Olympus OM-1 Service Manual Part 3 of 4
Contents
1. 3n OUTLINE OF REPAIRS OLYMPUS OPTICAL CO LTD 1 E 1 OUTLINE OF REPAIRS TABLE OF CONTENT FILM ADVANCE amp SHUTTER RELEASE MECHANISMS 1 2 3 12 13 14 15 Film advancement not performed smoothly Film cannot be advanced eMM nn 4 Shutter automatically released immediately upon completion of the film advancing motion 4 Excessive or insufficient film advancement 5 Locking device for the Film advancing not operating properly ssssseceseeeeeeee 7 The shutter can be released during or prior to film advancement ea Shutter can not be charged B Film advancing operation is not smoothly carried out 9 Film advancing lever does not retum completely and or smoothly to the original 9 The shutter releasing position of the button too deep too shallow Excessive or insufficient leeway in the button motion after the shutter release Heavy touch of the shutter release button esee eee lO Uneven intervals between picture frames e Film Counter Plate not moving properly 1 S point of the Film Counter Plate out of position 15 Little leeway stroke after the shutter release by the pra sceccccocecsecccscscacseseatccesesesess 15 ST lever not pointing straight 16 IV2. 8592 or the Gear A the whole assembly of 8543 Shaft with a new one 2 If insufficient engagement is found in the vertical direction o Bend 8592 and adjust Adjust tolerance on 8592 Replace 8592 Replace the Gear A the whole assembly of 8543 4 Excessive or insufficient film advancement for Shutter Charging 1 Improper adjustment of Eccentric Screw 8809 In case of insufficient film advancement loosen two HK1 4 102BO to widen the distance at A by adjusting 8809 In case of excessive film advancement narrow the distance at by adjustment of 8809 Care must be taken not to make an over adjustment casuing the mechanism unchargeable Prior to film advancement when the Gear A is pressed in the arrowed direction the distance between 8840 and the Gear A should be 0 10 2750 3 0 10 means the state where the Gear comes in contact with 8840 and further moves by 0 1 2 6 Adjustment is similarly made 8809 Checkup Gently wind up the film and see if the Gear A tums 0 3mm or more when 8592 Claw gets engaged on to it Delayed release of CA8824 Even upon film advancement the shutter release button cannot be pressed down Refer to the checkup column below Take out the lower part of 8824 Lever shown below by 0 05 0 1mm ea aie Take out 0 05 0 1 Checkup The Lock Lever should be released only after 2G and 3G are disengaged 5 Locking device for the
3. See Fig B IV MAJOR FUNCTIONS 1 Poor focus o 1 Adjustment of flange back fo 46 002992 For adjustment 9106 Washer t 0 01 round or 9107 Washer t 0 02 is to be placed between the camera body and the Front Die Casting 2 KC 0070G 401 Olympus M Mount U and KC 0070G 3 46 00 gauge are to be used to measure the four points on the rails Parallelism the difference between measured points should be less than 0 02 Focus adjustment for the viewfinder proper type of 9144 Washer and 9145 Washer is to be selected out of 8 types available for each Pick the type with the same thickness and use them in a patr 9144 a t 0 04 9145 a t 0 04 b 0 06 b 0 06 c 0 10 0 10 0 15 0 15 0 20 0 20 f 0 25 f 0 25 9 0 30 9 0 30 h 0 35 h 0 35 F
4. 10 Mirror bounds while being raised SHUTTER AND MIRROR 1 Excessive or insufficient speed of the curtains 17 2 Ast curtain bounces 3 Adjustment of B shutter 22 4 Shutter timing esee 24 EMIT 5 Improper timing at high shutter speeds 6 Improper timing at low shutter 26 27 7 Irregular shutter timing at low speeds 8 Irregularity in Curtain 8 32 9 Even when the mirror is raised it does not reach the topmost position During mirror up operation the MU knob gets heavy towards the end of its motion 35 36 EXPOSURE METER 1 The meter needle gets Stuck esee 36 2 Inaccurate indications 37 3 Improper operation of CA8879 40 4 improper adjustment of CA8948 Screw eee 43 5 Dial gear operation DTP Changesn eese scare E n6 45 7 Warning switch adjustment D 46 MAJOR FUNCTIONS Poor FILM ADVANCE amp SHUTTER RELEASE MECHANISMS Film advancement not performed smoothly 1 Improper selection of CAB844 Lever 8844 1s avatlable in following 3 types Adjustment should be made on the timing of brake release by replacement of 8844 with a prop
