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 604 of 640

TM 9-2330-335-14&P

0106-4

0106

REPLACEMENT PROCEDURES

000106

NOTE

Cleanliness is most important. After removing the brake drum to be replaced, make sure all

mounting surfaces on the spoke wheel or hub are clean. All foreign material should be removed to

ensure proper attachment of the brake drum.

1.

Assemble the brake drum to the hub.

NOTE

Hubs using an outboard mount drum do not have to be removed from the axle to facilitate brake

drum replacement. It is suggested, however, that the torque on the spindle nut be checked to make

sure it is correct.

2.

Make sure the brakes are fully released and adjusters are fully backed off.

3.

Place the assembly on the axle and adjust the bearings.

4.

Inspect the lining location on the brake surface.

5.

Adjust the brakes.

NOTE

All adjustments should be made when brake drums are cold with brakes fully released.

a.

Standard Slack Adjusters. Raise the axle until the wheel can be turned freely. If the slack adjuster has a positive lock

mechanism, depress the locking sleeve to disengage it. Turn the adjusting screw until the brakes begin to drag, and

then back off the adjustment so that the wheel turns freely. When adjustment is completed, the adjusting screw nut

should be positioned so the locking sleeve engages the adjusting nut screw. In the case of the ball indent type, the ball

should engage the indent on the plunger shaft.

b.

Automatic Slack Adjusters. Require initial manual adjustment. Consult the manufacturer’s literature

adjustment procedure.

END OF TASK

END OF WORK PACKAGE