Great Wall service chassis and body Manual — part 44
SA-72
(f)
Clean the differential housing surface, mount the axle
driven bevel gear on the differential housing with copper
bar.
Notice: align the assembly marks made when
disassembling when mounting the axle driven bevel
gear, and tap in the driven bevel gear evenly alongside
the direction of circumference.
(g)
Mount on the lock plate and screw on the bolts, then lock
the lock plate with the drift pinch and hammer.
Fastening torque
(70-90)Nm
Notice: the bolts should be screwed up in the diagonal
order in such manner that tighten a little at first, and then
screw up evenly to the specified torque, the lock plate
claw should contact closely the side face of bolt head.
(h)
Press the inner race and roller assembly of bearing
50KB801 in the bearing position at the both sides of
differential housing.
(i)
Put the adjusting gasket in the outer position of the side
bearing of front speed reducer shell.
(j)
Encase another adjusting gasket with the outer race of
bearing 50KB801 in the front speed reducer shell to-
gether with the differential.
Suspension System and Automobile Axle (SF/4WD)
Front Speed Reducer (Disassembly and Assembly of Front Speed Reducer)
(k)
Mount on the right and left cap-differential bearing, and
screw up the bolts with spanner according to the specified
torque.
Fastening torque
78Nm
SA-73
(l)
Run the flange to check the swing difference of axle
driven bevel gear.
Max swing difference
0.07mm
Remark: if the requirement is not satisfied, tear down the axle
driven bevel gear from the differential, and then screw up the
bolts again.
8.
Change the bearing of the long semi-axis:
(a)
Take down the retainer ring with the calipers.
(b)
Tear down the grooved ball bearing from the long semi-
axis.
(c)
Mount on the new grooved ball bearing on the long semi-
axis
(d)
Mount on the retainer ring with calipers.
Suspension System and Automobile Axle (SF/4WD)
Front Speed Reducer (Disassembly and Assembly of Front Speed Reducer)
SA-74
4.
Select the adjusting washer ñdriving bevel gear accord-
ing to the experience, and cover it on the driving bevel
gear; and mount the inner race and roller assembly of
bearing 32307 on the driving bevel gear by pressing.
5.
Mount the adjusting washer and sleeve on the driving
bevel gear, and encase it in the front speed reducer cell
through the flange along with the spline, and screw on
the nuts.
6.
Screw up the main-tooth nuts to the specified torque with
the SST.
Fastening torque
(175 35)Nm
7.
Measure the preload on the driving bevel gear bearing
with torque tester :
New bearing
(1.2-1.7)Nm
Old bearing
(0.9-1.3)Nm
Assembly of Front Speed Reducer
1.
Clean the front speed reducer shell; press the outer
races of bearing 31306 and bearing 32307 to mount
them in the speed reducer shell.
2.
Mount he inner race and roller assembly of bearing
31306 as well as the oil-guard tray in the front speed
reducer shell, then press on the driving bevel gear oil
seal with SST.
Notice: coat a little lubricant on the lip open of the oil seal
before encasing it, and the oil seal that is encase in the
front speed reducer shell should be 1.5 mm away from
housing faces.
3.
Encase the flange and dust cover in the front speed
reducer through the lip open of oil seal and press it by
hand.
Suspension System and Automobile Axle (SF/4WD) Front Speed Reducer (Assembly of Front Speed Reducer)
SA-75
8.
Encase in the differential:
(a)
Put the adjusting gasket in the outer position of bearing
at the side of the front speed reducer shell, and then
Encase the differential in the front speed reducer shell, be
sure there is a play between the driving gear and the
driven gear.
(b)
Tap the axle driven bevel gear with the rubber hammer,
so that the bearing 50KB801 on the differential, together
with the adjusting gasket, contact the mounting part of
the side face of speed reducer closely.
9.
Measure the clearance between the axle driven bevel
gear and the driving bevel gear with the dial indicator to
select the adjusting gasket that satisfy the reasonable
play of (0.15-0.25)mm.
10. Select the adjusting washer for the other side:
The thickness of adjusting gasket should eliminate the clear-
ance between the bearing 50KB801 and the front speed re-
ducer shell, on the other side, the adjusting gasket should not
be over thick because the over-thick gasket will lead in too
large pre-tightening force on the bearing 50KB801 of
differential.
11. Tear down the adjusting gasket and differential, and
encase the new adjusting gasket in the front speed
reducer shell, and another adjusting gasket, together
with the differential housing, should be encased in the
front speed reducer shell correctly.
Suspension System and Automobile Axle (SF/4WD)
Front Speed Reducer (Assembly of Front Speed Reducer)
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