5. Check for inclination of 8519 and 8520 and make necessary adjustment ye 8508 In case where the Shaft rattles vertically due to deformation of 8508 inserta U washer 0 1 0 2 underneath the Plate R on the arrowed side Checkup Vertical tolerance of the Shaft should be 0 2 or less 35 ed it does not reach the topmost position 9 Even when the mirror is rais the MU knob gets heavy toward the end of During mirror up operation its motion 1 Improper selection of the MU ring Make a proper selection of the MU ring to satisfy the requirement cited in the Checkup column below CA8451 MU ring outer diameter 2 80 M CAB452 3 1 453 t 3 4d CA8549 a 3 76 1 While the mirror is at the original lowered position there should be a space of 0 2 or above between the tip of 8486 and the MU ring 2 During the mirror up operation the mirror should be in such a position that its tip touches the damper and presses at accurately The MU knob should operate smoothly and should not get heavy toward the end of its motion 10 Mirror bounds while being raised 1 Improper selection of CA8464 Spring 8466 8467 If the mirror bounds for more than 4mm while being raised the Spring should be replaced with a thicker one 8464 0 46 8466 0 45 8467 0 556 In case that the mirror rising time is more than 3 2ms 8464 should be replaced with a thinner IH EXP
6. increase Rl When RI is replaced it returns to the state of the order 1 3 14 100 1 125 11 0 6EV case of a 4 lessen R3 cannot be utilized for less than 2 2 At BV16 if R3 is found insufficient check it with R2 Since R3 also influences BV8 when R3 is replaced it retums to the state of the order 2 E 46 Order S S E Range Adjustment 4 16 100 1 500 11 0 6EV In case of a increase R2 Since R2 also influences BV14 when R2 is replaced it returns to the state of the order 3 5 12 100 1 25 5 6 0 6EV In case of a lessen Rl When is replaced it retums to the state of the order 1 7 Warning Switch Adjustment 1 Adjustment of the L contact point position Ref Checkup column Loosen two PUK1 7 x 4SO on 9124 Slightly move HU2 2 550 forward or backward for adjustment CA9124 PUK1 7 x 4SO HU2 x 2 580 Checkup Place the mercury battery in the camera and turn off the main switch With ASA 100 at the shutter speed the aperture ring is gradually turned from F16 toward open At this time the meter needle should once jump to 2 0EV above the index center before it stays at 0 SEV See Fig At this time the aperture should be slightly stepped down than 2 8 When the lens aperture is stepped down from the wide open state the meter needle should once swing down to a position lower than 0 5EV before it is stabilized at 0 5
7. lubricate Whether 8537 4 pieces are off the roller Rotation of 8510 However do not lubricate 8580 Check whether it with the Ring of the Shaft B 8609 Wnether it is properly engaged on the lever 8501 Dirt or inaccuracy in surface finish at the guide holes for the Shaft A and B 8520 Check the engagement with the Gear B any deformity or bent Shortage of lubricant and any scratches Pin 8537 Check for any rubbing with 8540 1 relation the string and the Patch 8529 Rotation to be checked however no lubrication Check the manner in which the strings are bonded 8529 Check the rotation but no lubrication Check the manner in which the strings are bonded 8519 Check its engagement with the Gear A any deformity or bent 8545 Check if loose Gear B Gear A Lever off engagement Lever Check the relationship with the position of 8576 22 23 24 25 26 27 28 29 30 E 34 Lever Check it is off position or whether it is efficiently working Claw Check it is off position Also check for the proper space between the Gear B 8570 Check if off position 8501 Check for deformity 8521 Check for deformity 8612 Check if it is stuck with the Gear A 8585 Check if loose 8578 Check for with the Ring of the Shaft A 8603 Check for the proper room between the Lever CA8508 Plate mounted off position Loosen two PUK2 x 2SO of 8508 and adjust the position of 8508
