Great Wall Pegasus (2006 year). Instruction — part 10
SA-39
Lower arm and Vibration Damper
Disassembly of Lower Arm
1.
Tear down the transverse stabilizer rod;
2.
Tear down the vibration damper;
3.
Disconnect the lower arm ball stud seat and the lower
ball stud;
Remove the cotter pin and the groove nut.
4.
Tear down the lower arm
(a)
Make a mark on the mounting position of the eccentric
gasket.
(b)
Tear down the lower arm.
Suspension System and Automobile Axle (SF/2WD)
Front Suspension (Lower Arm and Vibration Damper)
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SA-40
Change of Lower Arm Shaft Bush and Tube
1.
Tear down the lower arm shaft bush and shaft tube:
(a)
Tear down the large and small pinch-off gaskets of the
lower arm shaft bush first.
(b)
Tear down the lower arm shaft bush and tube.
2.
Mount the lower arm shaft bush and tube.
(a)
Press down the lower arm shaft bush and tube.
(b)
Press down the large and small pinch-off gaskets of the
lower arm shaft bush.
Mount of Lower Arm
1.
Mount on the lower arm
Align the marks on the eccentric gasket and on the frame, and
then screw up the lower arm bolt.
2.
Connection for lower ball stud and lower arm:
Mount the lower ball stud and the lower arm ball stud seat
together.
Fastening torque
(142 0)Nm
3.
Vibration damper mount
Mount the vibration damper on the lower arm bracket;
Fastening torque
(137 0)Nm
Suspension System and Automobile Axle (SF/2WD)
Front Suspension (Lower Arm and Vibration Damper)
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SA-41
4.
Mount the transverse stabilizer rod on the lower arm;
Fastening torque
(23 )Nm
5.
Check the Alignment of Front Wheel;
(See Page SA-6)
Suspension System and Automobile Axle (SF/2WD)
Front Suspension (Lower Arm and Vibration Damper)
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SA-42
Upper Arm
Dismantle of Upper Arm
1.
Tear down the torsion rod spring:
(See page SA-19)
2.
Tear down the upper ball stud:
(a)
Support the upper arm with a jack.
(b)
Tear down the four sets of bolt and nut.
3.
Upper arm dismantle
Tear down the bolts to take down the upper arm.
Change of the Upper Arm Shaft Bush
(Short) and the Upper Arm Shaft Bush
and Tube
1.
Tear down the upper arm shaft bush (short) and the
upper arm shaft bush and tube (long)
(a)
Tear down the torsion bar yoke, the nuts as well as the
large and small pinch-off gaskets of the upper arm shaft
bush.
(b)
Push out the upper arm shaft bush (short) and upper arm
shaft bush and tube.
2.
Mount on the upper arm shaft bush (short) and the upper
arm shaft bush and tube (long):
(a)
Press the upper arm shaft bush and tube (long) in the
upper arm, and encase the upper swing arm shaft, and
then encase the upper arm shaft bush (short).
(b)
Mount on the large and small pinch-off gaskets of upper
arm shaft bush and screw up the nuts.
Fastening torque
(225 )Nm
(c)
Mount on the torsion bar yoke.
Notice: the notch of torsion bar yoke should face
downward;
Fastening torque
(89 )Nm
Suspension System and Automobile Axle (SF/2WD)
Front Suspension (Upper Arm)
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SA-43
Mount of Upper Arm
1.
Screw up the axle nut of upper arm according to the
specified torque;
Fastening torque
(225 )Nm
2.
Mount on the upper arm;
Screw up the three bolts of the upper swing arm shaft according
to the specified torque;
Fastening torque
(178 5)Nm
3.
Connect the upper arm ball stud with the upper arm;
Use four sets of bolt and nut to connect the upper arm ball stud
and the upper arm.
Fastening torque
(27 )Nm
4.
Mount the torsion rod spring;
5.
