Bender Figure 68 M...

Страница 206: ...raised or lowered to the writing line by using the S 6 bar benders By placing a bend toward the platen near the top of the bar the type may be lowered Figure 67 A bend away from the platen near the t...

Страница 207: ...s condition use the aligning wrenches as illustrated in Fig ure 75 This should correct the bind and result in the desired amount of raising or lowering of the type face This method will also apply to...

Страница 208: ...type bar thoroughly d Place the slug on the bar being sure that the type face is flush against the fixture and is lowered until the slug rests on the fixture e Heat and re solder This should locate t...

Страница 209: ...e slug and carefully pry the slug upward the required amount with a screwdriver To lower a slug use the same procedure but lock the fixture in place far enough below the slug to permit the slug to be...

Страница 210: ...ook 9 A 13 Large Pica Book 9 LP 25 Great Primer 9 BP 43 Large Bookface 9 LB 74 Manifold 9 9 H4 01 Pica 10 P 03 Pica Gothic SC 10 G 04 Pica Gothic DC 10 H 09 Pin Point Gothic 10 GP 12 Roman Book 10 D 1...

Страница 211: ...te 12 BE 31 Large Elite 12 LE 33 Miniature Gothic 12 MG 36 Dual Basic Gothic 12 DB 45 Elite Gothic Bold 12 FB 52 Alternate Gothic 12 AG 67 Diplomat 12 B2 72 Manifold 12 12 H2 76 Prestige Elite 12 SE 8...

Страница 212: ..._________________________________ 15 4argUl Release ________________________________ 16 Line Lock _____________________________________ 17 Carriage and Rails _____________________________ 18 Paper Fee...

Страница 213: ...1958 INTERNATIONAL BUSIN ESS MACHINES CORP 590 MADISON AVENUE NEW YORK 22 NEW YORK Printed 10 U S A 1958 Form 241 5002 0 J...

Страница 214: ...ratchet has been enclosed within the left hand carriage end cover RIBBON MECHANISM FABRIC i he fabric ribbon feed mechanism has been completely redesigned to provide cleaner faster ribbon changing an...

Страница 215: ...aterally the machine may be quickly and easily attached to or removed from the desk A removable bottom panel slides into the bottom case section and serves to protect the typewriter This panel can be...

Страница 216: ...lease lever and loosen the two end cover mounting screws TOP PAPER TABLE Pull the rear edie up and for ward Adjustments CASE and COVERS 1 KEYPLATE Adjust by forming the keyplate mounting brackets so t...

Страница 217: ...ain essentially the same in operation as the Model B machine Changes have been made in design to simplify removal and adjustment procedures and to conform to the new case design The motor is a new 3 d...

Страница 218: ...plete case and cover sections 2 Refer to Model BI Power Roll Removal Note The lower power roll bearing retainer screw is longer and serves also as a spring anchor for the ribbon mechanism Adjustments...

Страница 219: ...s adjustable in order to obtain proper keylever to trip lever clearance Figure 4 iJ CliP Pig 4 Ks llflflf Bstlring SSPPOrl Each row of keylevers has a different restoring spring color coded for easy i...

Страница 220: ...keylever position The letter cam has been reshaped for smoother operation and is not interchan J eable with previoua models Removal KEYLEVERS 1 Remove the typewriter from the base section 2 Remove th...

Страница 221: ...with pliers NOTE Do not form keylevers with T bender or hammer as damage to the keylever bearing support will result RESILIENT KEYBOARD CONTROL The resilient keyboard control located to the left of t...

Страница 222: ...odel B The pawl is the 058 motion pawl for 8 9 10 and 12 pitch ma chines and the 038 motion pawl for the 6 and 14 pitch decimal tab and lift platen typewriters The pawl and trip lever are no longer mo...

Страница 223: ...op of the car ria e tension tape on various lugs of the mainspring drum This adjustment may be checked through the follQwing steps A Position the carriage so that the tip of the tab check lever is dir...

Страница 224: ...Carriage 2 lbs l 4 0 lhs at start to 3 lbs maximum M Carriage 2 Ibs Yf 0 Ibs at start to a Ibs maximum 30 Carriage 3 Ib Y 0 Ibs at start to Ibs maximum 2 UNIVERSAL BAR Refer to Model Bit lI scape ment...

Страница 225: ...slide and front frame and screw into the repeat stop Figure 10 The re peat slide is spring loaded against the upper arm of the repeat stop During repeat operation the space bar stem moves the repeat s...

Страница 226: ...ravel of the space bar between the non repeat tripping point and the contact of the repeat slide is 015 to 025 Figure 10 5 OPERATING LINK Adjust to trip the escape ment pawl just before the high point...

Страница 227: ...ht on the rear rail so that the margin reset lever pin will center in the V groove of the margin stop S MARGIN STOPS The margin stops shall operate freely without excessive play and without binding MA...

Страница 228: ...E ECCENTRIC Adjust so that the margin control lever clears the underside of the margin rack by 010 to 015 Figure 12 LINE LOCK The line lock is essentially the same as on the previous model Figure 13 I...

Страница 229: ...the new case and cover section design and to increase machine flexibility Model C carriages are available in the following lengths 13 17 20 24 and 30 The margin and tab rack center support on carriage...

Страница 230: ...ng on eccentrics connected by a flat platen latch link Pulling the latch toward the front pivots the latch lever over the platen shaft The latch engages a notch in the latch lever locking the two toge...

Страница 231: ...the same as on the Model B The carriage final stop has been eliminated Due to the new carriage lengths a new truck insertion method is used Figure 16 THIRTEEN INCH CARRIAGE Pos1tion No 1 SEVENTEEN IN...

Страница 232: ...e by moving it to the left INNER CARRIAGE The inner carriage may be re moved without disturbing the rails or carriage ad justments by following the procedure outlined in the Model Bl section of the Re...

Страница 233: ...eliminates the tab rebound check lever the air cylinder and the horseshoe shaped tab lever mounting bracket The centrifugal governor operates as the carriage moves to the left during tabulation As th...

Страница 234: ...ate tightening its spring clutch and rotating the gear and hub assembly The gear and hub assembly drives the pinion gear of the centrifugal governor which de creases carriage speed during the last por...

Страница 235: ...the last portion of a tabulation and absorbs the shock o Carriage Motion Tab Decelerator Link Tob Check Lever Tab Decelerator Bellerank Figure 19 Tabulation Deceleration Removal The decelerator gear...

Страница 236: ...CH COLLARS The tabulation and carriage return spring clutch collars should be positioned on the shaft so as to allow their decelera tor arms to rotate freely without exceeding 003 end play of the arms...

Страница 237: ...or bellcrank link 5 Remove the tab lever pivot stud 6 Remove the tab lever by lifting it up and toward the rear Reassembly may be accomplished by reversing the above procedure Avoid over tightening th...

Страница 238: ...ween the working surfaces of the escapement pawl and an escapement rack tooth when the tab check lever is in its extreme left position Figure 21 1 Depress the tab cam with the power OFF and ro tate th...

Страница 239: ...ing nuts so as not to spring the carriage end plates 5 TAB LATCH Adjust by positioning the eccentric mounting stud so that the tab check lever engages 1h to of the exposed surface of a set tab stop wh...

Страница 240: ...025 between the working surfaces of the tab check lever and a tab stop when the parts are at rest Figure 25 Position the keeper front to rear so that there is a clearance of 003 to 010 between the tab...

