Great Wall Socool (2006 year). Service Manual — part 11
SA-55
3.
Tear down the retainer ring from the drive shaft with the
calipers, and take down the washer-steering knuckle
shaft spline.
4.
Tear down the front wheel hub and the steering knuckle
together.
5.
Screw off the nuts that connect the constant speed drive
shaft to take down the constant speed drive shaft.
6.
Check and repair the constant speed drive shaft
Inject the molybdenum disulphide lithium grease of 100-110
g in the end of ball-cage type universal joint and the end of
axially movable tripod universal joint.
The ball-cage type universal joint and the axially movable
tripod universal joint should swing freely, and no clipping
stagnant is allowed. The dust cover should be prevented from
deformation and every gripping loop shall be clamping tightly.
Disassembly of Constant Speed Driving
Shaft
1.
Tear down the brake caliper.
2.
Tear down the free hub
Suspension System and Automobile Axle (SF/4WD)
Constant Speed Driving Shaft
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SA-56
Mount of Constant Speed Drive Shaft
1.
Mount the constant speed drive shaft on the flanges of
the long and short axle shafts.
2.
Mount on the front wheel hub and the steering knuckle.
3.
Mount on the washer-steering knuckle shaft spline, and
then use the caliper to mount on the retainer ring.
4.
Mount on the free hub.
5.
Mount on the brake caliper.
Suspension System and Automobile Axle (SF/4WD)
Constant Speed Driving Shaft
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SA-57
1.
Support up the front of vehicle to tear down the front
wheel and the steering knuckle.
2.
Drain off lubricant in the front speed reducer.
3.
Disconnect the front speed reducer flange and the drive
shaft.
Notice: Mark the assembly marks on the speed reducer
and the drive shaft before disconnecting them.
4.
Tear down the front speed reducer.
5.
Tear down the flange and dust cover:
(a)
Loosen the riveted position on main-tooth nut with the
hammer and chisel.
Front Speed Reducer
Change of driving bevel gear oil seal of front speed reducer
front speed reducer and
differential assembly
oil-guard tray
driving bevel gear oil seal
flange and dust cover
140-210
Parts that cannot be reused after being used
specified torque
N
M
main-tooth nut
Suspension System and Automobile Axle (SF/4WD)
Front Speed Reducer (Change of Driving Bevel Gear Oil Seal of Front Speed Reducer)
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SA-58
(b)
Lock the flange with special service tool to tear down the
main-tooth nut.
7.
Tear down the inner race of conical roller bearing;
If the bearing is damaged, change a new bearing.
8.
Mount the new bearing.
6.
Tear down the driving bevel gear oil seal and oil-guard
tray:
(a)
Tear down the driving bevel gear oil seal with special
service tool.
(b)
Tear down the oil-guard tray.
(c)
Tap down the flange and dust cover with copper bar.
Suspension System and Automobile Axle (SF/4WD)
Front Speed Reducer (Change of Driving Bevel Gear Oil Seal of Front Speed Reducer)
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SA-59
12. Rivet the main-tooth nut.
10. Mount the flange and dust cover:
(a)
Encase the flange and dust cover in the front speed
reducer shell through the clinch of oil seal.
(b)
Lock the flange with the special service tool and screw up
the nuts according to the specified torque.
Fastening torque
(140-210)Nm
11. Adjust the preload of driving bevel gear bearing
Measure the play preload between the driving bevel gear and
the driven bevel gear with the torque tester.
Preload:(1.8-2.4)N
m
Remark: if the requirement is not satisfied, change the
adjusting washer between the adjusting washer jackets and
bearing 32307, see the disassembly and assembly for front
speed reducer, until the requirement is satisfied.
(a)
If the preload is larger than the specified value, change
with a thicker adjusting washer;
(b)
If the preload is smaller than the specified value,
change with a thinner adjusting washer.
9.
Mount the new driving bevel gear oil seal:
(a)
Encase the oil-guard tray.
(b)
Press the new oil seal in the speed reducer shell with the
special service tool; the mounted oil seal should be 1.5
mm away from the end face of the housing.
Notice: Coat the lithium base grease evenly on the lips of
oil seal.
Suspension System and Automobile Axle (SF/4WD)
Front Speed Reducer (Change of Driving Bevel Gear Oil Seal of Front Speed Reducer)
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SA-60
13. Mount the front speed reducer assembly on the frame.
14. Connect the drive shaft to the flange:
(a)
Align the assembly mark and then connect the drive
shaft and the front drive axle flange with four sets of
bolt and nut.
(b)
Screw up the nuts according to the specified torque.
Specified torque
(69-79)Nm
Suspension System and Automobile Axle (SF/4WD)
Front Speed Reducer (Change of Driving Bevel Gear Oil Seal of Front Speed Reducer)
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SA-61
Dismantle of Front Speed Reducer
constant speed drive shaft
front drive axle shaft
sleeve assembly
front drive axle hanger
front speed reducer and
differential assembly
front speed reducer shell hanger
rubber jacket and
shaft tube
constant speed
drive shaft
Parts that cannot be reused after being used
N
M
cpecified torque
Suspension System and Automobile Axle (SF/4WD)
Front Speed Reducer (DisassEmbly of Front Speed Reducer)
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SA-62
1.
