Great Wall service chassis and body Manual — part 48

SA-88

10. Change for the bearing 7306E and the outer race of

bearing 7607E:

(a)

Tap out the bearing outer race with hammer and copper

bar.

(b)

Press in the new bearing outer race with pressure ma-

chine and SST.

12. Tear down the axle driven bevel gear.

(a)

Tear down the lock plate and bolts on the axle driven

bevel gear.

(b)

Mark the assembly marks on the axle driven bevel gear

and the differential housing.

(c)

Tap down the axle driven bevel gear with rubber hammer

and copper bar.

11. Tear down the inner race and roller assembly of bearing

200719E from differential.

Pull out the inner race and roller assembly of bearing 200719E

from the differential housing with SST.

Suspension System and Automobile Axle (Rear)

(Dismantle of Rear Speed Reducer)

SA-89

Assembly of Rear Speed Reducer

1.

Mount the inner race and roller assembly of bearing

7306E, oil-guard tray and oil seal.

(a)

Put the inner race and roller assembly of bearing 7306E in

the speed reducer housing, and put the oil-guard tray on it.

(b)

Coat the lithium base grease on the position of speed

reducer where oil seal locates and on the lips of oil seal,

align the oil seal and press it to mount.

2.

Mount the flange and dust cover assembly

Encase the flange and dust cover assembly in the speed reducer

housing, then flat it by hand.

3.

Mount the driving bevel gear:

(a)

Put the adjusting washer, jacket on the driving bevel gear,

which is mounted with adjusting washer and inner race

and roller assembly of bearing 7607E, then encase the

driving bevel gear in the speed reducer housing.

(b)

Screw up the nuts to tighten the flange, flat washer and

the driving bevel gear with SST, and the thread locking

agent is required to be coated when screwing.

Tightening moment

(140160)Nm

4.

Measure the pre-tightening torque of the bearing:

New bearing

(1.2-1.7)Nm

The reused bearing

(0.9-1.3)Nm

Remark: if the requirement is not satisfied, change the adjust-

ing washer under jacket until the requirement is satisfied.

(a)

If the measure value is smaller than the standard one,

reduce the thickness of adjusting washer;

(b)

If the measure value is larger than the standard one,

increase the thickness of adjusting washer.

Suspension System and Automobile Axle (Rear)

(Dismantle of Rear Speed Reducer)

SA-90

5.

Mount the axle driven bevel gear on the differential housing:

(a)

Mount on the lock plate and screw up the bolts to the

specified torque.

Tightening moment

(65-95)Nm

Notice: screw up the bolts diagonally.

(b)

Tighten the lock plate with hand hammer and flat head

pinch.

6.

Mount the inner race and roller assembly of bearing

200719E;

Mount the bearing inner race and roller assembly in differen-

tial housing with the pressure machine and SST.

7.

Mount the differential assembly;

Mount the differential in the speed reducer housing.

When mounting the differential that hasnít changed the inner

race and roller assembly of bearing 200719E, ensure the outer

race of the left and the right bearings that has disassembled

should match with their inner racers respectively.

8.

Mount the adjusting ring;

Adjust the clearance between the driving bevel gear and the

axle driven bevel gear to the moderate size. And press the

bearing outer race to flatten it with adjusting ring, and then

screw up moderately.

Notice: the two adjusting rings should be adjusted

synchronically in the movement of same direction.

Suspension System and Automobile Axle (Rear)

(Dismantle of Rear Speed Reducer)

SA-91

9.

Mount on the differential bearing cover:

(a)

Align the assembly marks on differential bearing cover

and the speed reducer housing, and press down the

differential bearing by hand.

(b)

Mount on the double-eared stop washer and the hex nut.

10. Adjust the clearance between the driving bevel gear and

the axle driven bevel gear

(a)

Screw up the hex nuts connecting the differential bearing

cover to the specified torque.

Tightening moment

(80-110)Nm

(b)

Attach the measuring meter seat on the face of speed

reducer housing with the measuring head touching the

teeth face, run the axle driven bevel gear with hand to

measure the teeth engagement clearance, and then com-

pare it with the clearance value in step (d) to decide the

order of the adjusting ring tightening according to the

values.

(c)

Adjust and screw up the adjusting rings with SST.

Tightening moment

(115-135)Nm

(d)

Check the engagement clearance again until the clear-

ance value of the three spots evenly locates on the

circumference of axle driven bevel gear. Otherwise,

adjusting ring adjustment is suggested.

Engagement clearance

(0.13-0.25)mm

Suspension System and Automobile Axle (Rear)

(Dismantle of Rear Speed Reducer)