Bulova Series 218 Service Manual Download Page 4 | Manualshive

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Summary of Contents for Series 218

Page 1: ...ACCUTRO Service Manual N 7 V fc l i Is IV j L by BULOVA...

Page 2: ...17 09 081 7M 17B 756 0ia 085 410 1 102 373 74 002 70 710 1 401 131 1 473 153 1 122 1 3 S71 0SU 1 096 747 1 124 413 TBI 009 797 051 84D DH BS4 13G 953 U9 1 064 230 1 074 104 112 299 333 403 142 171 301...

Page 3: ...xing Mechanism Inspection and Adjustment 15 Testing Power Cell 19 Testing Electronic Circuit 19 Identifying Defective Coil Assembly 20 Checking the Train for Freedom 20 Hack Mechanism Inspection and A...

Page 4: ...esented on pages 12 and 13 The firs step in using these procedure is lo estuhlish the symptoms of Ihe trouble In many in RtanQM Ihin inforiiiatiun cm he obtained only from the customer Therefore WHEN...

Page 5: ...Opening The Case Use special Inckmy...

Page 6: ...ll coil assembly hus not been damajtr 1 through improper installation Of a Power Cell attach cell strap by loosely installing coil form screw with its mutilator through cell strap making certain cell...

Page 7: ...istance equal to one division changes the rate of the ACCUTRON timepiece by 2 seconds per day Regulation for as little as x x second per day can be made by rotating one of the regulators V division Th...

Page 8: ...tating a regulator away from the center of the movement will cause the ACCUTRON timepiece to run slower rotating a regulator toward the center of the movement will cause it o run faster m HICULAU SECO...

Page 9: ...aw stem Fig 6 a Remove movement from case and place in movement holder b Insert stem and tighten setting lever screw CAUTION Do not push stem beyond point of engagement with pin on selling lever See S...

Page 10: ...Replacing Movement In Case r...

Page 11: ...CCUTRON Series 210 tn well The Model COO Test Set illustrated in Fin ID is BtWrflllftl nnil in servirirn th ACCITKON inovetiii nl The T l Sel is n qmred lo perform Lhree very important I unrlians i It...

Page 12: ...appropriate induced voltage for important Indexing Mechanism Adjustment for both the 214 and 2111 movements 4 A 2 wire lend wilh a lab end and a plug end for attachment to the 218 ACCUTRON movement an...

Page 13: ...maximum penetration power available in Olnuonie cavitation generated by nickel transducers The WATCMMASTER ultra sonic Walch Cleaner is recommended nit recorder The rale of the ACCUTRON tuning fork ca...

Page 14: ...HA GAINING OR...

Page 15: ...position 2 Power Cell voltage km 3 Hack mechanism out of adjustment 4 Indexing mechanism out of adjustment 5 Mechanical inter ference with free vibrations of fork 6 Mechanical blockage of train 7 Dir...

Page 16: ...be done efficiently with an eraser and wiping any while adherent material if present from the Power Cell Such material may sometime push the cell strap away from the Power Cell and thereby break elect...

Page 17: ...ent of the index and pawl jewels and their interrelation Details of the step by step procedure necessary to properly accomplish these adjust ments are to be performed in sequence as follows Note Perfo...

Page 18: ...fingers arc UOftftttSfld I disengaged from wheel there will be n slight CUrVt Both o tin p wels itui ti he perpendicular to liir wheel Kitlu r jewel can he made papadlCUbu to the plane of the indr whu...

Page 19: ...ex gage and index finger See Fig 18 The gage must not touch the finger but should preferably be very close say within one index finger thickness This as you will see will make it easier lt perform ste...

Page 20: ...Will tD 10 the nrr 1 l Teal Sei turn nii iry switch to LOW AMPLITUDE position If tuning fork iIim mil tkcgin to vibrate ofl WVOM Bg will hr indicated on ui li r id IVr l Sri Should Ihin OOOUT Up HMVtn...

