Brother Model KH--830 Service Manual Download Page 30 | Manualshive

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Card Feed Lever Adjustment
Turn clutch cam A in either direction so that the card feedcam pushes the
card feed lever upward. Then push down the right side of the card feed
lever until the ratchet begins to move, and lock with step screw.

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Summary of Contents for Model KH--830

Page 1: ...Model KH 830 Model KR 830 Model KL 116 Model KHC 820 Model KRC 830 ...

Page 2: ... selector plate holder 24 Disauembling the needle selector unit 26 Assembling the needle selector unit 27 Assembling the needle selector plate holder 29 Assembling the needle selector unit in the needle plate holder 30 Assembling the needle selector plate holder in the body 31 Inspection of needle selectorfunction 34 How to adjust the macbin e body 35 How to adjust L carriage 47 Knit ader KL 116 4...

Page 3: ... tuteh wlteel I I IRotation of bevel JWJ Half tum of cud reader I rdeue com l IRotation of roury cam I IUp and down movement ofl L card reader le plate 1 I IUp a nd dbwn m ment ofl I cud reader I I I Sideway movement of card reader I Sid eway movement of card I signal ncr Sideway moY nt of needle selector plato Selectkm of needle by Medlel selector plate 1 Positioning of need le by j camaae ...

Page 4: ...ry enable you to locate the cause of trouble with eue If It lhould occur Also you wiii be able to explain the detilled mechaDIJm of the machine to your clients CARRJAGE I Stitch cam and raisinscam 1 1 Stitch cam The stitch cam moves the needle back and forth thus making ruches 1 2 Raising cam The raising cam changes the route of the needle in the B position 2 Cam button The cam button is used for ...

Page 5: ...o the selecting cam thus holding the Medles 7 Tuck cam The tuck cam reducej the am01mt of upward thrust of the needle In B and causes the needle to hook the next stitch without pull lng off the latch from the fml stitch in ordtr to produce double stitches 8 Sepuation cam The separatioo cam separates the needle which is caught by the needle selecting plate coupled to the punched card and the needle...

Page 6: ... open hole to the left The cam has lobes spaced at 1 24 pitch around the circumference I 8 Cud feediDg cam 1 The card feeding cam is driven by the rotary motion carried from the belt clutch wheeL When it is rotated tum the card feeding lever roUer rolls over the cam lobe and thus the card feed lev is made to move up and down 9 Cud reader releasinal cam The card reader releasing cam is rotated tum ...

Page 7: ...moved up just before the combs by the main cam The feed hook holds this stitch and sepa rate the needles into B and D position Needles In D position While staying in 0 po ltlon the needle is caused to inte t with tbc needle in B position by the feed hook and thon the needle is raised by the main cam IUitil the needle btch panes the stitch After the needles intersect with p te cam C they are separa...

Page 8: ...e home position even if held down it is pushed back to the B position by the separation earn attached to the carriage MaiP body I If there Is an open hole the card reader ia moved upby the spring 2 The card reader is moved to the left by the needle selector cam 3 The signal lever is moved to the left by the card reader 4 The signal lever pivots upon A see Fig A and the needle selector plate moves ...

Page 9: ...two right and left carriage cover clamp screws 2 2 Pun off the carriage cover upward Then the H C L knob the 7 Fig 1 Name ofparts D Handle Carriage cover 1 H C L knob 2 Plain lever knob 3 Change knob Stitch dial cap plain lever knob and the change knob will come off 2 3 Pull off upward the H C L knob spring mounted under the H C L knob 3 Removing the stitch dial 3 1 Pull off the stitch dial cap up...

Page 10: ...ipper clamp screw and the left nut usinga box driver then puD orrthe tripper upward 8 Fig 2 Row counter tripper Handle settingbase Uppor sUde plate 5 2 Take care nor to lose the collars placed beneath the row counter tripper 6 Removing the handle setting base 6 1 Remove the two right and left clamp screws and then the leaf spring 6 2 Remove the four right and left clamp screws 7 Removing the upper...