Страница 241: ...lever extension Obtain this clearance by forming the tab lever extension 10 PAWL RELEASE LEVER Form the rear up right lug so the escapement pawl clears the escape ment rack by 010 to 020 11 DECELERATO...

Страница 242: ...latching action Figure 28 Release of the carriage return cam pulls the clutch lever forward causing the clutch to engage and de velop a pull on the carriage return tape The line space and pawl release...

Страница 243: ...r through the carriage return decelerator bellcrank Refer to Decelerator section of this manual Removal Refer to Model Bl section Adjustments 1 CAM CLEARANCE Refer to Model CI Space bar Adjustment 1 2...

Страница 244: ...of the bellcrank and adjust so the slot in the clutch latch bellcrank is in line with the hole in the car riage return tab interlock when the clutch is latched 6 CLUTCH UNLATCHING LINK Adjust the lin...

Страница 245: ...e Return Adjustment 18 12 COMPRESSION SPRING Adjust so the carriage will return to the left margin from any position along the writing line with the variable linespace lever to th rear 13 MARGIN CONTR...

Страница 246: ...t the shift pusher Iever spring 6 Remove the shoulder screw and the pusher and levers assembly through the right side frame Adjustments Rim and cylinder must be properly adjusted be fore making any ad...

Страница 247: ...del C carbon ribbon mechanism is com pletely contained within the case of the typewriter and has been redesigned to provide easier threading and more accurate feeding It is not possible to accommodate...

Страница 248: ...racket is inclined for easier re moval of the used ribbon Take up action is accom plished through a friction drive gear attached to the power roll pulley and engaging gear teeth on the in side flange...

Страница 249: ...ng bracket 3 Separate the two halves of the ribbon spool and discard the used ribbon 4 Replace the re assembled ribbon take up spool and latch the mounting bracket 1 5 Place a full spool of ribbon on...

Страница 250: ...spool is empty 6 REWIND MOUNTING PLATE Position the plate to insure positive engagement of the take up spool gear teeth with the friction drive gear on the power roll pulley RIBBON MECHANISM FABRIC T...

Страница 251: ...l ro tating the wheel and the drive shaft to which it is connected Gears connected to the drive shaft trans fer this rotation to the ribbon spools The lateral position of the shaft controls which gear...

Страница 252: ...teeth of the drive shaft primary cam Figure 38 As the drive shaft rotates the secondary cam pinned to the drive shaft climbs the high points of the now stationary primary cam This pulls the drive shaf...

Страница 253: ...on Rewind Adjustments The ribbon mechanism will when properly ad justed provide positive ribbon feed in either direc tion and reverse dependably at either end 1 LEFT HAND AND RIGHT HAND DRIVE SHAFT M...

Страница 254: ...cam permits the sensing finger to clear the left hand ribbon spool when the front cover is open Adjust the link to per mit the sensing finger to clear the spool with the front cover open The link must...

Страница 255: ...tion the drive shaft to the left so there is a clearance of Is between the C clip on the shaft and the left hand bushing in the keylever bearing sup port Figure 41 Set the nylon primarY cam against th...

Страница 256: ...re 42 Drive Shalt Collar Adjustmml 13 REVERSE LEVER ECCENTRIC STOP With the reverse lever unlatched adjust the eccentric stop until the primary cam clears the keylever bearing support by 006 002 Figur...

Страница 257: ...ition the stud n the reverse lever to release the rewind latch from the rewind lever when the reverse lever has moved counter clockwise past its latch 005 to 008 Figure 44 RtlfJerse Lefler Stud 15 BUT...

Страница 258: ...n the teeth on the primary cam Figure 38 The sensing finger should be located ver tically to center between the ribbon spool flanges 17 LEFT REVERSING ECCENTRIC With the re verse lever latched and the...

Страница 259: ...lears the d ive wheel by Figure 46 20 TRANSFER WHEEL BELLCRANK With the rewind lever latched position the bellcrank eccentric mounting stud so that the transfer wheel clears the flange on the power ro...

Страница 260: ...ence in ring and cylinder between upper and lower case characters by using a strip of 003 paper as a feeler gauge between the platen and typebar when checking the lower case and additional strips when...

Страница 261: ...lable Individual parts for former style ribbon feed as sembly wi II be avai lable for r placement purposes If the former style assembly must be replaced it will be necessary to order B M 1271389 Modi...

Страница 262: ...inger extension should be formed so that it unlatches the reverse lever when the tip of the sens ing finger is 1 8 1 16 from the spool shaft Fig 1 2 UNLATCHING POINT Fi gure 2 Drive and Check Clutches...

Страница 263: ...hes when the left drive gear is 005 to 015 totherightofthedriven gear Figure 6 fl MESHED pas 1TI ON OlO MO aA Figure 5 Figure 6 Right Sensing Cam Adjust so when the sensing finger is bot Tomed in the...

Страница 264: ...D J Figure 8 Side Extension of Cone Follower Form the side extension of the cone follower so when the rewind button is held depressed at the end of a rewind cycle the secondary cam will travel 7 8 to...

Страница 265: ...button when in the center lift position NOTE In order to rewind the ribbon to the right the following steps should be followed With the machine on and the left drive gear engaging the left driven gear...

Страница 266: ......

Страница 267: ...1118295 25 Clutch spring 193 1071687 15 Spring 1271389 35 00 F l BIM modified 168 219633 01 Clip 194 1116341 1 00 Latch fabri c ri bbon feed 169 1078469 15 Screw 195 196298 01 Screw 170 1063797 35 Col...

Страница 268: ...purposes order 1271389 F 1 B M Modified Fabric Ribbon Feed B M 1271009 is no longer available Use present stock unti I depleted Parts ManuaI Changes Delete 1118354 page 17 and 1271009 page 18 Model C...

Страница 269: ...ments 3 Expander 6 Space Bars 9 Back Space 10 Rotary Back Space 12 Grouping Adjustments 14 Tabulation 17 Carriage Return 19 Repeat Line Spacing 21 Carbon Ribbon Feed 21 Proportional Carbon Ribbon Feed...

Страница 270: ...Copyright 1953 by International Business Machines Corporation 590 Madison Avenue New York 22 N Y Printed in U S A September 1953 Form 25 6016 0...

Страница 271: ...mounting plate guide pins THE SUPPORT MOUNTING PLATES should be adjusted up or down so that the selector bars just clear the bails in the lower case THE SELECTOR BAR GUIDE COMB should be adjusted at...

Страница 272: ...and bails bars should be formed up to open and down to close the clearance PAWL END S AND INTERPOSER CLEARANCE should be adjusted by moving the trip lever stud backward or for ward until 010 to 020 c...

Страница 273: ...HE TRIPPING POINT in both upper and lower case should be checked The lug on the universal bar can be formed up or down to equalize the tripping point THE INTERPOSER OVERTHROW STOP should be adjusted s...

Страница 274: ...nt can be best observed by the position of the 1 and 8 pawls looking above and down just in front of the rear rail with the carriage at the extreme right EXPANDER ADJUSTMENT Move the carriage to the r...

Страница 275: ...until the correct amount of overlap is obtained Figure 5 THE EXPANDER BELL CRANK STOP SCREW is normally set in the center and should permit the formed offset on the bottom of the expander bell crank t...

Страница 276: ...ich is located just below the 8 pawl The steel band that serves as a stop for the notch on the front edge of the pawls may be removed by springing the top off from the small stud that retains it The p...

Страница 277: ...awl and the 1 pawl an adjustment in the elevation of the escapement pawl block assembly can be made Figure 9 SPACE BARS THE SPACE BAR CAM should be adjusted so that the re lease lever lug will just dr...