Page 21: ...ne with the authorized ACCUTRON Test Set or wilh a high resistance voltmeter hnvtng nol lens than 10 000 ohms per volt crudtivity such uthe ACCUTRON Power Coll Tetter Caution Never use substitute cell...

Page 22: ...fied by whether the current indicated by the motor a Remains xero Replace the cell coil assembly b Becomes excessive RepI ace the compnnent coil assembly INDD NHEa Checking Ihe Train for I reedom This...

Page 23: ...moving hands dial and hour wheel a Pull slum oul setting position b Remove hands c Remove dial 2 screws d Remove hour wheel with dial washer Fig 23 IMPORTANT H nirs to Ideality mode stamped cm movemen...

Page 24: ...nd casing spring a Loosen cell strap hold down screw and coil form screw b Turn cell strap counterclockwise and remove power cell c Remove casing spring 2 screws A 1 CASK SPRING power cat COL SIRAP CE...

Page 25: ...MAY 24 1363 INDEX COLLET PAWL COLLET 3 Disengaging index and pawl fingers a Push stem in running position b Use collet adjusting tool to rotate index and pawl fingers away from index wheeL Fig a i 23...

Page 26: ...Removing train bridRK and Irain wheels a Remove train bridge 4 screws b Remove train wheels FOURIH WHtEl TRAIN BRIDGE SECOND WHEEL INDEX WHEEL Fig 2fi...

Page 27: ...a Rotate pawl finger assembly clock wise 180 degrees to clear timing fork and pawl bridge pivot screw b Remove tuning fork and coil assemblies 6 screws CAUTION Do not pry at base of tuning fork Use a...

Page 28: ...Removing pawl bridge and hack lever a Remove pawl bridge and cam 2 screws b Remove hack lever and hack lever spring HACK LEVER HACK LEVER SPRING PAWL BRIDGE PAWL BRIDGE CAM Fig 23 26...

Page 29: ...MINUTE WHEEL YOKL ClUTCH LEVER CLUTCH LEVER SPRING 7 Removing yoke clutch lever and setting and minute wheels a Remove yoke 1 screw fa Remove clutch lever spring and clutch lever c Remove setting whee...

Page 30: ..._ Removing fourth bridge and center wheel assembly a Remove fourth bridge 2 screws b Remove center wheel assembly FOURTH BRIDGE CENTER WHLEl ASSEMBLY Fig 30...

Page 31: ...SLUING LEVER Removing setting lever stem clutch wheel center second brake and ground plate a Remove setting lever screw b Remove setting lever stem and clutch wheel c Remove center second brake sprin...

Page 32: ...n the permanent magnets on the linn of the tuning fork Inspect the fork carefully after cleaning anil if this has occurred any particles ih ii linging thi mtgDtto can be removed with masking tape NO P...

Page 33: ...ly proci cliirv taporlaal lubrication instruction nrr rsquiHd fbl the ACCUTROX Series 218 TlttM Mfl H follows M iit I niji i Syi u Vtaeo Lube M Mo btu5 OL207 SpKrirtl Lubrfflal With Molybdenum Dlflulf...

Page 34: ...g lew nM l letting lever suraw b Lubricatr Hi m square and pilot M Use lubricant sparingly c Replai e center second brake spring l tcrew d Replace ground plate 1 scrrw Mocbius OL 207 Special I nbrican...

Page 35: ...bly and fourlh bridge a Lubricate center Wheal ai M mbly and center tube M Use lubricant sparingly b Replies center wheel assembly c Replace fourth bridge 2 screws Mocbins OL 207 Spccial Labricanl wil...

Page 36: ...minute wheel and setting wheel c Replace clutch lever and clutch lever spring d Replace yoke 1 screw e Lubricate yoke M Moebius OL 307 Spccial Lubrican wi h Molybdenum Disulfide CAUTION If clutch lev...