8. stay away from the 8829 with a distance of 0 1 0 3 o 8819 should be in engagement with 8829 for more than its own 8819 thickness in the vertical direction E 9 Film advancing operation is not smoothly carried out 1 8828 Shaft and CA8836 Gear stuck together Adjust the position of 8501 Plate 2 Delayed release action of CA8586 Spring Ref E 4 1 2 3 8578 Lever stuck Check the appropriate parts and make necessary repairs or adjustments 4 Excessive charging force CA8412 Lever Check the operation of the related parts and make necessary repairs or adjustments Checkup The charging force of 8412 should be 430 500 gr CA8749 Lever does not return completely and or smoothly to the original position 1 Top cover mounted slightly off position When 8703 Top cover is mounted off position it will cause 8753 Decoration and 9083 Washer to rub each other The position of the 8703 should be adjusted 2 8774 Spring 89 5 worn out broken or entagled 298 oS cnms sf i e 10 The shutter releasing position of the button too deep or too shallow Excessive or insufficient leeway in the button motion after the shutter release 1 Improper adjustment of CA9068 Collar 9068 should be adjusted so that the mirror commences its operation when the distance between the oblong hole of 8862 and 8864 at their edges is 0 3 0 5 CA8864 3 8432 0 3 o
9. upon tightening it be sure to check the operation of the L lever 2 4 5 Poor soldering Check 9057 Plate various resisters and lead wires for poor soldering or short circuit and make necessary repairsor adjustments Position of resisters Check the following points and make necessary repairs or adjustments o Is the resister soldered onto the printed board as tightly as possible o Isn t the register in contact with 9108 o Is the printed board fixed closer toward the surface of the rails on the camera body leri CA9108 CdS wire disconnected In case when the value indicated is extremely in minus either in high or low luminosity check for disconnection of the CdS wire as follows o Conductivity of the red CdS lead wire for both high and low luminosities o the black CdS lead wire for high luminosity and o the green CdS lead wire for low luminosity Disconnection of wire in the mechanical part no needle swing Remove the lead wire by unsoldering and check the conductivity of the mechanical part If disconnection is found replace the whole meter assembly 39 6 Improper operation of CA8879 Ring Ref E 40 7 Improper adjustment of the Cam gear positioning Screw Ref 43 8 Improper operation of the Dial gear Ref E 44 9 Change in CdS features Ref E 45 Attachment Table Meter Indication Accuracy LSB L7 Light Box K 1 3 ASA 100 BV 5 5 F Error Tolerance
10. 1 mm between pulleys of the B spring and the B spring plate 3 Improper selection of CA8933 Roller diameter 8933 comes in 6 types see next page Referring to the checkup column on the right make a proper selection and check the operation 42 C33 34 aS 36 4 2 0 air CAYPBe CAVIE CAFE CAIA CAII Checkup 8933 should tum smoothly and accurately without an extreme difficulty such as stoppage and uneven movement 4 Improper diameter of CA8957 Roller 8957 comes in three types Referring to the checkup column make a proper selection and check the operation e xs M i6 RT PS CASI TA CAPYSTA CABISTC 8957 Do not touch 8957 directly withbare fingers 43 Checkup 8957 should always be protrusive from the surface where 8879 1s joined with 8702 A little space may be permissible between 8957 and 8879 If the roller selection is made allowing no space between them 1t sometimes causes poor returns of 8879 5 Spring pressure of CA8951 Holder too strong 8951 should be checked for filth or deformity Make necessary repairs or adjustments 4 Improper Adjustment of the Cam gear positioning screw 1 Adjustment of the Cam gear posit oning screw When 8945 is pulled fully toward the arrowed direction the space between 8879 and 8925 should be with 0 3mm An adjustment should be made to fulfill this requirement by t
