ASSEMBLY - CONTINUED - TM-9-2320-269-34-10935

TM 9-2320-269-34-1

REAR-REAR AXLE DIFFERENTIAL - CONTINUED

ACTION

LOCATION

ITEM

REMARKS

ASSEMBLY - CONTINUED

NOTE

Pinion gear bearing cones preload is established by choosing the correct size spacer that is located between the

bearings, and tightening the drive pinion nut. The spacer is available in different thicknesses to obtain correct

bearing preload. Steps 46 thru 48 outline the procedure for establishing correct bearing preload.

46.

Bearing cage (1)

Yoke (3) a.

Put on.

and pinion

b. Put assembly in vise with soft jaws so

gear (2)

gear (2) is held tight.

47.

Washer (4) and

Rotate cage (1) and, at the same time,

nut (5)

screw on nut (5) and tighen to 325 ft-lb

(441 N m) of torque using 1 7/8-inch

deep well socket and torque multiplier

wrench with 314-inch drive.

Be sure to turn cage while tightening

nut so bearing cones will line up and

seat. Bearing rollers mut be seated

against face of cone.

48.

Pinion assembly (6)

Bearing cage (1)

Measure bearing preload by

wrapping a

strong cord or soft wire around cage (1)

and attaching free end to suitable spring

scale.

Turn cage (1) and at the same time,

pull on spring scale and note reading.

Scale reading should show 3-8 lb

(1.35 - 3.6 kg).

NOTE

When preload does not agree with specification (3 - 8 lb, 1.35 - 3.6 kg), bearing load may be increased by installing

a thicker spacer. If necessary, go back to disassembly, steps 24 thru 29, to remove spacer. Measure thickness of

old spacer with micrometer and select a different spacer. Spacers are available in various thicknesses, in

gradustions of 0.001-inch (0.025-mm). Closer adjustment can be made by working spacer to desired thickness

using an emery cloth on flat surface. Be sure to clean off emery cuttings before installing spacer (steps 44 thru 46).

49.

Two bearing caps (7)

Two bearing Check that rollers are in contact with

cones (8)

cone face using thickness gage ribbon.

There must be no clearance at ends of

rollers.

2-918