Page 11: ... cam I I rft 2 i 4 I Name of partS Needle adection manse spring Stitch cam guide plate spring Tuck cam operaling plate Tuck cam 1pring Chango plate MC cam sprtog Chanse plate pring Chanae plate guide stud ConMetingplate spring Rear plate Clamp nut I I I I I I I I Fig 3 1 II 2 Remove the right and left ends of the chan e plate spring from I the change plate 11 3 Remove the nutJ from the clwtJe plat...

Page 12: ...er side of the cant ge move the llCtews after removing the nuts Fig 4 10 Name of parts Froat slide plate Carriaae front leg Guide c m A noembly Guido cam B CuldecamC Stitch cam MC carn Guide cam D Needle teloctlng cam Guide com F Separation com Tuckcam Carrla e rear leg Connecting plate Stripe adjuster plllte ...

Page 13: ...clamp screw will come off 19 4 Remove the right part of the stitch cam in a similar way 20 Removing the stitch cam plate 20 1 Remove the snap ring 7 and wather from the stitch cam plate shaft and the cam plate will come off See Fig 4 21 Removing guide cam D 21 1 Remove the left guide earn D clamp screw and guide cam D the guide cam Dshaftand the clamp screw will come off 21 2 Remove the right part...

Page 14: ...at the ring part ofthe valve cain BsprinJ Note Turn me cam BIDside theNb stitch cam 13 MountinuuldecamA Mount guide cam Aand slide cam clamp wUh right and left screws 14 Mounting the carrlaee front leg lishten the two screws provided near the center of the carriaee front leg 12 IS Put the front sUde pbte on the carrlo ee front leg and clamp with s et screws The longer screw Is used for left side N...

Page 15: ...Combine the ri3bt and left pans olaulde cam D and the guide am D shaft collar and clamp with sc 9 Mountinlthe stitch cam auJde plate 9 1 Mount tha stitch cam guide plate from the outer aide of the carriaae Put waahers on tha right and left parts of the stitch cam ahaft bearing from the back side of the carriage and stop with snap ring 7 10 Mounting the stitch cam 10 1 Fit the left part of the MC c...

Page 16: ... 4l Rear plate J Nut CoiUifttinB plate sprlJ a Chafleeplate 1 Change plate guide stud 3 Change plate pulling spring il 4 MC cam spring Tuck cam operating plate 8 Sritcb cam gulde plat spring Needle selector spring Fig 8 Note Tbe cllJ nae plate the ri ht and ldl parta ofthe MC cam and the riJht and left parts of the MC knitt irlt chonae cam should rerum under r preilllre after beiiiJ pressed The ch...

Page 17: ...counter tripper onthem and clamp with nut on the left side and screw on he r ighl side Name ofPuts Upper slide plate Row counter trippct eb a e am tltitton uRl i 2 Rauins cam dumB sprlll f ig 7 24 Mountina the hondle ba 24 1 Clamp the rilbt and left puts of the handle base with four clamp screws 24 2 Clamp the riS lt and left puts of the handle lock tprina with screws 25 M untins the cam button un...

Page 18: ...ll I I Fig 8 27 Mounting the carriage cover Name ofparts 8 Stitch dial stitch dial pr rcap 1 HoldJng cam lever 2 PWn lever knob 3 Chanp knob 4 Carriage c r 8 Handle 27 1 Put the holcllns cam lever spring on the holdJng cam lever shaft and mount the holdJng cam lever 27 2 Put the plain lever knob on the cam button unit 27 3 Put the clunse knob on the knob shaft Be caref JI ofIts potltion 27 4 Mount...

Page 19: ... the needle selection cam is fully lifted and then quietly lowered wilh your finger the cam hould return to its original position without fail under spring pressure 6 Tuck cam operation 6 1 When the right or left part of the cam button is depressed and when the end of the right or left part of the cam is fully lifted and then quietly lowered with your fillger the right or left part of the tuck cam...

