Dead Center Check of the Locking Mechanism
Figure 502B/TASK 52-32-00-991-002-B
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R R R R 1. On the cargo doorframe FR58A: - install the rigging pin 98D52307525200 into the rigging hole of the door frame and the shaft lever bolt.
2. On each frame of the cargo door:
R R R R - install the rigging pin 98D52307525100 into the rigging hole of each door frame and the bellcrank bolt.
- make sure that the rigging pins are removed.
R R 3. On the cargo door: - pull the door handle away in the UNLOCKED direction and measure the force necessary with a SPRING BALANCE 20 DAN (48 LBF).
R R - turn the latching handle up to the fully UNLOCKED position and measure the force necessary with a SPRING BALANCE 20 DAN (48 LBF).
4. On the control panel:
- set the selector to the CLOSE position and hold it.
5. On the cargo door:
R R - move the latching handle down to the LOCKED position and measure the force necessary with a SPRING BALANCE 20 DAN (48 LBF).
On the cargo doorframe FR58A:or:
-
the rigging pin must engage in the rigging hole of the shaft lever bolt if the upper dead center is correctly adjusted.
On each frame of the cargo door:
-
the rigging pin must engage in the rigging hole of the bellcrank bolt if the lower dead center is correctly adjusted.
-each latching unit is free andmovable.
On the cargo door:
-
the locking cams of the locking shaftrelease the latching hooks and thevent door opens.
-
the force must be less than 18 daN (40.4656 lbf).
-
the latching hooks disengage from thelatch fittings and the cargo doormoves in the open direction.
-
the force must be less than 18 daN (40.4656 lbf).
On the cargo door:
-
the cargo door actuators retract andclose the cargo door.
On the cargo door:
-
the latching hooks engage with thelatch fittings and lock the cargodoor in the closed position.
-
the force must be less than 18 daN (40.4656 lbf).
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ACTION RESULT -------------------------------------------------------------------------------
-push the door handle in the - the vent door closes, recess of the door structure - the locking cams block the latching and measure the force necessary hooks,
R with a SPRING BALANCE 20 DAN - the door handle is locked. R (48 LBF). - the force must be less than 18 daN (40.4656 lbf).
R (5) Install the access panels 826AR, 826BR and 826CR.
**ON A/C 001-049, 053-099, 101-149, 201-299, 301-399,
Subtask 52-32-00-720-052-A
C. Clearance Check of the Latching Hooks
(Ref. Fig. 501/TASK 52-32-00-991-001-B)
(1)
Open the cargo door (Ref. TASK 52-30-00-860-001) until it is in the vertical position.
(2)
Remove the access panel 826AR to get access to the latching hooks of the closed cargo door.
(3)
Set the selector of the control panel to the CLOSED position and hold it during the clearance check.
NOTE : This operation is necessary to keep the cargo door in the
____ fully closed position when it is not latched.
(4) Do this test:
NOTE : If necessary, adjust the position of the released latching
____
hooks (Ref. TASK 52-32-11-820-002).
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ACTION RESULT -------------------------------------------------------------------------------
1. Between the cargo door and the Between the cargo door and the cargo cargo door sill: door sill:
-
measure the clearance between - the minimum clearance must be 2.0 mm the rear of the latching hooks (0.0787 in.). and the door sill structure.
-
measure the clearance between - the minimum clearance must be 3.0 mm the top of the latching hook (0.1181 in.). and the roller of the latch fitting.
(5)
Make sure that the cargo door is correctly closed and locked (Ref. TASK 52-30-00-860-002) when the test is completed.
(6)
Install the access panel 826AR.
**ON A/C 051-052,
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