Check the Alignment of Front Wheel:
(See Page SA-6)
Suspension System and Automobile Axle (SF/2WD)
Front Suspension \(Lower arm, Guide Lever and Transverse Stabilizer Rod)
Guide Lever
(See page SA-26)
Transverse Stabilizer rod
(See page SA-27)
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SA-44
Front Wheel Hub and Steering Knuckle
Element Figure
Suspension System and Automobile Axle (SF/4WD)
Front Wheel Hub and Steering Knuckle
lock ring
cushion block
nut
lock ring
cushion
block
shock
absorber
upper arm
transverse stabilizer rod
bolt
transverse stabilizer
rod gasket
rubber snubber
washer
stabilizer rod limit tube
brake
caliper
rubber
snubber
washer
constant speed
drive shaft
needle
bearing
steering knuckle
steering knuckle
small sleeve
retainer ring
washer-spline of
steering knuckle
shaft
thrust plate-
steering knuckle
inner oil
seal- drive shaft
brake oil pipe bracket
steering
knuckle arm
brake shell
dust cover
oil seal -
front hub
front hub bearing
(inner)
front wheel hub and
front brake disc
stop washer
lock plate
front hub bearing
(out)
steering knuckle
big nut
free wheel hub
noumenon
gasket
free wheel
hub cap
gasket
liner
lower ball stud
Parts that cannot be reused after being used
specified torque
N
m
135-155
6-12
25-29
25-29
70-90
132-152
20-26
180
127-147
132-152
123
SF 4WD
transverse stabilizer rod gasket
transverse stabilizer rod gasket
transverse stabilizer
rod gasket
transverse stabilizer
rod gasket
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SA-45
2.
Tear down the free hub.
3.
Tear down the retainer ring and the axle spine of washer-
steering knuckle:
Tear down the retainer ring with the pliers for retainer ring, and
take down the axle spline of washer-steering knuckle by hand.
4.
Tear down the front wheel hub and front brake disc:
(a)
Prize up the lock plate with screwdriver.
(b)
Tear down the steering knuckle nut with special service
tool to take out the lock plate.
(c)
Tear down another steering knuckle nut with special
service tool to take out the stop washer.
(d)
Tear down the front wheel hub and the front brake disc.
Front Wheel Hub
Disassembly of Front Wheel Hub
1.
Tear down the brake caliper:
(a)
Tear down the Bundy tube from the brake caliper and
block the pipeline of Bundy tube with cork.
(b)
Tear down the brake caliper from the steering knuckle.
Suspension System and Automobile Axle (SF/4WD)
Front Wheel Hub and Steering Knuckle (Front Wheel Hub)
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SA-46
5.
Tear down the front hub, the oil seal and the inner race
of front hub bearing (inner)
(a)
Prize out the oil seal.
(b)
Take out the inner race of front hub bearing (inner).
6.
Inspection on and change of the outer race of front hub
bearing
(a)
Check each bearing:
Wash the inner and outer races of each bearing to check
their wear or damage situation.
(b)
Tear down the outer race of each bearing:
Tap out the outer bearing race with copper bar and hammer.
Notice: bind the inner and outer races of the same
bearing together to prevent from mixing.
7.
Inspection and change for front brake disc
(a)
Check the wear situation of the front brake disc.
(b)
Tear down the bolts that connect the front wheel hub and
the front brake disc.
(c)
Connect the front wheel hub and the front brake disc with
bolts, which are tightened diagonally with moment span-
ner according to the specified torque.
Fastening torque
(70-80)Nm
(d)
Make the dynamic balance test on the dynamic balancer,
and the amplitude value displayed should not be smaller
than 13.5g under the condition that the measuring rotat-
ing velocity is 796 r/m and the locking rotating velocity
of 786 r/m, otherwise, tap the counter balanced clip,
which is 4g each, in the corresponding position, the clip
number should not be more than 4.
(e)
Tap in the new bearing outer race carefully with the
special service tool.
Notice: the inner and outer races of the same bearing
should be changed in one time.
Suspension System and Automobile Axle (SF/4WD)
Front Wheel Hub and Steering Knuckle (Front Wheel Hub)
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SA-47
Assembly of Front Wheel Hub
1.