Page 20: ...aising cam and the separating cam 2 Between the tuck cam plate and guide cam C 3 Between guide cam Cand slide cam 4 Between the sub raising cam and guide cam B S Between guide cams Aand D 6 Between guide cam D and the needle selecting cam 7 Between guide cams Aand B 8 Between guide cam F and the separating cam 18 Fig 9 ...

Page 21: ...ag6 p a t9 get pro position The sinker plate s oppers ar dlscontlnued for this model 2 Mounting dlmenlliom ofsinker plate The linker plate should be I i8 Sm m apart from the ca rrlage rear leg If it is not correct loose screws and adjust MoulinJdlmemioos olyarn feeder I The yam feeder should be 120 Sm m apart from the carriage rear leg Vertical adjuat at of the liaker plalle I Fit the caniage on t...

Page 22: ...ome even Then tighten the stripe adjusting plate clamp screw Note The length difference at the stitch cam bet n a and a should not exceed 0 35 mm Hint When the stitch dial is set at 5 the length at the stitch cam 32 5 mm 2 After the adjustment be awe to check it by knitting plain stitch using a medium yam and with the stitch dial set at s Mounting dlmensions ofpjde camA I loosen the right and left...

Page 23: ...ight lift and talce It off 1 4 l lft and pull off the direction indicator plastics 2 Removing the putt box 2 1 Remove the lld of the parts box and take out the accessories Remove one parts box clamp screw 2 2 Slide the part box to the rigbt lift and take it ofl 21 3 I Remove the two case reinforcingplate A clamp SCTews and one case reinforcing plate B clamp screw 3 2 Remove the four right and left...

Page 24: ...Name ofplllts 1 Pulley leafspring pulley leafspring clamp screw D 2 Pulley bearingclamp Me asure the distance between the needle selector plate holder and the needle b d lower plate with caliper Points of measwement right and left onds and the oentu Fig 15 screw Meuurement of the distance between the needle aele tor plate holder and the le bed lower plate Measwe the above distance with slide calip...

Page 25: ... machine proper you can detect causes and symptoms of their defect only by removing the card reader support and card reader spring presser S Remotms the needle selector unit with the needle selector plate holder S l Remo e the twobed tettingclamp screws S 2 Remove the two stay center clamp screws four left and right st1y clamp screws the needle aelector unit and the needle elector plate holder wil...

Page 26: ...springs take note oftheir positions L3 Remove tho E shaped snap ring 2 5 from the needle selector 3 8 6 4 2 Name of parts 1 7 I Signal lever holder clamp erew 7 2 Needle selector plate 7 3 E shaped snap ring 2 5 Needle selector plate holder Fig 18 plate shaft square on the rear of the needle selector plate holder and remove the shaft 1 4 WhUe sliding the eight needle selector places one by one to ...

Page 27: ...r stopper plate Card feeding cam 25 Name ofparLS I Needle selector unit clamp screw 2 Card reader spting presser ptate clamp screw 1 3 Spring plate clamp screw 3 Spring plate t 4 Belt guide 1 5 Clutch spring 6 Clutch cam assembly 7 Card feeding roller assembly _ 8 8 Card feeding knob Intermittent feeding lever 9 Card feeding lever 10 Card reader release spring II Card guide clamp screw ...

Page 28: ... guide plate to the rigltt 8 S RJ move the clutch spring 8 6 Remove the map ring located under the clutch shift fitted Into the clutch wheel Now the wuher card reader release cam clutchwheel aet and clutch cam A shaft can be removed Also the card feed cam bevel sear stopper plate in the needle selector unl _can be removed 8 7 Remove the card feeding roUer 8 8 Remove the E eiip 2 located under the ...

