V I E W – M A S T E R® P E R S O N A L R E P A I R J U L Y S T E R E O C A M E R A M A N U A L 1 9 5 4 ® SAWYER’S INC., Portland, Oregon Copyright 1954 by SAWYER’S INC., BOX 490 Portland, Oregon Printed in U.S.
P E R S O N A L C A M E R A REPAIR MANUAL This manual is made up of two parts, part one (Sections 1.000 – 8.000) Set up is the following form for the analyzing and repair of specific problems. 1.000 Shutter 1.100 Shutter sticks open when wound. 1.200 Shutter sticks open when released on bulb. 1.300 Shutter will not open. 1.400 Half of pictures unexposed. 2.000 Winding 2.100 Tears Film 2.200 Jammed Winding knob. 2.300 Winding knob WILL NOT lift. 2.400 Winding knob will not lock. 2.500 Loose set screw. 3.
P E R S O N A L C A M E R A REPAIR INSTRUCTIONS 1.000 SHUTTER The vast majority of all shutter repairs may be made by lubricating RATCHET wheel with “DAG 154” as described in this section (1.110 and 1.310). “DAG 154” is colloidal graphite diluted in ALCOHOL (1 part DAG to 7 parts alcohol). Acheson Colloidals Co., Port Huron, Michigan, U.S.A. If shutter does not open, check to be sure winding cycle is completed. If it is not, see section B “Winding.” Do not oil shutter blades or movement.
1.124 Pawl Tension Check tension of 084 pawl. It must have enough tension to engage the 082 latch every time (Min. 7 grams, Max. 15 grams). If tension is weak, movement must be removed and tension adjusted by turning 089-090 stud and spring with pliers, then restaking stud to hold it in new position. If spring is damaged beyond repair, remove 089-090 stud and spring and replace with new one, stake in lightly, adjust to proper tension, and stake or rivet in place. This requires removing movement from camera.
1.340 Overtravel movement You will note while winding the camera that just short of half way in the winding cycle the 112 release lever pawl engages the 506 floating lever assembly by latching the movement. After the 112 pawl has latched the 509 gear sector must continue up at least one more tooth (.030) to insure enough overtravel in movement assembly. If there is not enough overtravel, loosen three of the four movement mounting screws, leaving the one closest to the flash switch end of the camera tight.
assembly and 020 pinion gear. The 510 pawl assembly may be tight and little hard to get out. On cameras under serial No. 9863, Install new 020 pinion gear and 510 pawl assembly. Remove and discard fishhook shaped 310 spring. In it’s space use a 311 spring, lubricate shaft 022 spring. In and slip 311 spring over end of 022 spool, inside radius up. The 510 pawl assembly must turn freely in hole in frame. The 020 pinion gear must turn freely on 510 assembly.
movement plate, or some other interference with the 522 reset lever. Increase clearance by very carefully prying up on movement with screwdriver. Test for freeness by sliding 522 reset lever back and forth. 2.220 Main Lever Hour Glass Cam Alignment If winding knob turns free for about on half a turn, then binds and will not go further, but will reverse, it may be caused by a mis-alignment of the 506 main lever and 523 hour glass reset cam.
2.420 Winding Knob Will Not Lock After One Complete Turn Check to see which position (A or B) that camera winds through in. Leave selector knob in that position. Remove bottom and back. Test to see if it still winds through. If it does not wind through with bottom removed, file back side of boss which is drilled with 5/23 hole to receive 500 shaft. This will allow lever to go farther forward. If knob winds through even with bottom plate removed, it will be necessary to remove top of camera. Remove top.
through, it is necessary to replace 071 slides and possibly 503 gear. Mark 551 gear, 503 gear, 534 gear, if possibly 503 gear. Mark 551 gear, 503 gear, 534 gear, if not already marked. Remove lock ring and 551 gear. Unhook back 212 spring at frame and unhook front 212 spring at 071 slide. Loosen top set screw in 515 film sprocket. Pull out 503 gear, 071 slides, 215 sprocket sleeve, and 075 sprocket spring. Remove 075 spring and 215 sleeve from gear.
3.150 3.160 3.170 3.180 keyed pinion shaft. Test for freeness. If not perfectly free replace pinion 118-545. Turn dials to F/6.3 and 1/58. Turn exposure dial to “Bright Sun” and “Average Subject”, and install cam follower and springs. With film speed at Summer 10, “Bright Sun” and “Average Subject” aperture dial on F/6.3 speed, dial should read 1/58 ±5%. Test for freeness. If still sticky replace cam follower 118517. Reassemble and test.
7.000 FLASH TROUBLES 7.100 Flash Bulb Will Not Fire It is best to check with another flash unit, as the trouble may be in the flash unit or in the way the unit was put on the camera. Trouble in flash attachment usually caused by the batteries being installed improperly. If you believe the trouble to be in the camera, remove the bottom plate. Check switch to be sure it is functioning properly (See Section 24.100).
film being scratched before processing. Polish film channel lightly with crocus cloth to cure scratches on emulsion side. Great care must be taken not to get dust in camera. Polish pressure pads with jeweler’s rouge and a soft cloth to cure scratches on back of film. Care again must be used to keep dust out of camera.
