TM-9-2320-260-20

TRUCK, 5-TON, 6X6, M809 SERIES (DIESEL)

TECHNICAL MANUAL; UNIT MAINTENANCE

APRIL 1995

TM-9-2320-260-20 - Page 117 of 1337

TM 9-2320-260-20

Table 2-1. Unit Level Preventive Maintenance Checks and Services (Contd).

ITEM TO

NOT FULLY

ITEM

INTERVAL

NO.

CHECK/

PROCEDURE

SERVICE

MISSION

CAPABLE IF:

39

Semi-

Rear

a.

Inspect spring leaves, retaining clips, and center

Springs are

annual

springs

bolts for breaks and looseness. Tighten if loose; replace

broken or loose.

and

if broken (para. 7-17).

spring

b.

Inspect both front and rear spring wear pads (6) for

seats

wear. Replace if rear spring (5) is rubbing spring bracket

(4) (para. 7-17).

c.

Test spring seat bearing freeplay by:

1. Placing a jack under spring seat bracket (9) and

raising wheel off ground (para. 9-2).

2. Place a prybar between U-bolt saddle (2) and lifting

pin (3).

3. Pull up on prybar. If there is any free play, adjust

spring seat bearing (para. 7-18).

d.

Inspect spring U-bolts (1) for looseness. If loose,

U-bolts are loose

tighten 300-400 lb-ft (407-542 N•m).

or broken.

40

Semi-

Torque

a.

Inspect torque rods for cracks, looseness, and

Torque rods are

annual

rods

damage. Tighten nuts 350-400 lb-ft (475-542 N•m).

cracked, loose, or

Replace if cracked or broken.

darnaged.

b.

Check torque rods (7) for damage or worn bearings.

1. Place flat end of bar between torque rod (7) and

mounting bracket (8).

2. Push on end of bar until hook end moves 4-6 in.

(10-15 cm).

3. Release pressure on bar. Replace if torque rod (7)

does not return to its original position (para. 7-20).

2-30