Page 29: ...d RadtJ release cam 3 Cud feed i na knob CD 4 D 4 Cud feedlns lever 1 lntennit nt feoclinJ lever Fig 21 Card feed i na cam How to adjust the tary cam and Clutch wheel i P o needle se nto the bact TT UPPER VlEWf the cut pordo n clutcb wheel with top of the roWy cam shaft Fig 22 Fig 23 ...

Page 30: ...ng lever and change lever from top of the needle selector uint Insert the card feed adjusting plate into the needle selector unit and secure the card feed lmr with step screws Mako tha the intermittertt feeding lever should go between the feedJng lever and round plate Please refer to Fig 42 on page 40 Insert the card feed cam and bevel gear stopper plate into the needle selector unit frorn the rig...

Page 31: ...e rer OJ tion bolo Fig 24 t Shaft B I Noedle selector plate lhaft A Needk oelector plate bolder truer needle doctor plato Into thil silts Fig 25 2 1 Install the needle selector plates on the needle selector plate holder in the order of 7 S I 3 8 6 4 and 2 Align the needle selector plates with the sUis of needle selector plate shafts A 6 pieces then insert the needle selector plate shafts Band secu...

Page 32: ...th the reverse side front and insert 2 4 card readers into the needle selector unit Be sure to place thecard reader II 011 the right side ofthe rianaJ lever Remove the screws which war secured temporarily at the step 1 2 and temo e the spring plates Fir the card guide pin holder plastic to the card reader holder 3 6 30 Lonprone in needJe uDlt hole plate and insert right and left spring plate into ...

Page 33: ...ight stays each and two clamp screws for bed setting p_late temporarily and after making adjustments mentioned below fasten the needle selector formally FittiD of lhe needle selectOI plate bolder Fit the needle selector plate holder according to the measurement made with a Sliding calipers as described io Figure 29_ Name of parts o Stay fitting screw 4 2 Machine clamp screw I Fig 30 Stay center St...

Page 34: ...nnecting pin into the concave part of the puUey 2 On the side of the clutch wheel pasa the belt from your side by fittina the belt coJtDeCting hole into the concave 32 3 Pulley leaf spring 1 binding screw Concave part ofclutch wheel B jo IE Fig 32 part of the clutch wheel to connect both ends of dii belt with eacll other 5 2 Stretch the belt to such an extent as there is no slack and 5 3 g tten ri...

Page 35: ... body fitting plates onto the back side of the case with two clamping screws for right and left fittfn plates each 33 2 Lo VIIC r Cite Fig 33 Needle bed clamping screw Needle bed upper plate clamping SCJCW Case reinforcing plate clamping screw Machine body fitting plate clamping screw Accessories box clamping screw Direction indicator Needle selector panel clamping SCJew Card stop lever knob 7 I K...

Page 36: ...urately of 3 Automatic card feeding I That card readers come off completely from the I Make sure of I 4 by turning the clutch wheel clutch function at a time card roller and rotll cam by hand Tactile impression and visual obterva when roution ciirKtion of lion clutch wheel is changed 2 That the feed of card roller by meant of the Jatdtet is made accurately 3 That after the above mentioned actions ...

Page 37: ...g nuts Longitudial adjustment In this case keep it in mind that ifsuch nuts are tightened too Reference How to make fitting measurement of combs in the case of old models of lcnhtel l I 10t 310 L It CbdJ Fig 35 35 6 7 Fig 34 hard screwt will be twisted off Adjust measurement of fitting combs by use of a sliding call pers and fasten with clamping nuts Make fitting measurement of combs for old model...

Page 38: ...acrews for the needle retaining spring on the comb and the needle retaining spring will come off 6 Remov the needle retaining spring from the comb and puU out the spring 36 Fig 36 Fitting the needle ret inin aprinJ I Fit the needle retaining spring onto the comb and futon the needle retaining spring on comb with three binding screws for the needle retaining spring 2 Bring back the needles to B poc...

