NOTE: Approximately 200 turns to fully open the cam from the
____
fully closed position.
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747-400 MAINTENANCE MANUAL
S 715-015
(3) Make sure the nose cargo door push-pull cam mechanism manual drive operates correctly.
NOTE: Do not exceed 96 in-lbs manual input torque.
____
S 865-017
(4)
Simultaneously hold the control switches until the nose cargo door lift system opens the door a minimum of 3 feet.
S 865-007
(5)
Simultaneously hold the control switches until the nose cargo door lift system is closed.
S 985-008
(6)
Manually drive the push-pull cam actuator to move the cam to the fully closed position.
NOTE: Approximately 200 turns to fully close the cam from the fully
____
open position.
S 715-014
(7) Make sure the nose cargo door push-pull cam mechanism manual drive operates correctly.
NOTE: Do not exceed 96 in-lbs manual input torque.
____
S 865-009
(8)
Simultaneously hold the control switches until the latches are fully closed.
S 865-010
(9)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
On the Nose Cargo Door Power Panel H122:
1) PULL UP CAM
F.
Put the Airplane Back To Its Usual Condition
(1)
Make sure the door is fully closed, latched and locked.
(2)
Remove the electrical power, if it is not necessary.
S 865-011
S 865-012
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S 095-013
(3) Remove the safety barrier across the door opening.
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NOSE CARGO DOOR PUSH-PULL CAM FITTING - INSPECTION/CHECK
________________________________________________________
1. General
_______
A. This procedure only has illustration and data for the wear limits of the components on the push-pull cam fittings. For the removal, installation of the damaged component, refer to AMM 52-31-06/401.
TASK 52-31-09-706-001
2. Examine the Nose Cargo Door Push-Pull Cam Fitting
__________________________________________________
A. Access
(1)
Location Zone
112 Area Forward of Nose Gear Well
(2)
Access Panel
801 Door - Nose Cargo
B.
Procedure
S 226-002
(1) See Figure 601.
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MAINTENANCE MANUAL
SEE A
B A PUSH-PULL CAM C CAM ROLLER
CAM ACTUATOR C A B
B
SUPPORT FITTING B CAM SUPPORT FITTING FWD
A
Push-Pull Cam Mechanism Wear Limits Figure 601 (Sheet 1)
B26926
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