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 357 of 836

TM 9-2320-272-24-4

5-51. GEAR UNIT AND MAIN SHAFT MAINTENANCE (Contd)

d.

Assembly

1.

2.

3.

4.

5.

6.

Position rear planetary carrier (18) in short splined end of planetary carrier drum (17) and install

with snapring (21).

Position rear planetary sun gear (16) in center ring gear (15) until seated and install with

snapring (14).

Install center ring gear (15) in planetary carrier drum (17), until seated against rear planetary

carrier (18).

Install main shaft (22) into rear planetary sun gear (16), ensuring smaller end is installed first.

Install lower planetary sun gear (20) on rear of main shaft (22) with snapring (19).

NOTE

Use oil-soluble grease to hold bearing race and bearing in place.

Install bearing race (13) and bearing (12) on main shaft (22). Ensure lip of bearing race (13) faces

away from center ring gear (15).

5-351