11. 15 1 500 8 0 3 EV x 0 6 EV i2 1 125 5 6 0 6 EV 9 1 4 11 0 6 EV 6 1 2 4 0 3 EV 0 6 EV In cases of BV 15 and BV 6 check the error by directions of the turn of the aperture ring and the shutter dial For BV 12 and BV 9 start turning the shutter dial from the side of 1 1000 and the aperture ring from 16 40 LSB Ll Light Box K 1 3 90V ASA 100 BV 5 5 F Error Tolerance 16 1 500 11 0 3 EV 0 6 EV 14 1 125 11 0 6 EV 12 1 125 5 6 0 6 EV 10 1 125 2 8 0 6 EV 8 1 2 11 0 6 EV 6 1 2 5 6 0 3 EV 0 6 EV In cases of BV 16 and BV 6 check the errors by directions of the tum of the aperture ring and the shutter dial For BV 14 12 10 and 8 start the turn of the shutter dial from 1 1000 sec and of the aperture ring from F 16 3 Improper Operation of CA8879 Ring 1 Deformity or rough eage of CA8879 and protrusion at the string adhesion Replace 8879 Method of Replacement o With Cemedine 3000RS bond the tips of the strings on 8879 as they were If they are bonded at the same position it will give no problem in their functions Do not allow the adhesive to protrude or heap up 41 2 Adjustment of CA8946 String dislocation and entanglement 8946 is to be threaded as follows Remarks o The string should not be dislocated from the pulley o The width at A and B should be approximately the same o When 8879 is turned until it hits the Cam Roller there should be a space of less
12. Bulb 1 Upon completion of shutter charging 8862 Plate should return to the original position accurately At this time there should be a space between Claw A of 8567 Shaft and the Gear B of 0 5mm or above See below the portion marked A If there is not an adjustment must be made by bending the portion marked with circle in the picture below 23 2 Press 9078 let Claw A of 8567 engage onto the Gear B and sce if there is a space of 0 2mm or above between 8810 Plate and Claw B when the spece between the oblong hole of 8862 Plate and 8864 Shaft gets to 0 8mm If there is not an adjustment should be made by bending the portion marked with circle in the picture below Upon such an adjustment check the point 1 above again 810 CA8862 7 Claw 2 The spece between Claw A and the Gear Depending on the size of Claw A there are three types of 8567 Shaft A proper selection should be made out of the three shown below that the between Claw A and the Gear B would be 0 1 0 3 shown below 85675 8567 CA8567L An adjustment may be made by bending the tip of Claw p B if 7 I 3 1 When Claw A is shaken if its lower edge hits the Gear B an adjustment may be made by bending the Plate B ee Vertically Claw A and the Gear B should be engaged with each other for more than 2 3 of their thickness Shift
13. Film advencing not operating properly 1 Improper operation of related parts Refer to the following checkup column and check the operation of related parts 1 If the shutter cannot be released upon film advancement check if 8842 Lever and the Stopper Ring of 8821 Lever are in contact with each other They should not 1 CA8842 4 2 When the release button returns to its original position after the shutter release 8862 Plate should return until its oblong hole hits 8864 Shaft 3 The operation should be accurately carried out from 8842 8821 8824 until CA8824 hits the 9053 of the body Release of Locking device for the Tilm Advancing 6 The shutter can be released during or prior to film advancement 1 Improper operation of related parts Check the operation of related parts If the shutter cannot be released even upon film advancement make sure 8850 Pin is not hitting 8810 Plate 7 Shutter cannot be charged 1 Improper operation and or adjustment of CA8819 Claw Refer to the checkup column Adjust the distance A on 8819 CA8834 29 N 0 1 03 aN 8819 73 ur d A ncc d Checkup o When the film advance lever is returned to its original position during the film advancing operation 8819 should engage onto 8829 to prevent reversion of 8834 Apply force on the sprocket During the film advancing motion 8819 should