Страница 278: ...mi nating the lost motion in the 3 unit actuating lever and linkage BACK SPACE THE BACK SPACE GUIDE PIN BRACKET must be posi tioned by its mounting screws to meet two conditions Figure 11 1 The tails...

Страница 279: ...ill just drop behind the cam lug when the key is tripped THE CAM RELEASE LINK should be adjusted to trip the cam when the key lever is 1 2 to 3 4 depressed THE BACK SPACE CONNECTING LINK should be adj...

Страница 280: ...its of travel will be indicated when the 8 pawl drops into the rack with 1 2 unit overtravel Check the escapement pawl block assembly to insure that the pawls are square with the escapement rack Figur...

Страница 281: ...elease lever will just drop behind the cam lug THE BACK SPACE PAWL CARRIER LINK Figure 14 should be adjusted so that the slot in the bell crank on the rear rail will lie parallel to the rear rail when...

Страница 282: ...learance between the back space pawl and the interlock lug with the back space cam on its high point With the back space cam at rest adjust the link from the interlock to the clutch bell crank so that...

Страница 283: ...ATCH Position the latch stud to the rear of its enlarged hole With the carriage resting on the 1 or 5 pawl loosen the screw in the adjustable grouping latch Figure 17 Posi tion the latch for one unit...

Страница 284: ...oned too far toward the tails of the escapement pawls This would cause the spring lugs of the 4 and 8 pawls to restrict the full travel of the latch THE PAWL GROUPING LEVER should be adjusted to just...

Страница 285: ...he 4 and 8 pawls away from the pawl stop strap and upon release of the interlock the pawls should again touch the stop TABULATION THE TAB CAM should be adjusted by means of its stop so that the cam re...

Страница 286: ...t THE REBOUND CHECK should be adjusted on its elongated holes until it clears the right hand face of the tab stop by 010 with the tab lever latched THE OVERTHROW STOP is an upright lug on the tab rebo...

Страница 287: ...e the pawl in the friction ratchet teeth by the thickness of its own metal It should safely clear the ratchet with the tab at rest FRICTION GOVERNOR PRESSURE should be adjusted by means of the two loc...

Страница 288: ...is 005 to 015 clearance between the latch and i the clutch lever with the cam on its high point The lower reading is preferable 7 THE CLUTCH KNOCKOUT LEVER TIP is adjusted so that when the C K O tip...

Страница 289: ...dex pawl to interfere while turning the platen backward Frequently this adjustment alone will be sufficient REDUCE ESCAPEMENT PAWL CLEARANCE as low as possible and still not permit the pawls to drag t...

Страница 290: ...ge THE DRIVE SPRING BELT should be just tight enough to take up the slack ribbon as it is fed through the feed rollers Tension should be checked when the rewind spool is nearly filled because greater...

Страница 291: ...aracters THE SELECTOR BAR LINK should be adjusted so that the lower arm will drop off the selector lever when the type bar has completed 1 3 to 1 2 of its travel toward the platen Figure 24 1 H Magazi...

Страница 292: ...o hold the ribbon feed cam away from the power roll when ever the color control is moved to the stencil position Because some type faces cut the ribbon and contribute to breakage the following charact...

Страница 293: ...al 1 32 12 29 2 1 PM 32 Modern 1 32 10 29 B 2 Z PE 40 Documentary 1 32 11 29 B 2 c PG 46 Copperplate Gothic 1 36 12 6 29 B 2 til PH 47 Text 1 45 9 33 2 lor 2 PF 50 Mid Century 1 36 12 29 B 2 orB PR 51...

Страница 294: ...except flitsjr 2 units w 4 units m 5 units All upper case alphabetical characters are 4 units except IJ 2 units BEFLPRS 3 units MW 5 units MID CENTURY 1 36 unit type All lower case alphabetical charac...

Страница 295: ...3 Tabulation ___________________________________18 Carriage Return ______________________________22 Spacebars ____________________________________26 Backspace ____________________________________28 Ro...

Страница 296: ...MODEL 84 CUSTOMER ENGINEERING 1957 by INTERNATIONAL BUSINESS MACHINES CORP 590 Madison Avenue New York 22 New Nork Printed in U S A April 1959 Form 25 6171 3 2...

Страница 297: ...B1 Several features of the Executive Electric Type writer are common to the standard model and wm not be repeated in this section These features in clude Motor and Drive Key Levers Letter Cams Typeba...

Страница 298: ...lease lever 12 Remove the margin set lever 13 Disconnect the carriage tension tape and slowly let the main spring take it up until the end clip of the tape is caught by the small idler pulley where it...

Страница 299: ...sm Adjustments 1 SHIFT MOTION Check for proper adjustment Any change in shift motion necessitates a change in the bail shaft link adjustment 2 BAIL SHAFT LINK Adjust so that the bail mounting plates w...

Страница 300: ...e selector bars just clear the bails in the lower case position Figure 2 4 SELECTOR BAR GUIDE COMB Raise this as high as possible and lock it in place Figure 2 This should allow free travel of the sel...

Страница 301: ...pawl is holding the car riage Adjustment should be made in relation to the closest pawl tail Be sure a clearance is maintained between the right side of the interposer cage and the pawl tails Check b...

Страница 302: ...Position this stud so that the front edge of the expand interposer when in the expand position is 4 to il2 to the rear of the front edge of the 2 unit interposer Figure 5 8 EXPANDER BELLCRANK ARM Form...

Страница 303: ...MOVAL is the same as for the float ing interposers Adjustments 1 5 Refer to Floating Interposers Selection adjust ments 1 through 5 this section Figure 6 Upper Guide Bracket Adjustment 6 UPPER INTERPO...

Страница 304: ...ion the carriage to hold on the 1 escapement pawl Check the overlap of the 2 pawl tail on the 2 unit in terposer Figure 7 Position the carriage to hold on the 7 pawl and check the overlap of the 8 paw...

Страница 305: ...wl tail on the 2 unit interposer Move the expand button to the expand position Ob serve that the 3 escapement pawl tail now has the same overlap on the 2 unit interposer Figure 10 as the 2 escapement...

Страница 306: ...Interposers Selec tion adjustment 9 this section 12 INTERPOSER OVERTHROW STOP Adjust so that by holding a typebar against the platen a clear ance the thickness of bond paper will be visible be tween t...

Страница 307: ...the interposer cage 9 Remove the margin control bellcrank 10 Block the carriage to prevent movement and re move the two screws which secure the pawl block to the rear rail The assembly may then be re...

Страница 308: ...the pawl tails when all parts are at rest Figure 14 Before forming the tip be sure it is resting against the pawl release lever and that the apron of the pawl release lever is flat against the rear ra...

Страница 309: ...carriage end plate In this manner the carriage may be held in an almost full right position so that the escapement pawls may be viewed without interference b Position the carriage as described in a a...

Страница 310: ...numerical sequence of the Pawl Arrangement With Floating Interposers Previous Paw Arrangement Figure 16 Escapement Pawls Grouped escapement pawls may vary note the number of the escapement pawl befor...

Страница 311: ...ith the tab lever latched and held by the keeper the grouping latch will bot tom in the notch of the intermediate grouping lever and clear the left side of this notch by 001 to 004 Figure 17 7 GROUPIN...

Страница 312: ...e grouping latch in the notch of the intermediate grouping lever 4 With a spring hook pull the 1 or 5 escapement pawl to the left until the spring lug is felt to strike the bail of the latch releasing...

