TM-9-2320-273-10

TRUCK, TRACTOR, LINE HAUL; LIGHT EQUIPMENT TRANSPORTER; TRUCK CHASSIS; MEDIUM EQUIPMENT TRANSPORTER

TECHNICAL MANUAL; OPERATOR’S MANUAL

DECEMBER 2012

TM-9-2320-273-10 - Page 339 of 452

Table 1. Preventive Maintenance Checks and Services (PMCS) - Continued.

ITEM

NO.

INTERVAL

ITEM TO BE

CHECKED OR

SERVICED

PROCEDURE

EQUIPMENT NOT

READY/AVAILABLE

IF:

37

After

Drive Belts

a. Check for frayed or

cracked belts

(Figure 20, Item 1).

Any drive belt

missing, broken,

or cracked to

belt ﬁber. More

than one crack

1/8 in. (3.2 mm)

deep (50% belt

thickness)

within a 6 in.

(152.4 mm)

length. Frays

greater than 2

in. (50.8 mm)

or excessive

play.

b. Check belt

adjustment.

Deﬂection should not

be more than 1/2 in.

(12.7 mm). If belts

are loose, notify your

supervisor.

Deﬂection more

than 1/2 in.

(12.7 mm).

c. Check pulleys

(Figure 20, Item 2)

for damage or cracks.

Any pulley with

large chips or

cracked belt

walls.

1

2

Figure 20. Drive Belts.

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