Page 39: ...time lag It causes wron needle selection Correct position of rotii am and clutch wheel telectorcam to side Cbeclc the pOiition Upper riew the CODC ft patt of the clutdlwbulju11 therofaly cam shaft Fig 38 When the flat part of r JII cam is placed horizontally the concave part ofclutch wheel muit bejust over the rotii earn shaft 2 1 Remove the timing belt 1nd belt sulde plate of the clutch wheel 2 2...

Page 40: ...ounting ofcard reader guide plate is not correct Position ofrotary cam is not correct 0 0 0 0 o 0 0 0 0 0 0 0 g 0 0 0 CJ I 0 0 0 or 0 0 0 0 0 ov Fig 1 3 1 Make the punch card for checkingas illustrated 0 it I 38 ...

Page 41: ... Fig 2 3 2 Insert the chec punch card and stt the starting line Confirm that all c ard readers are not in contact With any position of rotary cam 39 ...

Page 42: ...Loosen 3 screws Fig 3 1 1il 3 3 LooS n two screws for rotary cam adjusting collar and one for card reader guide stopper NOTE Do not take offscrews 0 11 ...

Page 43: ...mo loa the cud reader guide stopper movr the card reader guide plate to left hand side until the card readers softly touch the riaht side ofthe card reader guide window as shown in the filure Then futen the screw COld JOider Wde SlOf per 41 ...

Page 44: ... 5 Pusl down the card feedins knob to make the card leaders doWll then releate it The cud readers must Coot41 up by sprins pressure If the card teader does not come up by spring pressure repeat item 3 4 42 Fi 5 ...

Page 45: ... Fig 6 j 3 6 feed the punch card as shown in the figure One piece of card reader comes up J 43 ...

Page 46: ... 7 Turn the rotary cam so as to let the card reader in working position andforcefully push the rotary cam to left until the card reader touch the left side of the card reader guide window then lighten the two screws for the rotary cam adjusting collar securely In this case rotary cam adjusting collar must keep in touch with rotary cam holder plate ...

Page 47: ...ge where the card feed lever is raised uppermost 5 3 Looseo the clamping screw for card feed adjuster plate 5 4 PUsh down the left side of the card feed lever and sotp the card feed lever when tbe latchet feed is applied then tighten the clamping screw for the card feed adjuster plate 5 5 Loosen two clamping screws for the latchet stopper and push up the latchet to the full until a small gap 0 2 0...

Page 48: ...is not fed because of the intermittent feed le tr does not work smoothly Shoul4 wotk moothly Make the clearance between the lntermltteot feed rever and needle aelector unit body so u to make the lntermitti nt lever freely I Cautc 7 The needle is bent How to adjust Replace tho needle Opentlon ofc hanp lenr llhould be IJ IIt Fl 42 ...

Page 49: ...te cam 8 and fasten with clamping screws 2 1 By referring to figure 43 adjsu t the tip of the leafspoing so as to be bigbtened to the same level as that of the plate cam B 2 2 Although you may use a pincers or pliell in making such adjustments be careful not to cause such tools to rook the leaf spring locally 3 1 The feed hook is fixed with the feed hook clamping screw on the side ofthe sinker pla...

Page 50: ...lion 0 then inspect a gap between the sinker plato and the stem of latch needles When latch needles are found raised by the linker plate or there is a wide pp judae hit the sinker plate is crooked and adjust lhe crooked section 5 I Remove rfsht and left clamping screws for lhe L Carriage cover and take offlhe cover 5 2 Remove three clamping screws for main cam 5 3 From the back side of the L Curia...

Page 51: ...ooally Set the row counter l tripper at resting I p llllon to oporat6 Feed conncetoJ 1 1 Loosen two clamping screws 40S883001 I pee 1 2 B y moving the sheet button up or down adjust the incline Settlnt plato 486306001 2 pes ofthe sheet feeding gear shaft Theo fasten the searews Kll 588 Yes Stand Sarno as KL IIS lnsert the sheet into the Knit leader and check 406216001 I pee are requ Jod ocldi s ti...

