COUPLE TO TRAILER - CONTINUED

TM 9-2320-312-10

OPERATION UNDER USUAL CONDITIONS - CONTINUED

0005 00

COUPLE TO TRAILER - CONTINUED

10. Pull forward to test completeness of coupling as an initial check. Be prepared to stop if coupling is not complete.

11. Apply tractor parking brakes and perform a visual inspection of fifth wheel. Trailer bolster plate must be on fifth

wheel and locks closed on kingpin. Yoke shaft at front of fifth wheel plate should be fully retracted.

YOKE SHAFT

RETRACTED

12. Remove blocks from trailer wheels.

13. Release trailer and tractor parking brakes.

WARNING

Never tow a trailer above the minimum height required for landing gear to clear the ground. Lifting fifth

wheel and trailer drastically increases the center of gravity of the trailer and increases the chance of a roll-

over. The higher the fifth wheel is raised, the slower the yard tractor should be driven.

Use extreme caution when raising or lowering fifth wheel, especially when tractor/trailer combination is

moving. Raise or lower fifth wheel only enough to achieve adequate clearance for trailer's landing gear

and under ride bar. Failure to follow this warning may cause vehicle to roll over, resulting in injury or

death to personnel.

CAUTION

Do NOT tow an overloaded trailer. Damage to equipment will result.

14. Check load sensing gauge on instrument panel to ensure trailer weight does not exceed 70,000 lb (31,751 kg) limit.

Raise fifth wheel to height necessary for trailer landing gear to clear the ground (Refer to Operate Fifth Wheel Lift).

15. Move ("spot") trailer.

0005 00-9

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