Страница 313: ...REFERENCE MANUAL Tab Lover Pivot Stud Figure 19 Tab Uve1 Phlol Figure 20 Tab Actuating Mechanism 19 MODEL 84...

Страница 314: ...left or right until the tip of the tab check lever will be in line with the nearest set tab stop Figure 21 This adjustment will determine the correct re entering position of the escapement pawls in r...

Страница 315: ...ition and against the pin in its bracket the leading edge of the rebound check lever will clear the tab rack by 010 to 015 Figure 22 9 TAB LEVER EXTENSION Form this so that with the tab cam on its hig...

Страница 316: ...ulation adjustment 12 Model Bl 16 TAB CLEAR LEVER STOP Refer to Tabula tion adjustment 13 Model Bl 17 TAB SET AND CLEAR LINKS Refer to Tab ulation adjustment 14 Model Bl CARRIAGE RETURN Adjustments 1...

Страница 317: ...position With the tab lever latched form the lug on the automatic group ing lever so that it clears the carriage return tab in terlock by 010 to 015 Figure 25 8 MARGIN CONTROL PLATE Adjust to allow 00...

Страница 318: ...015 Clearance Figure 25 Carriage Retum Tab Interlock Adjustment Figure 26 Margin Control Plate Adjustment 9 CLUTCH UNLATCHING LINK Adjust so that the clutch will unlatch when the margin control lever...

Страница 319: ...l Release Adjustment ll MARGIN RACK Adjust to the left or right so that when the carriage is returned to the left margin there will be 4 units of overbank between the mar gin control lever and its fin...

Страница 320: ...IR CYLINDER PORTS AND CLUTCH COM PRESSION SPRING Refer to Carriage Return ad justment 20 Model B1 15 CLUTCH PULLEY SPRING Refer to Carriage Return adjustment 21 Model B1 SPACEBARS Adjustments 1 CAM CL...

Страница 321: ...m the keylever is to be adjusted to allow the inter poser to clear the top of the formed lug on the space bar actuating lever by iil2 as the lug passes under the front of the interposer during 2 unit...

Страница 322: ...epressed When the operating link is properly ad justed the interposers will move about 4 farther forward after the last escapement pawl has been tripped BACKSPACE Adjustments 1 PAWL BLOCK ADJUSTING PL...

Страница 323: ...points of the number 4 backspace pawl will bottom evenly between two teeth in the escapement rack Figure 33 b The guide pin must guide the remammg backspace pawls into the escapement rack in the same...

Страница 324: ...to fully align the pawls when the backspace cam is on its high point Figure 36 Unhook the aligning link and place the backspace cam on its high point Pull the aligning link to fully align the escapeme...

Страница 325: ...1 on the bottom the carriage should be held by the 2 escape ment pawl while the 1 escapement pawl is observed dropping into the next escapement rack tooth If backspace fails after completing the pre v...

Страница 326: ...s adjustment is made 2 CAM RELEASE Adjust the cam release link so the the cam will be released after the backspace keylever has been depressed to 3 4 of its full travel 3 PAWL BLOCK ADJUSTING PLATE Re...

Страница 327: ...he full length of carriage travel This is a very important adjustment which must be set carefully and critically The screw must be tightened securely to prevent the adjustment from slipping during ope...

Страница 328: ...kspace Ratchet Adjustment 10 ALIGNING LINK Adjust the aligning link so that the escapement pawls will be fully aligned when JA travel remains on the surface of the cam 11 LOWER PAWL STOP Set this by p...

Страница 329: ...enter guide in order to discourage breakage at that point 4 RIBBON TAKE UP Tension of the spring belt driven take up mechanism should be sufficient to take up the slack ribbon as it is fed through the...

Страница 330: ...inward toward the magazine plate 5 CAM CLEARANCE Refer to Ribbon adjust ment 1 Model Bl 6 CAM RELEASE LINK Refer to Ribbon adjust ment 2 Model Bl 7 CAM LINK Refer to Ribbon adjustment 3 Model Bl 8 PRO...

Страница 331: ...ector bracket up or down Lower ing the bracket will increase the amount of feed while raising it will decrease the feed Recheck the five unit adjustment and selector bar link adjustment and change if...

Страница 332: ...ines with out a Repositioning Indicator move the front rail dust cover left or right until the card holders serve as a position finder Test for proper position by placing the right side of any typed c...

Страница 333: ...re in the raised position is even with thetop of an upper case character such as the capital N Figure 46 Repositioninf Indicator FRONT PAPER SCALE Adjustments 1 FRONT PAPER SCALE With the left margin...

Страница 334: ...PE 40 Documentary 1 32 11 29 8 2 PG 46 Copperplate Gothic 1 36 12 6 29 8 2 t PH 47 Text 1 45 9 33 2 lor2 C PF 50 Mid Century 1 36 12 29 8 2or8 c en PR 51 Charter 1 45 8 33 2 lor2 t 0 PB 57 Bold Face...

Страница 335: ...units DIRECTORY 132 unit type All lower case alphabetical characters and num bers period and comma are 3 units except flitj 2 units hnuw 4 units m 5 units All upper case alphabetical characters are 4...

Страница 336: ...its except flitjr 2 units mw and all numbers 4 units All upper case alphabetical characters are 4 units except 1 2 units J 3 units MW 5 units CHARTER 5 unit type All lower case alphabetical characters...

Страница 337: ...rriage and Rails ____________________________ 3 Selection and Escapement ____________________ 4 rouping ____________________________________ 5 Tabulation __________________________________ 5 Carriage...

Страница 338: ...1958 by INTERNATIONAL BUSINESS MACHINES CORP 590 Madison Avenue New York 22 New York Printed in U S A 1958 Form 241 5003 0...

Страница 339: ...gned to incorporate the decelerator and other Model Cl improvements Removal 1 Remove the rear cover 2 Remove the three interposer bellcrank links and their springs 3 Remove the interposer bellcrank gu...

Страница 340: ...ning link pawl release link and clutch unlatching link 4 Disconnect the pawl aligning lever spring 5 Disconnect the tab check lever spring 6 Disconnect the tab latch spring 7 Remove the spring from th...

Страница 341: ...3 4 PAWL RELEASE LEVEn Form tlle angular tip at the left end of the pawl release lever so that there is a clearance of 001 to 005 between the angular tip and the tab lever with tl1e parts in their re...

Страница 342: ...ace the link in the low er hole of the release lever and the rear keylever hole Adjust the clevis to trip the cam when the key lever is depressed lh to of its downward travel 4 TAB RACK Tl e tab rack...

Страница 343: ...OPERATING LINK Refer to Model Cl Tabula tion Adjustment B 9 TAB LEVER EXTENSION Refer to Model Cl Tabulation Adjustment 9 10 PAWL RELEASE LEVER Refer to Model B4 Grouping Adjustment 3 and Model C4 Gr...

Страница 344: ...pull on the pawl re lease link rotates the intermediate pawl release lever assembly causin pawl release When the carflag is at the left margin the margin control bellcrank is in its operated tiosition...

Страница 345: ...tment 6 8 MARGIN CONTROL BELLCRANK STOP Posi tion the eccentric washer so that the intermediate pawl release bellcrank engages the ear on the mar gin control bellcrank by the thickness of its own meta...

Страница 346: ...o allow the cam to reset just be fore the keylever contacts the stop bracket 4 THREE UNIT SPACEBAR INTERPOSER LINK Refer to Model B4 Spacebar Adjustment 3 5 ACTUATING LEVER LINK Refer to Model B4 Spac...