Page 52: ...rip handle adjust to get the proper position ICK and KR needles meet u shown in the figure 1 5 Mter adjusting fasten two screws tightly l v I two_ r a 0 Fi8 49 I l SO 2 He lht orn bber bed Set the half pitch lever on H and bring fo trd 10 ach needles on both enc J of KH needle bed O eck the clelll Ulce bet llleen the back of the KH needle and gate pegs of KR bed J l I 7 m m is conect 2 1 By pushin...

Page 53: ...ng to the rigbt aeparate 3 3 After adjusting go back the deedlu to A pCiitlon and fasten both thumb screws 3 4 Futen the clamps for reinforcing ann Fig 51 The other models In case of attaching KR 810 to KH 820 Height The clearance between the back of the KH needle and gate peJ ofKRbed is 0 0 6 m m Distance The distance between the back of the KR needle and KH gate pegs js 0 0 6 m m In case of atta...

Page 54: ...Yes KH 830 Impossible lmpoasible I Impossible Possible but adjustment is required Yes D KH 800 KR 586 KH 588 KR 587 KH 588 KR IO JCH 830 KR 810 Bracket R Possible to attach the Possible to attach the See on page so s1 407005001 1pee Extension ralls by ro Extcmsion nu1s by re Bracket L placing the following placing the following 407009001 I pee parts parts Thumb screw Bracket R 408777001 2 pes 4862...

Page 55: ...ch or hook of the needle hits the yarn feeder or magJlet holder IE 1 1 6 1 141 5 KR carri age Mounting demension ofsub raising cam J4 S m m Demension between the sub raising cam and the rear foot of KR carriage Mounting demension ofrub slitch cam st 3 m m Demension between the sub stitch cam and the rear foot of KR carriage Please check when the KR carrlager does not slide on the needle bed smooth...

Page 56: ... view Chanprum Fig 55 When the chmger ann is bent or dropped please check the foUowiog dernensions u n I tt Extension line ortho boos Fio 56 l Colour ehanaer KRC 830 2 1 Position adjustment 2 1 1 Place the connected carriage at the left end of the needle bed Depress the No 4 changer button and move the canlage to right slowly until the separation plate separates the yarns completely 2 1 2 look at ...

Page 57: ...le is bent 1 Replace the needle See Instruction manual come out 2 Needle and rotary cam are not 2 Adjust rotary cam position in the right relative position UnneceSsary neelde sticks I I Oil has got between Medle I Wipe off the oil out in eighth cycle selector plates 2 Squeezed between signal lever 2 Replace needle selector unit presser and card reader guide I card signal lever does not move easily...

Page 58: ...e play 3 Replace front or rear legs of carriage 4 The holes on the needle bed lower 4 Replace needle bed plate has worn No needle selectionin I Poorly adjusted card feed 1 Adjust card feed l er 24th cycle I Card hole and card reader are not in position 2 Card reader holder plate has got 2 Adjust the gap to the normal level out of position reducing the gap of0 6mm between card roUer and caidguide 3...

Page 59: ...ion manual 2 Lcarriage wa not kept down 2 Operate Lcarri qe in the right way Drop stitches I Poor latch needle open tlon I Replace needle See lns Ction manual 2 Bent comb 2 Adjust comb teetlt 3 Feed ltoolc is out ofposition 3 AdjU5t both right and left feed hook 4 Cam is out of position position 5 Leahprlng is out of position 4 Adjust cam position 6 Separation cam does not work S Adjust leaf sprin...

Page 60: ...en right and left adjuster plate Lateral stripe Is produced I Carriage operating speed variation I Operate carriage at constant speed See Instruction manual here and there not 2 Poor yarn supply 2 Lessen tension spring tension stitched neatly r Right and left knitted I Comb teeth installed differently 1 Instal right and left comb teeth I differently in the same way Carriage sticks in Midway I Need...

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