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 319 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:

p. Check service brakes

for pulling, grabbing,

or other abnormal

operation by moving

vehicle approximately

10 ft.

Brakes do not

stop vehicle.

EXTERIOR

13

Before

Air Dryer

Check automatic drain

valve (Figure 7, Item 1)

operation. With engine

running, when air

pressure reaches 120 psi

(827 kPa), a sharp burst

of air will be heard at

the drain valve each

time the compressor

unloads.

Automatic drain

valve

inoperative.

1

Figure 7. Automatic Drain Valve.

TM 9-2320-273-10

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