Страница 347: ...ACHINE FEATURES PaJ1e Formscarrier Attachment 3 Carbon Blades 5 Ordering Blades 7 Lift Platen 7 Threading Forms 7 Removal and Adjustment Procedure 8 Formscarrier Attachment 8 Lift Platen Carriage 10 B...

Страница 348: ...I Copyright 1957 by International Business Machines Corporation 590 Madison Avenue New York 22 N Y Printed in U S A June 1957 Form 25 6017 1...

Страница 349: ...a part of the body of the formscarrier The truck is operated by a telescopic adjust able handle The telescoping handle is held in position by a pin seated in anyone of a series of holes in the bottom...

Страница 350: ...II Blade Support Posts I a I Telescopic Handle Adjustable o C m n c en 4 0 m m Z C Z m m Z C...

Страница 351: ...o 13 5 8 without slitters Fanfold or open web forms may be used each of which requires a different style of blade Carbon Blades FANFOLD BLADES are used to hold carbon paper within the folds of a fanfo...

Страница 352: ...ges and registration is accomplished either by means of a register pin or visually by the oper ator Open web forms may also be registered by using a pin feed platen if the forms have perforations alon...

Страница 353: ...rangement should be shown Lift Platen THE P LATEN MAY BE RAISED by means of the lift lever to allow the carbon to be pushed back to the next form Because of this feature thin hooked wire springs are u...

Страница 354: ...revent the type from embossing the form The supply of forms should always be located as high as possible under the rear form guide to facilitate paper feed and to insure faultless line spacing REMOVAL...

Страница 355: ...ew for each pair of rollers 5 THE POSITIONING STRAPS on the blade support posts should be adjusted to remove excess motion of the carbon blades in the support posts 06 THE BLADE SUPPORT POSTS should b...

Страница 356: ...or the register pin assembly per mits use of the same top cover as that for the leading edge gage FiAure 6 Rel1ister Pin Assembly Lift Platen Removal The lift platen may be removed from the platen lif...

Страница 357: ...s posi tioned correctly 2 THE RING AND CYLINDER adjustment is made by setting the double screws located on the inside of the platen lift arms Figure 8 When making this adjustment the form should be in...

Страница 358: ...LOWER INDEX PAWL STOP is adjusted for a full one tooth travel and a positive positioning of the platen To observe these adjustments the platen should be low ered and latched in position 7 PAPER CLEAR...

Страница 359: ...justment the stop properly The momentum of the heavier carriage will carry the carriage too far and result in extra back spaces Adjust the backspace pawl stop as far to the left as possible and still...

Страница 360: ...INEERING REFERENCE MANUAL CONTENTS Lubrication Page 4 Decimal Tabulation Adjustments 4 Carriage Return 9 Back Space 10 Removal of Interposers 11 Decimal Tabulation Margin Lever 14 INTERNATIONAL BUSINE...

Страница 361: ...Copyright 1953 by International Business Machines Corporation 590 Madison Avenue New York 22 N Y Printed in U S A May 1955 Form 25 6018 1...

Страница 362: ...m 100 000 000 000 000 to the comma before the hundred thousands position Since it is unlikely that very narrow columns would be combined with very wide columns this method provides a practicable means...

Страница 363: ...the decimal tab key levers Figure 1 2 THE CAM RELEASE LINK should be adjusted so that the cam will be released as late as possible but with positive action 3 THE TABULAR KEY LEVER LUG should be forme...

Страница 364: ...n its high point the latch vane will clear the latches by 020 Figure 2 With the key lever still depressed allow the tab lever to unlatch The vane should then rest on the latch by ap proximately 020 Fi...

Страница 365: ...trict the interposers at rest 10 THE TAB RACK should be adjusted to the left or right so that the escapement pawl will enter the rack as shown in Figure 5 after striking a tabular stop This can be che...

Страница 366: ...extreme left the rebound check pawl will clear the rack by 005 to 015 Figure 6 13 THE TAB REBOUND CHECK PAWL ECCENTRIC STUD should be adjusted so that when a set tab stop is pressed against a latched...

Страница 367: ...With the inter poser guide pushed to the extreme right and the tab operat ing lever actuated no interference will result if the high point of the eccentric is kept to the rear FiAure 8 Rear Rail Rear...

Страница 368: ...ely the speed of carriage return but without excessive shock to the carriage 22 THE LINE LOCK PUSH ROD is adjusted so that with the right hand margin stop resting against the margin lever and with a l...

Страница 369: ...R ECCENTRIC should be adjusted so that the escapement pawl will clear the rack by 1 64 when the clutch is latched Back Space THE BACK SPACE MECHANISM is to be adjusted in the same manner as the standa...

Страница 370: ...ld occasionally back space more than one space at a time it may be necessary to increase carriage tension about one half pound and set the link a half tum longer Reinovaloflnterposers A procedure has...

Страница 371: ...oe clip from the left end of the interposer fulcrum Remove the 100M interposer from its position while holding the other interposers together with a spring hook Use the 100M interposer as a spacer to...

Страница 372: ...ement of Interposer Links for Closed Number Operation without Commas 1 N N til II 01 01 0 0 Hold the 100 10 1 and decimal interposers together with a spring hook Remove the other interposers and rear...

Страница 373: ...e reverse order of that de scribed and check for binds Decimal Tabulation Margin Lever A margin lever has been adopted which eliminates changing the entire margin lever bracket assembly if the margin...

Страница 374: ...and B16 Decimal Tabulation CUSTOMER ENGINEERING REFERENCE MANUAL CONTENTS Operation Carriage Return Adjustments Other Adjustments Page 3 6 7 INTERNATIONAL BUSINESS MACHINES CORP NEW YORK 22 NEW YORK F...

Страница 375: ...Copyright 1954 by International Business Machines Corporation 590 Madison Avenue New York 22 N Y Printed in U S A August 1954 Form 25 6620 0...

Страница 376: ...mal Tabulation The carriage return mechanism is altered considerably The clutch latching is controlled by the air cylinder latch mounted on the rear rail and the air cylinder operating lever 1 6 Eccen...

Страница 377: ...ound check pawl and prevents it from engaging the rebound rack when the clutch is engaged Figure 3 2 The rebound release lever strikes an extension on the tabular latch moving the interposer guide ass...

Страница 378: ...se of the intake and exhaust ports on the Model Bl and B4 air cylinders 5 The backspace side operating link used on Model B decimal tabulation is the same as used on Model A partial carriage return Th...

Страница 379: ...n the key lever is in its over travel position and has depressed the spring loaded plunger 1 16 3 THE FRONT CLUTCH LEVER LINK is adjusted to just span the distance between the cam at rest against its...

Страница 380: ...ched If this adjustment cannot be obtained it may be necessary to modify the pawl release link adjustment 7 9 THE MARGIN LEVER GUIDE ROLLER is positioned so that the upper surface of the margin lever...

Страница 381: ...IBM ELECTRIC TYPEWRITERS MODELS C15 AND C16 CUSTOMER ENGINEERING REFERENCE MANUAL DECIMAL TABULATOR INTERNATIONAL BUSINESS MACHINES CORP New York 22 New York Form 241 5036 0 this section only...

Страница 382: ...1959 INTERNATIONAL BUSINESS MACHINES CORP 590 Madison Avenue New York 22 New York__ Printed in U S A May 1959 Form 241 5036 0...

Страница 383: ...pring are cocked by the action of the tab cam through the transfer lever and link and are released by the movement of the inter poser cage to the left during the tab unlatching action It is not necess...

