Great Wall service chassis and body Manual - part 43

SA-68

10. Tear down the inner race of bearing 31306 with SST;

If the bearing is damaged, change with a new bearing.

11. Tear down the cap-differential bearing.

12. Take out the differential.

13. Take down the outer race of bearing 50KB801 and mark

clearly the left and right parts to avoid of confusion during

reassembling.

9.

Tear down the driving bevel gear oil seal and the oil-

guard tray:

(a)

Tear down the oil seal from the driving bevel gear with

SST.

(b)

Take out the oil-guard tray.

right

left

left

Suspension System Automobile Axle (SF/4WD) 

Front Speed Reducer (Disassembly and Assembly of Front Speed Reducer)

14. Tear down the adjusting gaskets and clearly mark the left

and right to avoid of confusion during re-assembling.

right

SA-69

15. Tear down the driving bevel gear.

Inspection on and Change of Front Speed

Reducer

1.

Change the bearing 32307 on driving bevel gear

(a)

Press out the inner race and roller assembly of bearing

32307 with the special service tool.

(b)

Press in the new inner race and roller assembly of bearing

32307 with SST.

2.

Change the outer race of bearing 32307:

(a)

Tap down the outer race of bearing 32307 with the copper

bar and hammer.

(b)

Press in the new outer race of bearing 32307 with the

SST.

Suspension System Automobile Axle (SF/4WD) 

 Front Speed Reducer (Disassembly and Assembly of Front Speed Reducer)

.

SA-70

4.

Tear down the inner race and roller assembly of the two

bearings 50KB801 from the differential housing.

Tear down the inner race and roller assembly of bearing

50KB801 with SST.

5.

Tear down the axle driven bevel gear:

Tear down the bolts and lock plate by tapping lightly the axle

driven bevel gear with the copper until tear them down.

3.

Change the outer race of bearing 31306:

(a)

Tap down the outer race of bearing 31306 with copper bar

and hammer.

(b)

Press in the new outer race of bearing 31306 with SST.

Remark: the inner race of the bearing should be changed with

the outer race together.

6.

Differential disassembly

(a)

Tap out the pin with SST.

Suspension System Automobile Axle (SF/4WD)

 Front Speed Reducer (Disassembly and Assembly of Front Speed Reducer)

SA-71

(b)

Tear down the planetary gear shaft to take out the planetary

gear, planetary gear stop gasket, half-axle gear and the

half axle gear thrust gasket

7.

Differential assembly mount

(a)

Clean the differential housing.

(b)

Encase the half-axle thrust gasket in the differential

housing after covering on the half-shaft gear.

(c)

Run the half-axle gear to encase the planetary gear and

planetary gear stop gasket, and put on the planetary gear

shaft.

Remark: The half-axle gear and the planetary gear should run

freely without stagnant.

(d)

Measure the clearance between the half axle gear thrust

gasket and differential housing.

Push the planetary gear to the inside and then measure

the clearance between half-axle gear thrust gasket and

the differential housing with the dial-indicating lamp.

Suitable clearance range: (0.4-0.75)mm

Remark:If the clearance fails to fall within the above-

mentioned range, change the half-axle gear thrust gasket,

and ensure that the thrust gaskets on the both sides are

same thick.

(e)

Tap the pin in the pinhole of differential housing and the

planetary gear shaft with SST, and rivet the hole port so

as to prevent the pin from missing.

Suspension System Automobile Axle (SF/4WD)

 Front Speed Reducer (Disassembly and Assembly of Front Speed Reducer)