(a)  
Push the release trigger of the master latch lock handle.

 (b)  
Make sure you observe these conditions: 1) The master latch lock handle is in the unlocked (open)

 position. 2) The two pressure relief doors are open.
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 3)  The master latch lock sectors have turned outboard to clear the latch cams.
 (c)  Push the master latch lock handle to the locked (closed) position.
 (d) Make sure you observe these conditions: 1) The master latch lock sectors have rotated inboard so that the inboard heel of the sector is inboard of the latch cam throat and the outboard end of the sector extends into the cutout in the lower beam of the door.
 2) The two pressure relief doors are closed. 3) The master latch lock handle and the trigger are flush with the door skin.
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 FORWARD/AFT CARGO DOOR - REPAIRS
________________________________
 1.  General_______
 A. This procedure contains two tasks:
 (1)  
A task that lubricates the latches and the hooks

 (2)  
A task you can use to drill rigging pin holes in the hook support fittings.

 TASK 52-34-00-608-001
 2.  Lubricate the Latches and Hooks (Fig. 801)_______________________________
 A. General
 (1)  
There can be times when the door will not latch electrically. Friction between the parts of the latch and hook mechanisms parts can cause this. This procedure lubricates these parts to allow the door to latch.

 (2)  
Adjust the latch and hook mechanism to allow normal operation when it is possible.

 B.
Consumable Materials

 (1)  
D00013 Grease, MIL-G-23827

 C.
References

 (1)  
52-34-00/501, Forward/Aft Cargo Doors

 (2)  
AIPC 52-34-06 Fig 2, AIPC 52-34-07 Fig 2

 D.
Access

 (1)  
Location Zone 122 Forward Cargo Container Compartment, Forward Half 142 Aft Cargo Container Compartment

 (2)  
Access Panel
 821R Door - Forward Cargo Compartment
 822R Door - Aft Cargo Compartment

 E.
Procedure

 (1)  
Open the cargo door (Ref 52-34-00/001).

 (2)  
Put grease on the hooks and latches (Fig 801).

 (3)  
Close the door electrically (Ref 52-34-00/001).

 S 838-005

 (4)  
Adjust the hook and latch mechanisms when it is possible (Ref 52-34-00/501).

 S 018-002
 S 648-003
 S 418-004
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MAINTENANCE MANUAL

LATCH 
SEE  A 
HOOK 
(2 LOCATIONS) 
SEE  A 
USE A LARGE AMOUNT 
OF GREASE TO LUBRICATE 
THE HOOK SURFACES 
(2 LOCATIONS) 
USE A LARGE AMOUNT 
OF GREASE TO LUBRICATE 
THE LATCH CAMS
(8 LOCATIONS) 
A 
Cargo Door Repair 
Figure 801 

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