14. OSURE METER The meter needle gets stuck 1 Filth or oil on CA9024 Shaft Replace 9024 Checkup No more sticking after the repair 1 Remove 9025 Base and 4073 and take out 9024 positioned at the low luminosity If it cannot be removed because of adherance by Araldite take off 8961 However avoid removal of 8961 as much as possible 2 Clean the following parts with the ether alcohol and apply the oil Oilproof Liquid 9025 around the area where 9024 is mounted 8977 Plate and 9142 3 Apply a little Araldite in thc hole where the A fits in 9025 and set 9024 To be cleaned and applied with Oilproof Liquid 4 Before mounting the Top cover check the operation of CA8995 Upon mounting the Top cover check the indicator accuracy ef L Checkup 8955 follows 9010 in its operation 2 Inaccurate indications 1 The zero point of the meter off positioned If the zero point is extremely out of position adjust the position of 8981 1 In case of an excessive swing loosen 9008 and turn 8981 to the right 2 In case of an insufficient swing turn it to the loft Upon adjustment turn the shutter dial to adjust the loosened string Ch9008 Ld M 42 casse MV ML Fine adjustments are made by 9016 a part of 8995 assembly At this time itis preferable not to loosen 9016 If 9016 is overly tightened the L lever a part of 8995 assembly may operate poorly Therefore
15. d above i e the positions of 8778 8790 and 8802 are all related to the movement of the Film Counter Plate 8795 Spring entangled Check the relative part and adjust CA8795_ lt 7 LD RM 15 14 S point of the Film Counter Plate out of position 1 Adjustment of CA8807 Pin Loosen 8798 and adjust eccentricity of 8807 so that the tip of 8790 touches the bottom of the first tooth of 8793 8807 CA8798 id 15 Little leeway stroke after the shutter release by the self timer 1 Adjustment of CA9089 Screw Refer to the checkup column on the next page and make following adjustments G ee __ A Bigger leeway stroke after the shutter release and shorter self timer operation B Little stroke after the shutter release and longer sel timer operation Checkup The duration of operation of the self timer is to be 9 14 seconds when itis fully set The leeway stroke after the shutter release should be 0 2mm or above 16 ST lever not pointing straight up 1 S stopper pin of the self timer not peroperly adjusted Loosen the screw and adjust the S stopper pin eccentric After adjustment tighten the screw fully and bond it with Aron Alpha Checkup The slant at the tip of the ST lever should be 0 3mm or less E 17 SHUTTER AND MIRROR 1 Excessive insufficient speed of the curtains 1 Improper adjustment of CA8531 Nut The curtain speed is adju
16. d with a rubber ring should hit 8502 but not at the speed of 1 2 Checkup The first curtain should stop at 3 779 from the edge of the mask Also the overlapping with the Patch of second curtain should be 2 5mm or above 3 4 5 6 21 Brake adjustment unsatisfactory Upon adjustment of the curtain speed when the shutter is released at 1 1000 or B there should be a room of 0 05 0 2mm between 8501 Base Plate and the Gear A If not it should be adjusted to be within that range by 8587 Screw It will change the spring tension of 8586 Spring 8587 8501 Kos um IO 5s Xe on So i Gear Spring tension of 586 Srping weak If 8586 itself is worn out make replacement Upon replacement check the space between 8501 and the Gear A 8578 Lever not operating properly Looseness of 8585 Screw is to be checked It should be tightened ifloose On the way of the film advancement remove 8586 Spring from 8567 to check the operation of 8578 If it does not work properly adjust or repiace it Inaccuracy in surface finish of the sliding part of 8519 To be cleaned adjusted or replaced in total assembly 22 7 8595 Lever and CA8592 Claw stuck together 8598 Washer is to be mounted in the manner shown below 8598 ls lite 3 Adjustment of B shutter speed Irregularity of B stop immediate closing or remaining open 1 Adjustment of
17. er type Caution Some of 8844 are bent for adjustment of engagement between 8828 Shaft and 8833 Plate This should be checked at the time of replacement CA8844a Cc 4 4 for slower timing CAB844c for faster timing If even upon replacement with 8844C the film advance motion 1s not smooth yet the portion marked A may be slightly hammered out Do not work excessively as it will cause the spring to be readily pressed from the beginning of the motion 4 2 Adjustment required of brake force Strengthen the force of 8586 Spring with 8587 Eccentric screw After this adjustment be sure to check the bouncing effect 2 Film cannot be advanced 1 Parts coming loose or fallen off 1 Check all parts relative to the film advance mechanism 2 Check if any parts of the shutter mechanism have fallen off 3 Check for any springs and screws of the Front Die Casting either coming loose or falling off Make necessary repairs 2 CA9051 Plate stuck with CA9044 Plate When 9051 is extremely deformed replacement is required Clean the sliding portion of both 9051 and 9044 and apply small amount of Molicote Grease Type U bk 9141 044 C 3 Shutter automatically released immediately upon completion of the film advance motion 1 insufficient engagement between CAB592 Claw and the Gear A 1 If insufficiency is the horizontal direction replace either
