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Manual Operation -Up
If the lateral restraint for a rollout stop/lock is down, push the restraint to the left and let it move up. The lateral restraint is spring-loaded up. It will move up by itself to the load position.
If the lateral restraint for a center stop/lock is down, push down on the lockdown pawl. The pawl releases a lock that holds the restraint down. The lateral restraint is spring-loaded up. It will move up by itself to the load position.
If a vertical restraint is down, lift up the restraint to move it up to the lock position.
Lateral Restraint Operation
The lateral restraint is spring-loaded to the load position. During the load operation, the restraint pivots down when a ULD pushes on it from the outboard side. When the ULD moves completely into the ball panel area, the lateral restraint pivots back up to the load position. ULDs cannot move outboard past the lateral restraint.
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CARGO HANDLING SYSTEM -ROLLOUT AND CENTER STOP/LOCKS -OPERATION

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CARGO HANDLING SYSTEM -RETRACTABLE GUIDE ROLLER/LOCK -INTRODUCTION

Purpose Training Information Point
The retractable guide roller/lock guides and aligns containers The roller on the retractable guide roller/lock is a LRU.
as they move through the cargo door opening. It also gives
lateral and vertical restraint for containers and pallets.

Physical Description
The retractable guide roller/lock is a spring-loaded mechanical unit.
The unit has these parts:
*
Fork

*
Roller

*
Restraint

*
Pedal

*
Bracket.

Location
There is one retractable guide roller/lock in the forward cargo compartment. It mounts to the middle part of the door sill. The aft compartment does not use a retractable guide roller/lock. Fixed guide rollers (not shown) are used.
Functional Description
You control the position of the restraint and the roller manually. Manual movement of the roller or of the vertical restraint lets you set them to the up position. The pedal and fork let you manually lower the restraint and the roller.
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CARGO HANDLING SYSTEM -RETRACTABLE GUIDE ROLLER/LOCK -INTRODUCTION

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CARGO HANDLING SYSTEM -RETRACTABLE GUIDE ROLLER/LOCK -OPERATION

Operation
The retractable guide roller/lock has these positions:
*
Container load -The roller is up and the restraint is down to move containers into the cargo compartment

*
Pallet load and Contain/Pallet Unload -The roller and the restraint are down. Use this position to load pallets or unload containers and pallets.

*
Lock -The roller is down and the restraint is up when cargo movement into or out of the cargo compartment is complete.

You use the pedal to manually lower the restraint. You use the fork to manually lower the roller. Push the pedal all the way down to move the restraint down. Push down on the inboard end of the fork to move the roller down.
You lift the roller or the restraint to put them up.
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CARGO HANDLING SYSTEM -RETRACTABLE GUIDE ROLLER/LOCK -OPERATION

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CARGO HANDLING SYSTEM -LATERAL GUIDE -INTRODUCTION

General
Lateral guides make sure containers stay straight on the forward ball panels for the load or unload operation. Some guides also give vertical restraint and more anchor fittings for pallets.
Seven lateral guides are in the forward cargo compartment. Eight lateral guides are in the aft cargo compartment. There are three different types of lateral guides:
*
Large with forward and aft vertical restraints (forward cargo compartment)

*
Small with heavy weight rail and base (forward cargo compartment)

*
Small with light weight rail and base (aft cargo compartment).

Large Guides
The large lateral guides in the forward cargo compartment give vertical restraint for pallets forward and aft of the guide.
Small Guides
The small lateral guides in the forward cargo compartment are heavier in construction than the ones in the aft compartment. This makes them more resistant to the higher longitudinal loads in the forward compartment.
Location
　
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