TM-9-2320-272-23-3

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 3 OF 5

SEPTEMBER 2012

TM-9-2320-272-23-3 - Page 823 of 1469

REMOVAL

WARNING

Do not disconnect air lines or hoses before draining air reservoirs. Small parts under pressure

may shoot out with high velocity. Failure to comply may result in injury or death to personnel.

NOTE

If removing more than one drain valve, tag air lines for installation.

1.

Disconnect air drain line (Figure 1, Item 8) from coupling adapter (Figure 1, Item 7).

2.

Remove two locknuts (Figure 1, Item 2), U-bolt (Figure 1, Item 6), and drain valve coupling (Figure 1, Item 5)

from bracket (Figure 1, Item 1) at rear of right cab access step (Figure 1, Item 4). Discard locknuts.

3.

Remove coupling adapter (Figure 1, Item 7) and drain valve (Figure 1, Item 3) from drain valve coupling

(Figure

1, Item

5).

TM 9-2320-272-23-3

0446

0446-2