TM-9-2320-272-24-4

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

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 4 OF 4

JUNE 1998

TM-9-2320-272-24-4 - Page 408 of 836

TM 9-2320-272-24-4

NOTE

Chain is necessary to prevent main and output flanges from

rotating when removing hardware.

Tag main and front output flanges for installation.

16.

Install chain on main flange (5) and output flange (11) with two washers (9), screw (10), two

washers (3), screw (2), and nut (4).

17.

Remove locknut (8) and washer (7) from main input shaft (6). Discard locknut (8).

18.

Remove locknut (1) and washer (13) from front output shaft (12). Discard locknut (1).

19.

Remove screw (10), two washers (9), nut (4), washer (3), screw (2), washer (3), and chain from main

flange (5) and output flange (11).

20.

Using puller, remove main flange (5) and output flange (11) from main input shaft (6) and front

output shaft (12).

NOTE

Perform steps 21 and 22 for vehicles equipped with PTO.

21.

Remove six screws (15), washers (16), and PTO (14) from transfer case (17).

22.

Remove setscrew (19), PTO drive gear (18). and seal (20) from main input shaft (6). Discard

seal (20).

5-402