Great Wall service chassis and body Manual — part 18
TF-13
1
2
3
4
5
7
6
5
4
3
2
1
Transfer Box
Disassembly of Transfer Box
10. Take apart the shift convex plate parts (for the electric
shift transfer box)
(a)
Take apart the integrated electric shifting cam from the
transfer box housing.
(b)
Take apart the electric shifting cam from the shift guide
shaft.
(c)
Grip the end of shift guide shaft with soft-jaw vices, and
tap the shaft with a screwdriver until the torsion spring
drops off.
1. front body of transfer box housing
2. shift guide shaft
3. torsion spring
4. electric gearshift
5. gasket
1. transfer box front housing assembly
2. gear ring
3. oil seal
4. transfer box front housing
5. locating pin
6. ball bearing
7. snapping ring
11. Disassemble the transfer box housing assembly
Disassemble the transfer box housing assembly in the manner
as follows.
(a)
Take apart the oil seal.
(b)
Take apart the snapping ring, and pull out the bearing.
(c)
The locating pin may only be taken apart from the transfer
box front housing in the case that the pin is loose or
damaged, and
(d) Where the gear ring needs to be changed, it may be
pressed out from the transfer box housing.
TF-14
7
6
5
4
3
2
1
1. transfer box front housing assembly
2. gear ring
3. oil seal
4. transfer box front housing
5. locating pin
6. ball bearing
7. snapping ring
NMR
2
3
4
1
1. oil seal
2. transfer box front housing
3. gear ring
4. locating pin
Transfer Box
Transfer Box Assembly
Transfer box assembly
1.
Introduction
Please refer to the given instruction of this chapter during
assembly process. And the following items shall be taken
notice on:
(a)
In case that the torque of the threaded parts is required,
torque spanner shall be used to screw up the parts.
(b)
The small parts shall be coated with the lubricant grease
during the mounting process, so that they are immobilized
at the mounting locations.
(c)
SST such as thimble of T-13-54-001 shall be used to press
the oil seal and bearing during the oil seal mount and
bearing mount, do not use the hammer to strike the oil seal
or bearing directly.
2.
Lubricating during assembling
All inner parts without lubricant shall be lubricated with the
suitable lubricant before mounting, so that they can be as-
sembled easily and can supply the original lubricant
performance.
(a)
If the O-ring and oil seal were not lubricated before
mounting, they may be damaged.
(b)
Be sure that the bearing or liner is lubricated completely
before mounting. Because the bearing or liner may be
leaded into damage even though they are run for a very
short time.
(c)
The lips of oil seal and the metal elements that match with
lips shall be lubricated before mounting.
3.
Transfer box housing assembly
Parts taken apart from the transfer box shall be mounted
according to the following approaches:
(a)
If the gear ring needs to be changed, the tooth-type saddle
rear of new gear ring shall be flushed with the gullet of the
transfer box front housing when pressing the new gear
ring. Press in the gear ring as shown in the left bottom
drawing, in which, the chamfering end is firstly pressed
in. if it is ensured the gear ring is not tilted, then fasten the
gear ring tightly on the housing.
(b)
In case there are two locating pins taken apart, mount two
new locating pins into the housing.
(c)
Press the bearing into the transfer box front housing and
mount the snapping ring correctly, and
(d)
Put down the new oil seal as shown in the left bottom
drawing and press it into the housing.
TF-15
1
2
3
4
1. shift guide shaft
2. torsion spring
3. electric shift convex plate
4. gasket
1
2
3
1. torsion spring
2. gasket
3. shift shaft
Transfer Box
Transfer Box Assembly
1
2
3
1. torsion spring
2. gasket
3. shift shaft
4.
Mechanic shift convex plate assembly (for electric shift
transfer box)
The mounting process for the electric shifting element is as
follows:
(a)
Insert the gasket into the inside of free end of the torsion
spring.
(b)
Slide the torsion spring and gasket along with the shift
shaft to the driving tongue and put down the first spring
ring at the left side of the driving tongue (from the
direction of free end of shift shaft).
(c)
Twist the second spring ring of the torsion spring on shift
shaft to the right side of the driving tongue.
TF-16
1
10
9
8
6
5
4
3
2
11
15
14
13
12
17
18
19
20
7
16
1
2
3
Transfer Box
Transfer Box Assembly
1. torsion spring
2. gasket
3. shift shaft
1. planetary mechanism
assembly
2. gasket
3. snapping ring
4. thrust disc
5. sun wheel
6. planetary bracket
7. input shaft assembly
8. input shaft
9. needle bearing
10. bearing shell
11. transfer box
frontbody assembly
12. oil seal
13. locating pin
14. transfer box front body
15. snapping ring
16. transfer box housing
17. bearing
18. bearing gripping loop
19. bolt
20. vent
(d)
Push the torsion spring and gasket backward together as
can as possible
(e)
Mount the electric shifting cam on the shift shaft in such
way that the free end of the driving tongue of the cam is
put in first, fasten the cam driving tongue, which shall be
between the two spring ring of two torsion spring, under
the driving tongue of shift shaft and put it innermost as
can as possible.
(f)
After mounting the toggle fork, then mount the electric
shifting cam assembly in the transfer box housing assembly
5.
Assemble for front body, input shaft assembly and plan-
etary component element.
Mount the following element on the worktable:
(a)
Put the planetary bracket assembly on worktable, and the
end with snapping ring groove shall face upward.
(b)
Mount in the sun wheel and let the part with projecting
end upward, run the gear of the planetary bracket assem-
bly until it completely engages with the sun wheel.
(c)
Flush the projecting teeth, and then mount the thrust disc
into the planetary bracket assembly.
(d)
Mount in the snapping ring to complete the whole plan-
etary bracket assembly.
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