Страница 384: ...5 Adjust the eccentric stop for this condition Figure 2 The bail operating link must be disconnected when making this adjustment Insufficient overlap could prevent the bail from restoring the interpos...

Страница 385: ...Figure 2 4 BAIL LATCH Form the ear on the left bail arm forward or back to obtain 2 to 116 clearance be tween the bail and an interposer link when the link is raised and the bail is latched up Figure...

Страница 386: ...when the cam reaches its high point the restoring bail will have been pulled 732 past its latching point Figure 4 If the link is too short it will cause the right bail arm to choke off on the interpos...

Страница 387: ...f the cam trip bail and the tops of the notches in the key stems Insufficient clearance at this point may allow the cam to repeat S CAM RELEASE LINK Adjust the cam release link to allow the cam to be...

Страница 388: ...as to establish the correct re entering position of the escapement pawl in relation to the escapement rack teeth Check the adjustment in the following manner 1 Set a tab stop 2 Release the cam and an...

Страница 389: ...act at the center is the same as at the ends The contact point MUST be below where the bevel starts to insure that the carri age will not lock up during carriage return if an in terposer fails to rest...

Страница 390: ...allows the escapement pawl to restore to the rack one tooth early each time The escapement pawl will then stop the movement of the carriage preventing the tab check lever from ever being pushed to its...

Страница 391: ...the tab check lever keeper to satisfy 2 conditions a Tabulate to a tab stop and backspace twice Depress the same key with the machine turned off The raised interposer should clear the side of the tab...

Страница 392: ...ever keeper 19 LATCH RELEASE LINK Adjust the latch re lease link Figure 5 so that the interposer restoring bail is released at the same time the tab lever is un latched or just afterward Both parts sh...

Страница 393: ...ear There must be no binds between the 2 gears throughout the full rotation of the decelerator hub gear b Position the spring between the 2 centri fugal governor arms so that the speed of the carriage...

Страница 394: ...which the clutch unlatching link is attached A carriage return tab interlock has been designed which is operated by the left end of the tab lever to unlatch the clutch A carriage return backspace int...

Страница 395: ...is not restricted when the tab lever is at rest 005TO OIO CLEARANCE CLUTCH LEVER Figure 15 Carriage Return Tab Interlock Adjustment 3 CARRIAGE RETURN BACKSPACE INTER LOCK Form the extension of the ba...

Страница 396: ...Loosen the interposer cable clamps Disconnect the cables from the front bellcranks and slide the cables from under the clamps 3 Remove the drive belts and motor adjusting screw 4 Disconnect the tab le...

Страница 397: ...MER ENGINEERING REFERENCE MANUAL ELECTRONIC MAINTENANCE GUIDE COMTlHTS p Meters 3 Tubes 3 Diodes 3 Resistors 4 Capacitors 5 General Hints 6 INTERNATIONAL BUSINESS MACHINES CORP NEW YORK 22 NEW YORK Fo...

Страница 398: ...Copyright 1957 International Business Machines Corp 590 Madison Avenue New York 22 N Y Printed in U S A September 1957 Form 25 5013 0...

Страница 399: ...ever attempt to measure ohms with the power on Always start voltage measurements with meter set on the highest range and observe proper polarity when measuring DC voltages to prevent meter damage TUBE...

Страница 400: ...ead of the ohmmeter cannot be determined take a reading with the leads one way then reverse the leads and take another reading The lowest reading is the forward resist ance and the highest reading is...

Страница 401: ...case band e is black it means that there is no zero or significant digit i e if the A band is brown B is black and e black the value of the resistor is 10 ohms CAPACITORS The larger capacitors have t...

Страница 402: ...rcing and prevent good contact 5 Have all contacts adjusted to make close with plenty of rise so that there is a wiping action to the contact sur faces This means that after the contacts are closed in...

Страница 403: ...RAOE MARl ELECTRIC TYPEWRITERS ATTACHMENTS CUSTOMER ENGINEERING REFERENCE MANUAL ELECTRONIC TABULATION INTERNATIONAL BUSINESS MACHINES CORP NEW YORK 22 N Y Form 25 6718 0 Electronic Tobulation Section...

Страница 404: ...Copyright 1956 by International Business Machines Corporation 590 Madison Avenue New York 22 N Y Printed in U S A Form 25 6718 0...

Страница 405: ...the entire rack Figure 8 This is accom plished by first clearing all set stops and moving the carriage to the right hand margin The tronic tab button is then depressed completely and held down while...

Страница 406: ...ront rail dust cover Figure 1 When the sensing finger is in the vertical position the four sensini wires contact the surface of the paper As the moving carriage brings a conductive line in contact wit...

Страница 407: ...lj cfO m Contact Plate fIxed P itlonl m m Z n 0 m n 0 Z C til Q S III Q t Operating Lover III S t t n 1 3210 Between points t Tab lever t mil III m Z t en...

Страница 408: ...the exact center of the type guide 5 The left edge of the form should be in line with anyone of the lines on the paper table 6 If the above conditions do not exist the form should be moved into the c...

Страница 409: ...is free to rotate The left hand line gage card holder has been relieved to permit the sensing finger to be pivoted down and away from the paper when in its rest position Figure 1 The sensing finger sh...

Страница 410: ...ms 005 to 010 between the plate and the shoulder of the sensing finger stud If contact is too loose slightly bow the springs away from the plate Figure 2 4 BELLCRANK AND LINK ASSEMBLY The sensing fing...

Страница 411: ...echanism 6 LATCH LEVER AND MAGNET ASSEMBLY The magnet assembly must be positioned so that when the armature is in the forward position it will keep the latch lever from rotating past it When the tab l...

Страница 412: ...tronic Tab Switch and Set Mechanism 8 TAB REBOUND CHECK LEVER When the machine is in electronic tab and the tab lever is latched out the leading edge of the rebound check lever should just clear the s...

Страница 413: ...lor control button when in its standard tab position It should also toggle the tab switch when the button is depressed into the electronic tab position Figure 6 FiA 8 Tab Stops Pre Set lor Electronic...

Страница 414: ...and contact plate a magnet and a contact which operates in conjunction with the tab lever When the tab key is depressed the tab lever contact is closed as the tab lever is latched out This completes t...

Страница 415: ...ep 2 repeat the procedure but now short out the two contact plate springs If the magnet is energized the trouble is be tween the sensing finger contacts and the contact plate springs 4 If the magnet i...

Страница 416: ...readjustment of the front rail dust cover sensing mecha nism paper table or tab rack Machine Limitations When instructing the user sales personnel should cover the following limitations of the electro...

Страница 417: ...lOOK m 1 1N UV 8 4 1 Z TubeC_to C IN lOOK 1 IN 111 IN 22K I No 1 G 1d II 2 Cathode 02 FiI 5 7 No 2G 1d 6 Anode P l 1 P 2 Yellow n r m Z en T ab O ________Q T _ _kh ________ __ __________ o Y irr i_ r...

Страница 418: ...shorts appear replace tube 22K ohm resistor in 9V line open Unsolder one end of resistor from terminal check grid floats for open circuit or proper resistance with ohmmeter 22K ohm resistor to tube p...

Страница 419: ...fuse is blown if good zero volts will be indicated If a neon tester is used a glow will occur on a blown fuse but will not glow on a good fuse Check across pins 3 and 4 of tube with ohmmeter for open...