18. ff singly See the Figure in 24 6 Improper timing at low shutter speeds 1 Adjustment required for proper positioning of the Governor If the speed at 1 30 1 1 sec is in average longer or shorter than the proper timing an adjustment 1 made by moving the governor When it is longer the governor s to be positioned rather towards the direction A and when shorter towards B G lever To Gear B to regulate the start of 2nd curtain run 6 To set the inris disengage ition of position of Cam lever the Ankle To CA8575 To CA8605 Checkup Refer to the Inspection Standard for the proper timing and make measurements with the shutter tester For reference See the picture above for functions of the individual levers for the Governor 2 27 Adjustment required for the Low Cam When a certain shutter speed takes longer than the proper timing hammer out the appropriate portion of 8575 and when shorter shave For adjustment of 8575 remove 3PUK1 4 x 5 550 then 8575 will come off singly See the Figure 24 7 Irregular shutter timing at the low speeds 1 Little operation of CA8612 and large shaking Adjust by bending portions C and D of 8612 like that relative parts work as follows When 8575 is set at 1 1 1 8 immediately prior to the shutter charging action 8612 starts working and portions A and B of the governor should move in the directions indicated by arro
19. film advancement 8785 should be positioned as follows within the range shown by arrows HK1 4 604BO HD A Space between 8793 and 8785 should be more than Imm 2 3 4 Improper positioning of CA8778 Lever Keeping the E pin of 8775 at the neutral position of it eccentric motion bend the Plate A so that 8778 will hit the E pin when the Rear Cover is closed CA8778 Improper material used for CA8786 Ring If the material for 8786 is soft and is deformed replacement will be required Improper position of CA8790 Stopper When the Rear Cover is closed the tip of 8790 should hit the bottom of the teeth of 8793 If it does not an adjustment should be made by bending 8790 at the S position Some room may be permissible between 8787 and 8790 5 6 14 Checkup o When the Rear Cover is closed 8790 should not supple o Even is 8793 is shaken vertically 8793 should be engaged with 8790 at least for its own thickness o The tip of 8790 should be lower than the upper surface of 8793 o At the commence of motion 8785 should work on the 4th tooth of 8793 Adjustment of CA8802 Pin Adjust the E pin like that 8793 will be travelled by 1 2 1 8 teeth space by means of 8785 When there is insufficient travel adjust 8802 in the A direction shown above and when excessive in the B direction Upon adjustment of 8802 realign 8778 and 8790 The three points explaine
20. he Positioning screw Pos tioniag Screw CA8925 Cam gear 28 945 Upon adjustment there should be a space between the A and the stopper pulley o When 8879 is turned to its fullest extent the A should not hit 8925 44 5 Dial Gear Operation 1 Adjustment of CA8944 String 8944 the string for the dial gear should be threaded as follows When threading it should be started from the arrowed W direction to avoid crossing with the String Checkup o the meter is not mounted onto the Front Die Casting attach 12 gr weight at the tip of the string and check the operation o Each pulley is to turn smoothly and accurately o Tolerance on the dial gear should be 0 1 or less o When the dial gear is rotates 8924 should not move 8959 2 Tolerance adjustment the dial gear 8880 An adjustment is made with 8959 to bring the tolerance on 8880 to 0 1 or less 6 Changes in CdS Features 1 Changes in CdS Features replacement of resisters Each resister is to be matched Following is the standard value of each resister R1 12 4 K2 Low luminosity and in general R2 9 6 Ks High luminosity R3 3 5 R4 Low luminosity 5 Warning switch ORDER OF MATCHING For LSB L1 MS 5014 to be used for adjustment Order SS Range Adjustment Q 6 100 12 5 6 0 6EV case of a 4 lessen R4 2 8 100 1 2 11 0 6EV In case of a
