42
6. Frame-counter adjusting. 29
Exa IIb
A. Disassembly of camera. 32
1. Take off the back cover 370.20. 32
2. Remove the top-plate 370.51 U1. 32
3. Removal of mechanism 370.53. 32
B. Assembly of camera. 33
1. Insertion of mechanism 370.53. 33
2. Fitting the top-plate 370.51 U 1. 33
3. Check and adjust the distance between the lens mount and the film plane. See Exa II 19
4. Check and adjust the mirror position. 33
C. Elimination of certain faults. 33
1. Cocking segment 370.57 U2 is damaged. See Exa II 20
2. Curtains unserviceable. 33
3. Shutter times checking and adjusting. See Exa II 24
4. Mirror 370.51-2 replacement. 34
5. Transport fails. See Exa I 11
6. Frame-counter adjusting. See Exa IIa 29
Exa 500
A. Disassembly of camera. 36
1. Take off the back cover 370.20. 36
2. Remove the top-plate 370.61 U1. 36
3. Removal of mechanism 370.63. 36
B. Assembly of camera. 36
1. Insertion of mechanism 370.63. 36
2. Fitting the top-plate 370.61 U 1. 37
3. Check and adjust the distance between the lens mount and the film plane. See Exa II 19
4. Check and adjust the mirror position. 37
C. Elimination of certain faults. 37
1. Cocking segment 370.57 U2 is damaged. See Exa II 20
2. Curtains unserviceable. 37
3. Shutter times checking and adjusting. 38
4. Mirror 370.51-2 replacement. 38
5. Transport fails. See Exa I 11
6. Frame-counter adjusting. See Exa IIa 29
Exposure times for EXA II, -IIa, -IIb, -500 39
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