Страница 420: ...IBM flAOI MAlI ELECTRIC TYPEWRITERS ATTACHMENTS CUSTOMER ENGINEERING REFERENCE MANUAL VISIBLE INDEX CARD HOLDER INTERNATIONAL BUSIN ESS MACHINES CORP NEW YORK 22 N Y Form 25 6703 0 V I e section only...

Страница 421: ...Copyright 1956 by International Business Machines Corporation 590 Madison Avenue New York 22 N Y Printed in U S A August 1956 Form 25 6703 0...

Страница 422: ...ding upon the length of the carriage From one to three writing lines can be typed on each card FLAT FEEDING of the cards past the writing line eliminates curvature of the card THE TYPEWRITER can be ea...

Страница 423: ...of the platen stop lever and tighten the plastic knob 7 Pull the paper release lever forward Installation of the paper release lever spring 1109870 will assist in keeping the paper release lever forwa...

Страница 424: ...lch I awl Nut Figure 1 Platen Latch Pawl Adjustment b Place the detent release lever in its forward position to obtain the proper position of the platen by means of the detent roller Move the detent r...

Страница 425: ...essary to perform steps 2 through 8 of the prepara tion for visible index card typing before checking the parallel condition of the card carrier This is necessary because the position of both sectors...

Страница 426: ...REFERENCE MANUAL ATTACHMENTS Figure 4 First Writing Line Stop Adjustment First Writing Una Stop Figure 5 Card Stop Adjustment 7...

Страница 427: ...CTRIC TYPEWRITER ATTACHMENTS MODELS A6 AND B6 CUSTOMER ENGINEERING REFERENCE MANUAL PIN FEED LIFT PLATEN INTERNATIONAL BUSINESS MACHINES CORP NEW YORK 22 N Y Form 25 5000 0 Pin Feed Lift Platen sectio...

Страница 428: ...Copyright 1951 International Business Machines Corporation 590 Madison Avenue New York 22 New York Printed in U S A March 1951 Form 25 5000 0...

Страница 429: ...e THE KNIFE HOLDER ASSEMBLY serves two purposes 1 To furnish an edge on which to tear off the completed form 2 To hold the paper securely on the platen pins whether the platen is in the raised or lowe...

Страница 430: ...o limit the upward travel of the platen so that the upper arm will not travel past its toggle point Figure 2 Feed Roll R lease Cam Feed Roll Releas Lever Assembly Figure 1 Paper Release Adjustment THE...

Страница 431: ...complete form then raise the platen and push the carbon back until contact is made with the shift stop The stop is again picked up and moved back until the desired amount of carbon to be destroyed is...

Страница 432: ...t the pins be centered Figure 4 3 THE DETENT ROLLER is adjust two ways a Rotate the detent clamp on its shaft and lock it in place to maintain sufficient pressure to hold the platen in position Figure...

Страница 433: ...should be formed to permit the pins of the platen to clear the card holder with a mini mum clearance The remaining adjustments of the card holder are the same as those of the standard machine cov ere...

Страница 434: ...operation of the pin feed mechanism The spring under the actuating shaft arm and rear feed rolls may be removed if the feed roll release lever will not remain in a released position THE FORMS CARRIER...

Страница 435: ...IBM ELECTRIC TYPEWRITER ATTACHMENTS CUSTOMER ENGINEERING REFERENCE MANUAL FORMS LINE SELECTOR INTERNATIONAL BUSINESS MACHINES CORP NEW YORK 22 N Y Form 25 5006 0 Forms Line Seledor section only...

Страница 436: ...Copyright 1957 by International Business Machines Corporation 590 Madison Avenue New York 22 N Y Printed in U S A Form 25 5006 0...

Страница 437: ...never necessary THE ACTIVATOR STOP or stops are screwed into any of the 18 positions located on a ring on the outside of the frame cover assembly A stop called a first activator stop contains a rounde...

Страница 438: ...emove the cover assembly from the main frame assem bly Figure 2 5 Mount the modified right hand carriage end cover and the guide upright Using the two long screws their collars and the short screw mou...

Страница 439: ...feed fingers on the front paper guide 14 Locate the cOrrect setting of the copy control lever The platen variable button and the platen guide lever should not be used after the form line selector is p...

Страница 440: ...first activator stop with pointer so that it will have 1 64 clearance with the activator in the depressed posi tion Figure 2 17 Add additional stops as needed to position the platen on other desired w...

Страница 441: ...4 1 4 51 2 5 60 2 5 1 2 66 2 6 36 1 7 42 1 7 1 3 44 1 8 48 1 8 1 2 51 1 10 60 1 11 66 1 12 72 1 LUBRICATION Oil with ET oil No 6 the following places Crank handle rivet Platen Bearings Grease with IBM...

Страница 442: ...ve the frame cover assembly from the frame assembly Figure 4 4 Install the frame assembly on the studs of the right hand lift arm assembly Figure 4 5 Remove the right hand platen knob and adapter 6 In...

Страница 443: ...IBM ELECTRIC TYPEWRITER ATTACHMENTS CUSTOMER ENGINEERING REFERENCE MANUAL HEKTOWRITER INTERNATIONAL BUSINESS MACHINES CORP NEW YORK 22 N Y Form 25 5009 1 Hektowriter section only...

Страница 444: ...Copyright 1957 by INTERNATIONAL BUSINESS MACHINES CORP 590 Madison Avenue New York 22 N Y Printed in U S A August 1959 Form 25 5009 1...

Страница 445: ...type clamp on the right end of the margin rack to prevent the margin stop from being moved beyond the range of the mar gin set finger 3 Relocate the right tab rack fulcrum wire stop to the left of its...

Страница 446: ...l l A C j tJ it 0 t Connect Emitter Wires Here Longest wire to most remote point Green Black Condo W Black c c C J ET r Switch z c us C J us c C E III Z II Z III IE II...

Страница 447: ...etch tightly c Replace the screws removed in step a above This will stretch the ribbon guide even more 9 Mount the knurled bearing screws loosely into the ends of the front rail leaving about clearanc...

Страница 448: ...y control lever may be moved to compensate for the extra thickness of the Hektowriter ribbon and its guide For best results a typewriter ribbon of thin silk or nylon should be used Thick cotton ribbon...

Страница 449: ...take up spool while the supply spool is held fast Check by wrapping a string around the take up spool and pulling it with the spring scale AdI lng Screws fridion Spring and Holder Assembly Figure 3 I...

Страница 450: ...d fast by the stationary brake with the armature dropped Figure 4 Ribbon Guide Aooembly Roller Magn Unit Adjusting Screws Figure 4 Stationary Magnet Unit Assembly 7 AUXILIARY CARRIAGE MAG N T UNIT AS...

Страница 451: ...teral wings of the auxiliary carriage It must have enough tension so that it does not move up or down when the platen is turned in either di rection The guide may be stretched as indicated in the inst...

Страница 452: ...e cover unscrew the knurled spool retaining nut and take off the upper and iter mediate spool flanges 2 Set the ribbon and core assembly on the lower spool flange The ribbon is held by a pin which ex...

Страница 453: ...ckwise while braking the lower spool flange with the brake lever projecting from below Shortly before the ribbon is taut lift it between the bypassed brake shoe and the opposite rubber pad Hold the ma...

Страница 454: ...ent may need service on occasions The trouble can be analyzed as electrical or mechanical and may show up as either a complete failure to space or as a partial spacing or crowding of characters on the...

Страница 455: ...8 1 I J 1 il 14 0 E 0 f j cu I 0 L _Nl 0 i l i cU r of j l OIl 0 o u i D 1 I t l I Figure 7 AC Wiring Diagram terrupted somewhere between the connecting point of the Hektowriter cable and points D and...