21. ne adjustment on the alignment of the Patch of 8600 and the Scratched Line on the die cast by adjusting the 5 holes positions Tolerance 0 0 3mm From the point of perfect coincidence with the Scratched Line up to 0 3mm passing it Return 8521 to the original position and tighten 8857 Shaft Loosen PUK1 4 x 1 880 of 8522 Stopper slide aside the 8522 and raise 8519 Shaft to release its engagement with the Gear A While keeping the proper relationship between the Gears A and B items 1 through 3 above rotate 8519 until 8538 Curtain reaches closest to the Scratched Line on the Die Cast see in the illustration in page 18 and lower 8519 until it gets engaged with the Gear A Make fine adjustment on the alignment of the Patch of 8538 and Scratched Line on the die cast by adjusting the 5 holes positions 020 15 Tolerance m Return 8522 Stopper to the original position and tighten PUK1 4 x 1 880 2 151 curtain stops at the improper position After the shutter is released when the boss of the Gear A 1s pressed against 8501 Base Plate the edge of 8538 Curtain should almost reach the Scratched Line see C below If it does not an adjustment may be made by moving vertically the mounting position of 8517 Stopper assembled in 8519 Shaft casso1 EP IO Wed c M Tem Reference Stopping point of the second curtain At 1 000 sec the boss of the Gear B covere
22. s CA8862 Checkup o Make sure 9065 does not hit 8432 Hook prior to or during the film advancing motion o Taking the upper edgesurface 9083 as the basis the shutter should be released within 0 20 2 11 Heavy touch of the Shutter Release Button 1 Operation of CA9078 Plate 2 Releasing force of the CA8432 Hook too heavy Checkup o The releasing force of 8432 should be 50 gr or below 11 12 Uneven intervals between picture frames 1 Improper positioning of Sprocket Teeth After the film is advanced and locked bring 8785 Gear to rise within the range and make following adjustments Loosen 8817 Screw and change the position of engagement betw 8816 Gear and 8834 Gear 4d The Sprocket will turn 1 66mm more or less when the engagement is changed by a tooth on 8816 Gear The lowest gear is 8834 8785 CA8784 CA8793 The clearance between boss of 8785 and 8793 should be over than Imm The spece between 8793 and 8785 should be Imm or above The clearance between boss of 8785 and 8793 should be over than 1mm Checkup When the Sprocket 1 pressed toward the Mask the distance between the edge of the Mask and the Sprocket Teeth should be 21 0 22 0 mm 13 Film Counter Plate not moving properly 1 Improper positioning of CA8785 Gear Set 9141 and loosen HK7 4 604 BO on 8784 to let it rise and adjust 8785 position Upon completion of
23. s in releasing force of Claw A Where there is an extreme shifting in the releasing force the portion of 8567 Shaft 8501 Plate and the Plate B where they fit with each other should be cleaned Then rubClaw A several times While the release button remains depressed at the shutter speed B release the shutter with 8595 Releasing Claw A with tension gauge measure it should show the valve of 5 159 4 Shutter Timing Positions cf CA8575 Cam and CA8576 Cam at each speed CAB8576 1 CA8575 PUK1 4 x 250 3PUKl 4 5 550 5 Improper timing at high shutter speeds 1 Adjustment of the Eccentric Screw If the speed at 1 1000 1 60 sec is in average longer or shorter than the proper timing and adjustment is to be made with A of 8556 Lever Checkup Refer to the Inspection Standard for the proper timing and make measure ments with the shutter tester For reference Shutter Release 8592 releases the Gear A 1st curtain starts the run The Cam of the Gear A is pressed The Lever of 8556 is worked The Claw of 8567 engages the Gear B Znd curtain starts the run 2 26 Adjustment of 8576 High Cam When a certain shutter speed takes longer than the proper timing hammer out the appropriate portion of 8576 and when shorter shave it In case of 1 1000 sec widen or narrow the appropriate section For adjustment of 8576 remove PUK1 4 x 2SO then 8576 will come o
