Assembly-continued -706880990

TM 5-4210-233-14&P-1

5-43. FORWARD TANDEM AXLE AND DRIVE UNIT-Continued

(70)

Use a press to install yoke (11) on shaft. Install nut (10) on output shaft (16) and torque to 450 to

650 lb ft (610 to 881 N ).

(71)

Apply silicone sealant adhesive (Item 35, Appendix E) material to mounting surface of axle housing

(83) where differential assembly mounts.

(72)

Using a hoist lift the assembled differential carrier assembly (5) into position on axle housing (83).

Install four washers (8), one nut (7) and three screws (6) in four corner locations around the carrier.

Tighten screws and nut by hand. Do not tighten to specified torque.

(73)

Carefully push the differential carrier into position. Tighten the four fasteners two or three turns

each in a pattern opposite each other. Continue tightening until the final step. Torque nut (7) and

screws (6) to a torque of 150 to 230 lb ft (203 to 212 N ).

(74)

Install other two nut (7), seven washers (8) and five screws (6) and tighten to specified torque.

(75)

Install axle shafts (84 and 85) in axles.

(76)

Install plugs (1, 84 and 85) and breathers (86) in housing.

(77)

Adjust the fork on the differential shift assembly.

(a) Loosen the jam nut (49). Loosen the adjusting screw (48) until adjusting screw (48) does not

touch shift shaft (45).

NOTE

Make sure the adjusting screw (48) does not touch the shift shaft

(45) when the shift collar (37) engages the differential case

(40).APPLY 60 PSI

(b) Connect an air supply to shift assembly (44).

Apply and hold 60 psi (613 kPa) of air

pressure to shift assembly so that shift collar

(37) engages splines of differential case (40).

touches end of shift shaft (28). When top

touches shaft, tighten adjusting screw an

additional one-quarter to one-half turn.

(d) Release the air pressure. Check to see that

the differential (40) is disengaged by holding

the input yoke (23) and rotative output yoke

(11). The output yoke (11) must rotate freely.

(e) Apply and hold 60 psi (613 kPa) of air pressure to shift assembly to make sure the shift collar (37)

engages the splines of the deferential case.

(f) With air pressure applied, when the input yoke is rotated the output yoke must rotate. Torque

jam nut (49) to 40 to 55 lb ft (55 to 75 N ).

(g) Disconnect air pressure and hose from shift assembly.

5-320