P A R T T W O 20.000 BOTTOM AND BACK 20.100 To Remove Bottom and Back Be careful not to disturb switch or movement parts. 20.110 Turn camera upside down and remove 7 screws. 20.120 Lift off bottom and remove back. 20.200 To Replace Bottom and Back 20.210 Be sure camera is timed and flash synchronized before reassembling. 20.220 Engage cover hinge pin in hinge pin hole in top, and close back. 20.230 Install and tighten 7 screws.
21.110 21.200 Make Following Check Using Another Camera As A Standard A - Wind gears both directions to be sure 510 assembly rotates in a clockwise direction only. B - Test tension of shaft 022. This test can be made by comparison with another camera. C - Shaft 022 must be free enough to allow the weighed screwdriver to rotate it when the screwdriver is inserted in slotted shaft. Use another camera as standard. D - Check for tight gears. Wind twice in both “A” and “B” position.
R - Insert another 2-56 X ¼ in. Round head screw. Tighten this screw with solid screwdriver. S - Lubricate advance indicator threads with CD33. Install travel indicator using special tool. Be sure that indicator is not eccentric and paint is not chipped. This is done on cameras above #9800 only. Install plastic window. T - Replace top plate with three 0-90 screws. Check exposure dial, with summer set at 10, average color and bright sun lined up, setting should be F6.3 at 1/58±5%.
J - Pull shutter blade back a little ways and install crank assembly 118-524. Crank assembly must be indexed in teeth of selector plate so that when the lower holes are in position, (Selector plate slides to the right) the crank must be pointing down. Install selector knob in “A” position; selector knob guard 118-152; washers 118-171; and 2-56X¼ flat head screw. K - Check freeness and operation of entire assembly. Be sure shutter pad 118-218 is in proper position with cut out section toward back and down.
In” round head screw holding small escapement to movement plate. D - Remove 2-65 X ¼ In” round head screw and 188-255 spacer at the other end of movement (rear side). E - Unhook 118-122 spring from 118-522 reset assembly. Remove screw 118-118 being careful not to loose 118-117 spacer from under movement. F - Remove movement from frame. 23.200 Replace Movement A - Place camera upside down and set 118-117 spacer in place and place movement in position and install 118-118 screws.
Shutter Timing and Flash Synchronization ( For strobe see section 24.200 ) 24.000 SHUTTER TIMING AND FLASH SYCHRONIZATION The personal camera is designed and built so that, if properly times at 1/100 of a second, all the other speeds will be in correct time. All cameras leaving the factory are timed to within ±10% and checked on all marked speeds except 1/15. We recommend that the flash switch be adjusted by the use of an oscilloscope with a shutter timer. See wiring diagram).
After adjusting the floating lever hook, replace camera in tester and wind camera. Trip shutter. Read timer scale. H - When tripping the shutter during this 1/100 test, ovserve the oscilloscope and note that the trace is thus: I - Set shutter speed to 1/50 and check speed and oscilloscope trace. Speed should be .018 to .002. (See Section 24.100 – Q for details of analyzing this trace) J - Attach camera flash connection to top of camera. Watch oscilloscope during 1/50 exposure now.
oscilloscope pictures shown in sections 24.100 – I. The camera shutter normally blocks the light from the photocell, and oscilloscope spot moves over the same line until the shutter is released and starts to pass light to the photocell at “A”. As the shutter moves very rapidly, the spot rises almost perpendicularly until the shutter is fully opened, “D”.
as it occurs during an untimed period in the shutter operation. However, the upward spike marks the instant the switch starts to close and therefore is an important marker. Refer now to the preferred picture for 1/50 second shutter and switch timing shown in section 24.100 – J the point “A” marks the start of the shutter opening and “D” the point when the shutter is fully opened, “E” the point when the shutter starts to close, and “F” the final closing of the shutter.
M - N - O - P - Q - over the front side of the shutter blade ear. - - It must be safely rearward. Check to see that drive blade has ample tension to open contacts and that it does not wedge behind the shutter blade in a manner to place excessive friction on the shutter blade. The shutter blade should slide to the end of it’s travel without hesitation when the winding knob is turned slowly back and forth.
The rear blade which cover the lenses and terminates the exposure, will be shown by the line “E” to “F”. If the blade is uniformly slow, the picture will be: D E A F If this blade starts slowly and then accelerates to normal speed, the picture will be: D E A F With this information all being shown by the oscilloscope picture, it should be apparent that the operator must observe carefully the oscilloscope trace on the 1/100 and 1/50 setting before attaching the flash connection.
Written by Dave Hitchcock