Mount on the inner race and roller assembly of front hub
bearing as well as the oil seal of front hub.
Coat the lithium base grease of (4-5)mm on the inside surfaces
of the bearing outer race and the front wheel hub, put in the
inner race and roller assembly of front hub bearing (inner),
then plaster the lubricant. Plaster a little lubricant on the lips of
front wheel hub oil seal, and finally tap the front hub in place
with special service tool.
Notice: Do not plaster the lubricant on the face of front
brake disc.
2.
Mount the inner race of front hub bearing (outer) and
roller assembly
Coat 4
5 mm of lithium base grease on the outer race of
bearing, and then put the inner race of front hub bearing (outer)
and roller assembly in it, finally plaster with lubricant.
(c)
Loosen the steering knuckle nut to ensure the front brake
disc can run freely. Screw up the steering knuckle nut
again to the specified torque.
Fastening torque
25Nm
(d)
Mount on the lock plate and mount on another steering
knuckle nut.
Fastening torque
60Nm
3.
Mount the front wheel hub on the steering knuckle
Coat a little lubricant on the oil seal of steering knuckle, and
then mount the front wheel hub and front brake disc on the
steering knuckle, finally mount on the stop washer.
4.
Adjust preload:
(a)
Mount on the steering knuckle nut and screw it up
according to the specified torque.
Fastening torque
(100-120)Nm
(b)
Run the front wheel hub by 1/4-1/3 round so as to seat the
bearings.
Suspension System and Automobile Axle (SF/4WD)
Front Wheel Hub and Steering Knuckle (Front Wheel Hub)
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SA-48
(e)
Hold the bolt of front wheel hub with the spring-tension meter
and drag slowly in the direction of the spot tangent line.
Suitable tension range
(29-54)N
The nut should be screwed up again within the suitable range if the
tension value is overlarge or over small.
(f)
Check the bearing to ensure it cannot leap excessively (the
axial clearance should not be more than 0.05mm).
(g)
Measure the bouncing value of the front brake disc, which
should not be more than 0.11mm, and
5.
Mount the liner and the free hub:
(a)
Tear down the free wheel hub cap firstly.
(b)
Mount the liner and the free hub on the front wheel hub.
Fastening torque
(25-29)Nm
(c)
Mount on the free wheel hub cap.
Fastening torque
(6-12)Nm
6.
Mount the brake caliper:
(a)
Mount the brake caliper on the steering knuckle and screw
up the bolts according to the specified torque.
Fastening torque
123Nm
(b)
Connect the Bundy tube.
Fastening torque
20-22Nm
7.
Check the height of brake liquid level and, if required, add
the brake liquid, exhaust the gas from the brake system.
Suspension System and Automobile Axle (SF/4WD)
Front Wheel Hub and Steering Knuckle (Front Wheel Hub)
(h)
Bend one tooth of lock plate inside and other teeth outside
so as to lock the steering knuckle nut.
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SA-49
Steering Knuckle
Dismantle of Steering Knuckle
1.
Tear down the brake caliper, he front wheel and the front
brake disc.
2.
Tear down the dust cover and the brake shell;
3.
Tear down the steering knuckle arm from the steering
knuckle;
4.
Tear down the vibration damper from the lower arm;
6.
Tear down the steering knuckle:
(a)
Tear down the split pin and groove nut from the position
where the ball stud locates.
(b)
Tear down the steering knuckle from the position where
the ball stud locates with the special service tool.
5.
Tear down the transverse stabilizer rod from the lower
arm;
Suspension System and Automobile Axle (SF/4WD)
Front Wheel Hub and Steering Knuckle (Steering Knuckle)
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SA-50
(c)
Tear down the split pin and groove nut from the position
where the lower ball stud.
(d)
Tear down the steering knuckle from the position where
the lower ball stud with the special service tool, and
(e)
Press down the lower arm to tear down the steering
knuckle.
7.
