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 563 of 1469

INSTALLATION

CAUTION

When positioning front axle, ensure spring U-bolts are properly aligned so spring center bolt

heads enter alignment holes in front axle spring seats. Axle anchor pins must align to upper

spring seat brackets or damage to equipment will result.

1.

Place front axle (Figure 3, Item 13) on bottle jack.

2.

Position right and left upper spring seats (Figure 3, Item 16) over anchor pins (Figure 3, Item 15) on front axle

(Figure 3, Item 13).

NOTE

Assistant will help with Step (3).

3.

Raise bottle jack until spring U-bolts (Figure 3, Item 1) are through upper spring seats (Figure 3, Item 16) and

springs (Figure 3, Item 14) rest on upper spring seats (Figure 3, Item 16).

4.

Slide right and left lower spring seats (Figure 3, Item 8) through four U-bolts (Figure 3, Item 1) and install with

eight lockwashers (Figure 3, Item 9) and nuts (Figure 3, Item 10). Tighten nuts (Figure 3, Item 10)

350

to

400

lb-ft (475 to 542 N·m).

5.

Install propeller shaft (Figure 3, Item 7) and propeller shaft flange (Figure 3, Item 5) on differential flange

(Figure

3,

Item

4) with eight screws (Figure 3, Item 6) and locknuts (Figure 3, Item 3). Tighten locknuts

(Figure

3,

Item

3) 32 to 40 lb-ft (43 to 54 N·m).

6.

Install shock absorber (Figure 3, Item 2) on right and left lower spring seats (Figure 3, Item 8) with washer

(Figure 3, Item 11) and locknut (Figure 3, Item 12).

TM 9-2320-272-23-3

0404

0404-6