TM-9-2330-267-14-P

TRAILER, TANK, WATER: 400 GALLON, 1-1/2 TON, 2 WHEEL M149, M149A1 AND M149A2

TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LISTS)

JULY 1991

TM-9-2330-267-14-P - Page 134 of 354

TM 9-2330-267-14&P

4-45. HUB, WHEEL BEARING, AND BRAKEDRUM MAINTENANCE (Con’t).

d.

INSTALLATION

1.

Position brakedrum (12) and hub (10) on axle (16).

2.

Pack outer wheel bearing cone (8), position in hub (10) and on axle (16), and install inner adjusting nut (7).

e.

WHEEL BEARING ADJUSTMENT

1.

Tighten inner adjusting nut (7) while turning hub (10) and brakedrum (12) until drag is felt.

2.

Rotate hub (10) and brakedrum (12) one turn and loosen inner adjusting nut (7) while rocking hub back and forth

until looseness is felt.

3.

Tighten inner adjusting nut (7) until looseness is no longer felt.

4.

Install keywasher (6) and outer adjusting nut (5) on axle (16). Bend one tab of keywasher over flat of outer

adjusting nut.

5.

Position new gasket (4) and hubcap (3) on hub (10) and install six new lockwashers (2) and screws (1).

6.

Position floor jack under axle (16) and raise enough to remove jackstand.

FOLLOW-ON TASKS:

l Install wheel (para 4-43).

l Adjust service brakes (para 4-32).

TA507046

4-84