Disconnect the front speed reducer flange and the drive
shaft.
2.
Screw off the nuts that connect the constant speed drive
shaft.
3.
Screw off the bolts connecting the rubber jacket and
shaft tube of the front speed reducer cover and the
frame.
4.
Screw off the bolts connecting the front drive axle hanger
assembly and the front speed reducer shell hanger, and
tear down the front speed reducer.
Suspension System and Automobile Axle (SF/4WD)
Front Speed Reducer (DisassEmbly of Front Speed Reducer)
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SA-63
1.
Tear down the front long semi-axis and the front minor
half-shaft
Pull out the front long and minor semi-axis from the front
speed reducer with tool.
2.
Tear down the front drive axle shaft sleeve and screw off
the bolts connecting the half-shaft sleeve.
3.
Tear down the oil seal - front half-shaft:
Tear down the oil seal-front half-shaft with the special service
tool.
Change of Axle Shaft Oil Seal
snapping ring
front minor half-shaft
front speed reducer and differential
oil seal-front half-shaft
front long
semi-axis
snapping ring
88
N
M
specified torque
Parts that cannot be reused after being used)
Suspension System Automobile Axle (SF/4WD)
Front Speed Reducer (Change of Axle Shaft Oil Seal)
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SA-64
5.
Mount on the upper front drive axle shaft sleeve,
Coat the bolt thread with thread locking agent.
Fastening torque
88Nm
4.
Mount on the new oil seal-front half-shaft:
Press in the new oil seal with the special service tool until it
flush with the outer ending of the oil seal, coat moderate
lubricant on the lips of the oil seal.
6.
Mount on the front long semi-axis and the front minor
half-shaft.
(a)
Mount the new snapping ring on the half-shaft.
(b)
Mount on the long semi-axis and the minor half-shaft
with the special service tool.
Suspension System Automobile Axle (SF/4WD)
Front Speed Reducer (Change of Axle Shaft Oil Seal)
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SA-65
Disassembly and Assembly of Front Speed Reducer
Element figure
front minor half-shaft
snapping ring
bearing 31306
front speed
reducer shell
oil-guard tray
flange and dust cover
driving bevel gear oil seal
jacket
oil seal-front half-shaft
Parts that cannot be reused after being used
specified torque
N
M
140-210
bearing 32307
driving bevel gear oil seal
speed reducer cover
adjusting washer
bearing 50KB801
47
cap-differential
bearing
78
lock plate
adjusting washer
half axle gear thrust
gasket
planetary gear shaft
half-axle gear
planetary gear stop gasket
planetary gear
axle driven bevel gear
front differential housing
adjusting gasket
pin
70-90
retainer ring
front long semi-axis
bearing B36Z-10
oil seal-front half-shaft
adjusting washer
snapping ring
Suspension System Automobile Axle (SF/4WD)
Front Speed Reducer (Disassembly and Assembly of Front Speed Reducer)
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SA-66
Disassembly of Front Speed Reducer
1.
Tear down the speed reducer cover:
Screw off the eight bolts connecting the speed reducer cover.
2.
Tear down the front long semi-axis and the front minor
half-shaft:
Tear down the front long semi-axis and the front minor half-
shaft from the speed reducer assembly with the special service
tool.
3.
Tear down the front drive axle shaft sleeve
Screw off the four bolts connecting the front drive axle shaft
sleeve.
4.
Tear down the oil seal ó front half-shaft;
Tear down the oil seal ófront half shaft with the special service
tool.
5.
Check the swing difference of the axle driven bevel gear;
Run the flange to measure the axle driven bevel gear with the
dial-indicating lamp.
Swing difference)
0.07mm
Max swing difference: 0.07 mm
In case the swing difference is more than 0.07 mm, change the
compete package of driven bevel gear.
Suspension System Automobile Axle (SF/4WD)
Front Speed Reducer (Disassembly and Assembly of Front Speed Reducer)
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SA-67
6.
Check the teeth-clearance of the driving bevel gear and
the axle driven bevel gear:
(a)
Install the dial-indicating lamp and ensure the axial line
of measuring head is vertical with the contact teeth face.
(b)
Run the flanges, and record the clearance values of
driving bevel gear and the axle driven bevel gear.
Specified clearance range
(0.15-0.25)mm
Remark: the inspection should be conducted at no less than
three equally divided spots on the circumference of the axle
driven bevel gear.
7.
Check the engagement trace of the axle driven bevel
gear.
(See page SA-76)
8.
Tear down the flange and dust cover:
(a)
Loosen the riveted position of main-tooth nut with the
hammer and chisel.
(b)
Lock the main-tooth flange with SST to tear down the
main-tooth nut.
Suspension System Automobile Axle (SF/4WD)
Front Speed Reducer (Disassembly and Assembly of Front Speed Reducer)
(c)
Tap down the driving bevel gear flange and dust cover
with copper bar.
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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
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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)
.
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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)
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