24. sted by 8531 Refer to the checkup column and make adjustment Turn 8531 to the right to weaken the curtain tension and thus slow down the speed Turn 8531 to the left to increase the tension and thus speed up the curtain run CA8531 for 1st Curtain 8531 for 2nd Curtain Adjustments may be made by 8525 Shaft and 8524 Shaft Turn them to the right for stronger tension and faster spped and to the left for weaker tension and slower speed Care must be taken not to deform the driver groove at the upper end of 8525 and 8524 as it will cause poor operation of the curtains E 18 Checkup Use the shutter tester 7F7L1 and or 7F7L3 The speed should be 11 727 12 1 at 1 1000 sec 2 181 curtain bounces 1 Adjustment of the curtain position Patch inclined 1 Tum 8519 Shaft to let 8592 Claw engage on to the Gear A and lock it Do not directly touch the metal part of 8519 with fingers 2 Remove 8857 Shaft on the lens side turn 8521 Stopper lower 8520 Shaft and disengage 8520 from the Gear 3 Rotate the Gear B to bring its boss to the position coincident with that of the Gear A as shown below 4 Do not change the position of the Gear B but tum 8520 until the Patch of 8600 Curtain reaches closest to the Scratched line below on the Die cast Body Then raise 8520 and let it engage onto the Gear B Colin 5 6 7 8 E 19 Make fi
25. te shutter timing for 1 1 and 1 2 the message is transmitted from 8575 to the Cam lever and the operating angle of the G lever will be changed E 30 At the shutter speeds 1 4 and 1 8 Large Ankle off engagement The S lever escapes from 8606 and the S ankle is engaged 8605 pushes the A lever and the L ankle remains unengaged To differentiate the shutter speeds of 1 4 and 1 8 from each other the message is transmitted from 8575 to the Cam lever to change the operating angle of the G lever At the shutter speeds 1 15 and 1 30 Action is transmitted from 8606 to the S lever and from 8605 to the A lever while both the L ankle and the S ankle remain off the engagement Without the use of the Ankle the load is given only by the gears Differentiation between 1 15 and 1 30 will be in the same manner as in the case of 1 1 1 8 CAR A of 4 8575 In cases of 1 60 1 1000 the action 1s transmitted from 8575 to the Cam lever of the Governor then to the G gear and the arrowed portion of the Gear B 1s disengaged from the G gear The governor will not be activated in this case 32 Irregularity in Curtain Speeds 8 Check the following items and make necessary repairs or adjustments 26 Q o 3 4 5 6 7 8 9 10 an 12 13 4 15 16 17 18 19 20 21 E 33 Mounting position of 8508 Rotation of 8510 However do not
26. ws to release the Large Ankle and Small Ankle of the govemor 2 28 With 8575 set at 1 1 1 8 when the Glever of the Governor is worked upon completion of film advancement the Ankle should not be engaged For reference Prior t the shutter charging action The boss on the Gear A presses 8612 presses lever of the Govemor in case of 1 1 amp 1 2 or 8 lever of the Governor in case of 1 4 amp 1 8 And just immediately prior to the shutter charging action engagement between the Ankle and the Gear is released and the G lever gets in contact with the tooth of the Gear B The shutter is released The Gear A is rotated and 8612 is sprung back to the original position CA8580 lever rattling Prior to film advancement check the engagement between 8580 and 8609 by shaking vertically 8609 If such engagement is for less than 2 3 the thickness of 8609 adjust the room at the rivet of 8580 to be within 0 3 29 Relationship between the Governor and the Cam 1n CA8577 Gear At the shutter speed B Large Ankle off engagement 5 lever Small Ankle off engagement 8606 Both tne S ankle and the L ankle are released from engagement by the S lever and the A lever At the shutter speed 1 1 and 1 2 Large Ankle in engagement The A lever is released from 8605 and the L ankle is engaged The S ankle remains off engagement by the S lever To differentia
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