(b)  
Turn the retaining pin handle counterclockwise to the vertical position.

 (c)  
Pull the retaining pin handle to retract the retaining pin.

 (2)  
Retract the coupling plungers at the ends of the rail.

 (3)
Put the guide/restraint rail in its position in the rail supports.

 S 434-094
 S 424-095
 NOTE: The arrow at each end of the rail must align with the arrow
____
 on the floor.

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 S 434-096
 (4)  
Extend the coupling plungers to lock the guide/restraint rail to the adjacent rail.

 S 434-097

 (5)  
Extend the retaining pins to lock the guide/restraint rail to the rail supports:

 (a)  
Push the retaining pin handle to extend the retaining pin through the hole in the guide/restraint rail.

 (b)  
Turn the retaining pin handle clockwise to the horizontal position.

 I. Install the Retractable Guide/Restraint Rails (Side Cargo Door)
 S 434-098
 (1)  Pull the pin-release handles on the rail in the outboard direction to retract the retaining pins.
 NOTE: The pin-release handles must stay locked in the outboard
____
 position.

 S 424-099
 (2) Put the guide/restraint rail in its position in the rail supports.
 NOTE: The arrow at the end of the rail must align with the arrow on
____
 the floor.

 S 434-100
 (3)  
Push the pin-release handles in the inboard direction to extend the retaining pins through the rail supports.

 S 434-101

 (4)  
Connect the hinge link to the fitting at the end of the rail with the quick-release lockpin.

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 J. Install the Retractable Rollout Guide/Stops (Side Cargo Door)
 S 434-102
 (1)
Lift the shear-plunger levers to retract the shear-plunger studs.

 S 424-103

 (2)  
Engage the tension studs on the bottom of the rollout guide/stop with the holes in the seat track and floor fitting.

 S 434-104

 (3)  
Move the rollout guide/stop approximately 0.50 inch in the forward or aft direction.

 NOTE: The shear-plunger studs must align with the holes in the seat
____
 track.

 S 434-105
 (4)  Lower the shear-plunger levers to extend the shear-plunger studs into the holes in the seat track.
 K. Install the Transition Guide Rail (P29th pallet position)
 S 424-110
 (1)  Attach the aft end of the transition guide rail to the
 guide/restraint rail at STA 2250-2360:

 (a)  
Align the end fittings of transition guide rail with the end fitting of the guide/restraint rail.

 (b)  
Install the pivot pin and the spring pin.

 S 424-111
 (2)  Attach the forward end of the transition guide rail to the
 guide/restraint rail at STA 2130-2200:

 (a)  
Align the end fitting of the transition guide rail with the hole in the guide/restraint rail.

 (b)  
Install the quick-release lockpin.

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 S 214-112
 (3)  Measure the clearance between the two end fittings at the aft end of the transition guide rail as shown in Fig. 401 (Detail O).
　
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