S 715-062

 (3)  
Make sure all of the vertical rollers on the inboard face of the

 guide/restraint rail turn smoothly and freely.Left Vertical and Side Restraint/Caster Unit Operation Check (P29th pallet position)
 S 715-063
 (1)  Lift and move each lockhead restraint in the inboard direction until the lockhead restraint release latch locks the restraint in the extended (vertical) position.
 (a)  Make sure the restraint lifts and locks smoothly.
 S 715-064
 (2)  Push the lockhead restraint release latch in the inboard direction until the restraint unlocks and lowers in the outboard direction to the retracted (horizontal) position.
 (a)  Make sure the restraint unlocks and lowers smoothly.
 S 715-065
 (3)  Make sure all of the casters turn smoothly.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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A
747-400 MAINTENANCE MANUAL
 MAIN DECK CARGO RESTRAINING SYSTEM - INSPECTION/CHECK
_____________________________________________________
 1.  General_______
 A.  One task is given in this section. This task is a visual inspection/check of the cargo restraining system located in the main deck cargo compartment. This task is to make sure that the cargo guides and restraints, which are necessary for the correct restraint of cargo units, are installed and will operate correctly.
 TASK 25-58-00-206-001
 2.  Inspection/Check - Main Deck Cargo Restraining System_____________________________________________________
 A.  References
 (1)  
25-58-00/501, Main Deck Cargo Restraining System

 (2)  
33-35-00/001, Main Deck Cargo Handling Lights

 (3)  
52-32-00/001, Side Cargo Door

 (4)  
52-32-16/401, Side Cargo Door Safety Strut (optional)

 B.  Access
 (1)  Location Zone
 200 Upper Half of the Fuselage

 C.  Prepare for the Inspection/Check
 S 866-002
 (1)  Supply lighting for the main deck cargo compartment, if necessary (Ref 33-35-00/001).
 S 016-003
 WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE AWAY FROM THE DOOR AND
_______ THE DOOR OPENING WHEN YOU OPERATE THE DOOR. FAILURE OF THE LIFT MECHANISM COULD CAUSE THE DOOR TO CLOSE QUICKLY WHICH COULD CAUSE INJURY OR DAMAGE.
 (2)  
Open the side cargo door as necessary (Ref 52-32-00/001).

 S 496-004

 (3)  
Install the side cargo door safety strut (optional)
 (Ref 52-32-16/401).

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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747-400 MAINTENANCE MANUAL
 S 916-005
 WARNING: INSTALL A SAFETY NET OR BARRIER ACROSS THE SIDE CARGO DOOR
_______ OPENING IF DOOR IS TO BE LEFT OPEN LONG ENOUGH TO BECOME A SAFETY HAZARD.
 (4)  Install a safety net or barrier across the side cargo door opening to prevent falls.
 D. Procedure
 S 216-006
 (1)  
Make sure the cargo guides and restraints are installed and locked to the seat tracks and/or floor fittings.

 S 716-007

 (2)  
Do the operational test for the cargo restraining system
 (Ref 25-58-00/501).

 S 216-008

 (3)  
Make sure the cargo guides and restraints operate smoothly and freely.

 S 216-009

 (4)  
Make sure the cargo guides and restraints are free of corrosion and unwanted material.

 S 216-010

 (5)  
Make sure the cargo guides and restraints are not broken.

 E. Return the Airplane to Normal
 S 096-011
 (1)  Remove the side cargo door safety strut (if installed)
 (Ref 52-32-16/401).

 S 416-012
 WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE AWAY FROM THE DOOR AND
_______ THE DOOR OPENING WHEN YOU OPERATE THE DOOR. FAILURE OF THE LIFT MECHANISM COULD CAUSE THE DOOR TO CLOSE QUICKLY WHICH COULD CAUSE INJURY OR DAMAGE.
　
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