Страница 456: ...itor circuit This circuit may be checked as follows 1 Disconnect the 50 ohm resistor at point G and measure its resistance value with an ohmmeter NOTE Do not merely make a continuity check of this res...

Страница 457: ...IBM ELECTRIC TYPEWRITER ATTACHMENTS CUSTOMER ENGINEERING REFERENCE MANUAL HEKTOWRITER INTERNATIONAL BUSINESS MACHINES CORP NEW YORK 22 N Y Form 25 5009 0 Hektowriler section only...

Страница 458: ...Copyright 1957 by INTERNATIONAL BUSINESS MACHINES CORP 590 Madison Avenue New York 22 New York Printed in U S A June 1957 Form 25 5009 0...

Страница 459: ...re 2 INSTALLATION Figure 2 IBM Hektowriter Attachment The Hektowriter attachment may be field installed in 0 8 of an hour Steps in the installation procedure are outlined below 1 Replace the carriage...

Страница 460: ...rated by pressing and releasing the two pairs of detent levers projecting at the front of the auxiliary carriage Figure 2 For hectowriting feed a master sheet into the carriage as usual A thin backing...

Страница 461: ...connects both the typewriter and Hektowriter to the power supply When the auxiliary car riage is tilted up by releasing its latches it automatically raises the paper bail and opens a microswitch cutti...

Страница 462: ...writer attachment so that the typed characters are centered on the ribbon at both ends of the carriage Figure 5 3 RIBBON FRICTION DRUM The friction drum on the intermediate spool flange of the ribbon...

Страница 463: ...shoe should clear the brake pad by a maximum of 016 Adjust by means of the brake shoe adjusting screws The ribbon must be held fast by the stationary brake with the armature dropped Figure 7 Ribbon G...

Страница 464: ...PLASTIC RIBBON GUIDE This guide is mounted be tween the lateral wings of the auxiliary carriage It must have enough tension so that it does not move up or down when the platen is turned in either dir...

Страница 465: ...it toward the right through the deflector rolls ribbon guides and brakes on the auxiliary carriage but by pass the stationary brake Figure 9 o o o Id Ploton Fi UTe 9 Ribbon Threadin Dia Tam 5 Attach...

Страница 466: ...ghtly lubricated on their bearings pivot points and friction faces with IBM oil No 6 Avoid excess oil and keep lubricants off rubber parts and clutch surfaces Each inspection check and adjust the clea...

Страница 467: ...f t s lib t I 110 130VAC to 0 Oisconnedor Motor 1 Impulse Emitter Motor Switch Micro Switch o E G so ohm 5W Auxiliary Carriage 24MFD A B 250 V oD m II m oD m Z n m n z m Z en...

Страница 468: ...nt D and E the rectifier is probably burned out A burned or burn ing selenium rectifier gives off toxic fumes with a repulsive odor and can be detected in this way 2 If there is no voltage between poi...

Страница 469: ...ELECTRIC TYPEWRITERS MODELS A2 AND B2 CUSTOMER ENGINEERING REFERENCE MANUAL PARTIAL CARRIAGE RETURN INTERNATIONAL BUSINESS MACHINES CORP NEW YORK 22 N Y Form 25 5001 0 Partial Carriage Return section...

Страница 470: ...Copyright 1957 by International Business Machines Corporation 590 Madison Avenue New York 22 N Y Printed in U S A Form 25 5001 0...

Страница 471: ...ing bell crank on the rear frame section As the No 1 carriage return key lever is being depressed to release the cam a link on the rear end of the key lever moves a transfer lever against a selector l...

Страница 472: ...tch The down ward travel of the selector lever is checked by an overthrow stop which is operated by the No 2 transfer lever With the selector lever in this position the margin lever will move just hig...

Страница 473: ...ble This will allow the selector latch to become engaged before the cam is released and guarantee proper carriage retum 3 THE CAM LINK to the clutch lever should be adjusted to just span the distance...

Страница 474: ...der Operating Lever Released Cam on High Point 6 THE ECCENTRIC ON THE MARGIN LEVER is adjusted for 010 015 clearance between the air cylinder lever and the air cylinder latch when the margin lever is...

Страница 475: ...r in the unlatched position and with the margin lever away from a margin stop Fig ure 2 8 ADJUST THE SELECTOR LATCH by moving its ful crum stud up or down in an elongated hole With the overthrow stop...

Страница 476: ...c to its lowest position and tighten the locking nut Also unhook the short link between the margin release key lever and the margin release bell crank The final adjustment of the margin release cannot...

Страница 477: ...ver is fully depressed Check that the overthrow stop does not choke off the No 2 key lever through the selector lever form the stop if necessary Be sure that the overthrow engages the selector lever w...

Страница 478: ...lease past the extreme left hand margin stop may be obtained Fig ure 8 Maroln Lever L Q 7 Margin Release Lever FiAure 8 MarAin Release Adjustment 15 ADJUST THE RIBBON CAM RELEASE LINK from the space b...

Страница 479: ...IAGE RETURN Adjustments I CLUTCH PLATE CLEARANCE REl ER to adjustment 18 Carriage Return Model Bl 2 THE AIR CYLINDER AND CLUTCH COMPRESSION SPRING REFER to adjustment 20 Carriage Return Model Bl TABUL...

Страница 480: ...Check lever Pawl Releos lever t 5 Rebound Check Slop 1 01S Tab Inl rlodt lev Figure 11 Tab Latching Adjustment S THE REBOUND CHECK STOP should be formed so that when the tab lever is latched the tip o...

Страница 481: ...o the tab lever 7 THE TAB INTERLOCK LINK must pull the interlock lever far enough to cam the rebound check lever down below the level of any set tab stop when the carriage re turn is operating Unlatch...

Страница 482: ..._ o Fillure 13 Rebound Check Adjustment 11 THE TAB RACK should be so positioned that the front face of a set tab stop is parallel to the tip of the tab lever and so that the carriage end plates are no...

Страница 483: ...tic Carriage Return 3 First Writing Line Form Positioner 3 Margin Stops 3 Type Segment Support 3 Amount Keys 3 Block Numerals 4 Ditto Key 4 K 4 Carriage Return Key Button 4 Selective Tabulation 4 Page...

Страница 484: ...Copyright 1953 by International Business Machines Corporation 590 Madison Avenue New York 22 N Y Printed in U S A May 1955 Form 25 6008 1 I...

Страница 485: ...it upward until the platen latches The platen rotation will be automatically stopped and the completed form will be tom off At this position the next form to be typed will be at the first writing lin...

Страница 486: ...t lock key button SELECTIVE TABULATION A tabular key button located on the right side of the keyboard in the normal carriage return position and of the same size and shape permits one tabulation per k...

Страница 487: ...s of the actuator levers and cause a normal carriage return after each amount key is depressed The automatic carriage return from the end of the line uses the standard line lock bracket The drag link...

Страница 488: ...top of the skip tab cam on the left side of the machine Adjust the cam stop for the right hand tab cam to obtain a conventional cam adjustment as described in the gray manual Adjust the operating lin...

Страница 489: ...assembly is mounted on a stud on the left hand carriage inner end plate Figure 2 An eccentric nut at the pivot point of the line finder stop pawl provides an adjustment of the stop pawl with the slot...

Страница 490: ...switch With the page end lock bell crank in the slot of the page end cam ring adjust the clevis to lock the keyboard When any amount key lever is depressed the carriage return key lever is also depre...

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