(2)
Shim 0.06 inch
(3)
Shim 0.09 inch
(4)
Shim 0.10 inch
B. Adjust Canopy Position A Switch (See detail A, figure 501.)
(1)
With door in actuator ram lock position, insert a 0.09 shim between cam arm rollers and bellcrank surface. Adjust switch to release at this point by loosening nuts, adjusting switch and tightening nuts.
(2)
Rotate arm far enough to actuate switch; remove the 0.09 shim and insert a 0.10 shim.
(3)
Rotate arm to contact shim. Switch shall remain actuated.
(4)
Test switch per paragraph 4. A.
C. Adjust Canopy Position B Switch (See detail B, figure 501.)
(1)
With door in actuator ram lock position, insert 0.06 shim between cam arm rollers and bellcrank surface. Adjust switch to actuate at this point by loosening nuts, adjusting switch and tightening nuts.
(2)
Remove the 0.06 shim. Check that the switch releases when cam arm rollers rotate to contact bellcrank surface.
(3)
Insert 0.05 shim between arm rollers and bellcrank. The switch shall not actuate.
(4)
Test switch per paragraph 4.B.
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Canopy Switch Adjustment 511
52-32-111 Figure 501 (Sheet 1) May 15/68
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511 Canopy Switch Adjustment
Aug 15/68 Figure 501 (Sheet 2) 52-32-111
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BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
3. Canopy Position Switches Test
A. Equipment and Materials
(1)
Shim 0.05 inch
(2)
Shim 0.06 inch
(3)
Shim 0.09 inch
(4)
Shim 0.10 inch
(5)
Test lamp or equivalent to check circuit continuity
B. Test Canopy Position A Switch
(1)
With main cargo door in actuator ram lock position, check for continuity across terminals 1-2 and no continuity across terminals 1-3 of switch.
(2)
Rotate cam arm rollers far enough to actuate switch; then insert a 0.10 shim between cam arm rollers and bellcrank surface.
(3)
Check for continuity across terminals 1-3 and no continuity across terminals 1 and 2 of switch.
(4)
Lift cam arm, replace 0.10 shim with 0.09 shim, then rotate arm to contact shim.
(5)
Check for continuity across terminals 1-2 and no continuity across terminals 1 and 3 of switch.
C. Test Canopy Position B Switch
(1)
With main cargo door in actuator ram lock position, check for continuity across terminals 1-2 and no continuity across terminals 1-3 of switch.
(2)
Insert a 0.05 shim between cam arm rollers and bellcrank surface.
(3)
Check for continuity across terminals 1-2 and no continuity across terminals 1-3 of switch.
(4)
Replace 0.05 shim with 0.06 shim.
(5)
Check for continuity across terminals 1-3 and no continuity across terminals 1 and 2 of switch.
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MAIN CARGO DOOR LOCKED SWITCH - ADJUSTMENT/TEST
1. General
A. The main cargo door locked switch is located in the lower aft end of the door. Access to the switch is gained by removing the aft window and dado panels. Refer to 52-32-81, Main Cargo Door Lining.
B. Prior to door locked switch adjustment/test, ensure lock mechanism is properly adjusted per 52-32-11, Main Cargo Door Assembly.
2. Door Locked Switch Adjustment
A. Adjust Door Locked Switch (See figure 501.)
(1)
Ensure main cargo door is unlocked and pins are fully retracted.
(2)
With switch roller in fully extended position, loosen and adjust switch mounting nuts until switch roller just contacts cam.
NOTE: Ensure that distance between roller surface and switch base is 1.781 (+ 0.030) inches when switch roller is in fully extended position. (See section A-A.)
(3)
Tighten switch mounting nuts.
