TM-9-2330-335-14-P

SEMITRAILER, TACTICAL, BREAKBULK/CONTAINER TRANSPORTER, 22-1/2 TON, RESET M871R, M871A1R AND M871A2R

TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE MANUAL (INCLUDES REPAIR PARTS AND SPECIAL TOOLS LIST)

SEPTEMBER 2008

TM-9-2330-335-14-P - Page 530 of 640

TM 9-2330-335-14&P

0091-4

0091

PREVENTIVE MEASURES

00091

These conditions can be eliminated by taking the following preventive measures:

1.

Specify trailer upper couplers and bracing which are appropriate for the trailer application. Please note that

the allowable limits for upper coupler plate bowing provided in SAE recommended practice J700b are

maximum allowable deflections on worn, in-service units before repairs are required. New upper couplers

should be designed to withstand normal loading with minimal deflection and should NOT be designed to

deflect to the SAE limits. (Refer to Holland Service Bulletin XL-SB20 for additional information on upper

coupler specifications.)

2.

Use fifth wheel greases with EP (extreme pressure) characteristics.

3.

Conduct regular inspections and repairs of upper couplers and fifth wheels which exhibit any of these problems. A good

guideline for these inspections can be found in the Holland publication

How to Get the Most From Your Holland Fifth

Wheel

, and is available from any Holland warehouse distributor.

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