Disassembly and Reassembly.

roughness, and wear. Replace worn or defective

(7) Attach a suitable hoist to support the bevel

bearings.

gear shaft.

(2) Inspect the bevel gear and pinion for

(8) Remove bolts (2), and remove bearing

chipped, pitted, broken or worn teeth. Replace a

c a g e (3) using two 1/2 i n c h 1 3 ( N C ) f o r c i n g s c r e w s

damaged or excessively worn gear set. TB-ENG

(4) as shown.

364 may be used as a guide for determining gear

(9) Slide the bevel gear (1, fig. 6-106) and the

replacement.

bevel gear shaft (5) out of the left bearing cage, far

e n o u g h to permit removal of bolts (4) securing the

(3) Inspect the bearing cages for cracks,

breaks, and other damage. Replace defective or

b e v e l gear (1) to the flange on the bevel gear shaft

(5).

damaged bearing cages.

d. Bevel Gear and Pinion Setting.

( 1 0 ) Move the bevel gear shaft into the right

(1) G e n e r a l . The bevel pinion is free to float in

s t e e r i n g clutch compartment and lift out as shown

the transfer case of the transmission and seeks its

in figure 6-108.

o w n running position with respect to the bevel gear

(11) Lift out the bevel gear.

in forward speeds, and is located by the rear

b e a r i n g in reverse. The only adjustments necessary

a r e the bevel gear shaft bearing preload (subpara 2

a n d 3 below), and the backlash (subpara 4 below),

between the bevel gear and pinion. The correct

a m o u n t of backlash for each bevel pinion, installed

at the factory, is marked on the end of the bevel

pinion. If the pinion is not marked, refer to table 1-

4. After adjusting the bevel gear shaft bearing

p r e l o a d , t h e b a c k l a s h s h o u l d b e set as described

below.

(2) B e v e l g e a r s h a f t bearing adjustment

(transmission removed).

NOTE

It is preferred that the bevel gear shrift bearing preload

be set with the transmission removed. This permits

adjusting the bearings to a definite preload.

(a) Install a full shim pack under the

bearing cage farther from the bevel gear. Tighten

Figure 6-108. Removing bevel gear shaft.

all bolts.

(12) Install the bevel gear and shaft in the

(b) I n s t a l l t h e o t h e r b e a r i n g c a g e w i t h o u t

r e v e r s e order of removal. Adjust the bevel gear and

shims and tighten the bolts evenly while slowly

pinion backlash as described in subparagraph d

rotating the bevel gear until a torque, given in table

below.

1 - 4 is required to rotate it.

b. Disassembly and Reassembly.

(c) R o t a t e t h e b e v e l g e a r s h a f t b e a r i n g s

several times before making the final adjustment.

(1) Remove the bearing cones from the shaft

w i t h a hydraulic puller, a puller, a bearing pulling

(d) To determine the torque required to

attachment and a step plate.

rotate the shaft, weld a strap of metal across a

(2) Heat the bearing cones in oil prior to

s t e e r i n g clutch hub retaining nut and weld a small

reassembly,

n u t on the strap; then thread the retaining nut onto

t h e bevel gear shaft, and apply a torque wrench to

(3) Remove the cups from the bearing

cages using a puller, two adapters and a bearing cup

the small nut.

pulling attachment with an adapter,

(e) Use a thickness gage as shown in figure 6-

(4)

Chill

the

cups

dry

ice

prior

1 0 9 to determine the clearance between the flange

reassembly.

o f the bearing cage and the face of the bevel gear

c. lnspection and Repair.

c a s e at each bolt location making sure the clearance

(1) Inspect all bearings for corrosion,

is the same all around the cage.

6-87