Tear down the Lower ball stud assembly from the posi-
tion where the steering knuckle locates.
Steering knuckle inspection and change
Inspection on and Change of Steering
knuckle
1.
Check the steering knuckle
Check the steering knuckle with the dye penetration agent to
see weather has crack, if any crack is found, change the
steering knuckle.
2.
Tear down the inner oil seal
drive shaft and the thrust
plate
steering knuckle.
Prize out the inner oil seal
drive shaft from the steering
knuckle with the screwdriver to take out the thrust plate
steering knuckle.
Suspension System and Automobile Axle(SF/4WD)
Front Wheel Hub and Steering Knuckle (Steering Knuckle)
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SA-51
3.
Tear down the needle bearing;
Tap out the steering knuckle small sleeve with hammer and
copper.
4.
Tear down the needle bearing.
Tap out the needle bearing with the hammer and copper bar.
5.
Mount the steering knuckle small sleeve;
Tap in the steering knuckle small sleeve with the special
service tool.
6.
Mount on the needle bearing;
Tap in the needle bearing with the special service tool.
7.
Mount on the thrust plate- steering knuckle;
Coat the needle roller of the needle bearing with the lithium
base grease, and plaster the lubricant on the both sides of the
thrust plate ñsteering knuckle.
Suspension System and Automobile Axle(SF/4WD)
Front Wheel Hub and Steering Knuckle (Steering Knuckle)
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SA-52
8.
Mount the inner oil seal óon the steering knuckle.
Check the oil seal visually, if any deformation or glue lack is
found, change the oil seal
Mount of Steering Knuckle
1.
Mount the lower ball stud on the steering knuckle;
Connect the lower ball stud and the steering knuckle with
bolts, and screw up the bolts according to the specified torque.
Fastening torque
(70-90)Nm
2.
Mount on the steering knuckle
(a)
Coat the lubricant HP-R on the drive shaft.
(b)
Press down the lower arm to mount on the steering
knuckle.
(c)
Mount on the groove nut of lower ball stud and screw up
the nut according to the specified torque, and then mount
on the split pin.
Fastening torque
(132-152)Nm
(d)
Mount on the groove nut of upper ball stud and screw up
the nut according to the specified torque, and then mount
on the split pin.
Fastening torque
(132-152)Nm
Suspension System and Automobile Axle (SF/4WD)
Front Wheel Hub and Steering Knuckle (Steering Knuckle)
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SA-53
3.
Mount the stabilizer rod on the lower arm.
Fastening torque
(20-26)Nm
4.
Mount the vibration damper on the lower arm.
Fastening torque
(127-147)Nm
5.
Mount the steering knuckle arm and the brake oil pipe
bracket on the steering knuckle, and coat the sealing
agent 1271 on the bolt thread.
Fastening torque
180Nm
6.
Mount on the dust cover and the brake shell.
Align the locating hole of dust cover and the groove of the
steering knuckle so as to guarantee the dust cover and the
steering knuckle are concentric.
Fastening torque
(25-29)Nm
7.
Mount the front wheel hub and the front brake disc as well
as the brake caliper.
8.
Check the height of the brake liquid level and, if required,
add the brake liquid, exhaust the gas of the braking
system.
Suspension System and Automobile Axle (SF/4WD)
Front Wheel Hub and Steering Knuckle (Steering Knuckle)
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SA-54
Constant Speed Drive Shaft
Element figure
Suspension System and Automobile Axle (SF/4WD)
Constant Speed Drive Shaft
axially movable three-ball
universal joint
triangular joint
mobile joint
snapping ring
extensible-end large
gripping hoop
extensible-end
dust cover
extensible-end small
gripping hoop
shaf
fixed-end small gripping hoop
fixed-end large gripping hoop
fixed-end dust cover
steel retainer ring
ball-cage type universal joint
inner oil seal- drive shaft
front drive axle shaft
sleeve assembly
Parts that cannot be reused after being used
N
M
specified torque
SF4WD
front speed reducer and
differential assembly
constant speed
drive shaft
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