Page 37: ...d pawl bridge a Roptecc hack lever b Replace hack lever spring wilh short leg toward liiver as shown c Lubricate Slem pilot V where it touches hack lever Use lubricant sparingly d Replace pawl bridge...

Page 38: ...l strap NOTE Check that cell strap is prop erly centered on the insulating post of coil form before tight ening screw c Rotate the pawl finger assembly counterclockwise to bring the pawl finger adjace...

Page 39: ...eels CAUTION MAKE CERTAIN THAT PAWL FINGER HAS BEEN ROTATED AS PER STEP 5c PAGE 36 TO AVOID DAMAGE TO PAWL FINGER IN AD DITION MAKE CER TAIN THAT BOTH THE INDEX AND PAWL FIN GERS ARE DISEN GAGED FROM...

Page 40: ...c Pull stem out setting position d Replace hands NOTK It is necessary to support the center second upper cap jewel on a proper fitting stump in a staking set when replacing center second hand e Perfo...

Page 41: ...en cell strap and coil form screws 9 V See page 8 steps 1 and 2 Regulation following repair 10 IV After the movement has been replaced in the case always check regulation adjust if necessary to assure...

Page 42: ...ly Mmuic Hand To Sail Dial 167 Lower Jewel for Fourth Wheel 186 Fork Spacer 1 Hour Wheel 111 Minute Wheel and Pinion i 1 2 Ind Wheel and Pinion Hour Hum To Suit IJiol lOO Upper Bushine or Third 4iid F...

Page 43: ...k Lever Assembly 1 Indo FirtRcr Assembly JU Pawl Fingiir Assembly 404 Train Bridee jmponenl Coii Assembly 13 Cell Coil Assembly Cell Strap HoId down Screw Lead Si rap Sen w 304 Cot Lead Sund Oil 8 Kou...

Page 44: ...tions For all other detail concerning service und repair instructions for Ihu basic Series 218 ACCUTRON move ment refer to l ari H The parts lint contained in this Section lists the replacement parts...

Page 45: ...Removing hands dial and hour wheel a I ull slem out setting position b Remove hands c Remove dial 2 screws d Remove hour wheel wilh dial washer n a IMPORTANT Be rare lo indicat e awle number ngnv d on...

Page 46: ...MAY t date trip sprwg i s OWE INDICATOR DATE INDICATOR DETENT DATE INDICATOR DETENT SPRING DATE INDICATOR TRIP ARM DATE TRIP WHEEL ASSEMBLY DATE CORRECTOR DATE CORRECTOR DETENT zr STEM Fig 4 i...

Page 47: ...cation Procedure 1 page HZ c Lubricate date trip wheel pivnl and replace dale Irip wheel assembly and date indicator trip arm Use lubricant spaiine ly d Oil dale trip arm pin l tJse lubricant sparingl...

Page 48: ...ward until dale indicator jumps to the next date cL Replace hands exactly at 12 o clock NOTE It is necessary lo support the center second upper cap jewel on a proper fitting stump in a staking set whe...

Page 49: ...cator DetaolSpniw X i Dale Trip Wfcod nnlily 9 P cT c ic X V 20 8Je5 71 Data linlii ii il S ilv Ih n rriur nJ Crown location ll Cciilur Whoul Aunpiiiljly flHM Minute Wli l Aa irihU K1 Dii hTn i Arm 58...

Page 50: ...cation 45 Reassembly 45 Date mechanism repair of 42 46 Diagnostic chart 12 13 Dial Removing Basic 218 21 Removing model 218D 43 Replacing Basic 218 38 Replacing model 218D 46 Disassembly 21 29 Disasse...

Page 51: ...er 11 Reassembly 32 39 Reassembly Oate mechanism 45 Regulation 5 6 Regulation following repair 39 Regulators 5 Service kit 9 11 Servicing chart 12 13 Selling lever Removing 29 Replacing 32 Selling whe...

Page 52: ...I I I mthiio IB u I...

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