MT-43Gearbox Assembly of Gearbox
(g) Tap the pin in the five-speed gearshift toggle fork with
the drift punch and hammer.
(h) Mount the five reverse gearshift guide shaft in the five-
speed reverse guide block and central link plate, and
(i) Tap the spring cylindrical pin in the five-speed reverse
guide block with drift punch and hammer.
16. Mount the retainer ring gripped by the gearshift fork axle.
Mount the clamp retainer ring with the steel bar and hammer
MT-45
sealed material
Gearbox Assembly of Gearbox
20. Mount the stop ring of the front bearing
(a) Mount the two stop rings in the input shaft bearing and
countershaft front bearing with the split-ring-type pliers.
(b) Mount the coated component elements of front cover.
(c) Coat the sealing agent on the bolt thread, and
(d) Mount and propel tightly the bolts.
Tightening moment(1520)Nm
21. Mount the rear body, gear-change bar and selection bar
and their housings
(a) Coat the sealing materials on the rear body as shown in
the drawing.
(b) Mount the gearshift shaft and gearshift yoke block in the
rear body.
(c) Mount the gearshift catching head in the groove of guide
block, and
(d) Mount the catching head with the rear body together.
(e) Mount and propel tightly the bolts.
Tightening moment
Shang chi(3040)Nm
Tang chi(3045)Nm
MT-46
4WD
Gearbox Assembly of Gearbox
(f) Fasten the rear cover bolts of the four-gear driving
gearbox
Tightening moment:(3045)Nm(Tang tooth)
(g) Mount and propel tightly the setting bolts of the gearshift
yoke block.
Tightening moment(1722)Nm
22. Mount the steel ball spring and plug
(a) Coat the sealing agent on the plug thread.
(b) Mount the steel ball, setting spring and setting spring
plug.
Tightening moment(1722)Nm
23. Check the following items after mounting the rear body
or gearbox
(a) Check the stability of the running input shaft and output
shaft.
(b) Check the gearshift stability of each speed
24. Mount the component elements of the locating mecha-
nism
(a) Mount the black component elements of the locating
mechanism on the side of the five-speed reverse gear.
(b) Mount another component element of locating mecha-
nism and propel it tightly.
Tightening moment(3040)Nm
25. Mount the gearshift cover of the gearbox.
(a) Mount the gearshift cover coated with sealing agent.
(b) Mount six bolts and then tighten them.
Tightening moment(1520)Nm
TF-3Transfer BoxTroubleshooting
Common troubles Causes Resolving approaches
Change the lubricant or supplement the
lubricant volume.
Guarantee the torque of all connecting
elements stand at the specified value.
Open the transfer case to check the
bearing and othe parts whether is weared
or daamaged,if this happened,change
the parts.
Difficulty in mechanic gearshift or
outplace gear engagement
Troubleshooting
Incorrect lubricant or insufficient
lubricant volume.
Looseness of connecting bolt or other
connecting element.
Noise from the transfer box bearing Noise, which is spreader by the transfer
box instead of clutch, engine, drive shaft
and other parts, occurs in each speed. No driving of front wheel in the four-
gear engagementDrive chain breakDisassemble and check the damage of
inner parts, and change the chain. Adjust or repair shift lever.Open the
transfer box to check the toggle fork and
guide shaft, and change the parts as
requirement.Open the transfer box to
check whether the parts is wearied or not,
and, if any, change the weary parts.Open
the transfer box to check whether the
parts is wearied or not, and, if any, change
the weary parts.Open the transfer box to
check whether the parts is wearied or not,
and, if any, change the weary parts. Overlarge loose fit clearance of the
shift toggle fork on the shift guide
shaft.
Wear of the shift toggle fork
assembly including pin and contact
roller.
Wear of the shift cam hub and the
liner.
Attainment of coupling gear Mechanic gearshift seizing at a certain
location Engagement failure of the mechanically
shift transfer boxDamage or unsuitable adjustment of
the shifting mechanism.
Damage or serious wear of the inner
shifting parts, or looseness or
attainment of the shift toggle fork
assembly on the guide shaft.
Unsuitable adjustment of shift lever.Adjust or repair the shift lever mechanism.
Change the seriously wearied parts.
Change the loose or weary parts. Refer to the vehicle manual for correct
operation.
Add the specified oil of given volume.
Open the rear cover of transfer box to check
and changer the damaged parts.
Open the rear cover of the transfer box to
check whether the sliding parts can slide
freely along the axle, if not, dismantle it and
change the damaged parts. Incorrect operation.
Lubricant of inferior quality or
insufficient volume.
Adhesive bonding of shift toggle fork.
Adhesive bonding of the sliding joint
cover, locking sleeve or gear. Mechanic gearshift failure under the
movement of shifting handleBreak or damage of the shift rocker
arm or shift lever.
Damage of the guide plate of shifting
cam;Change the damaged element.
Open the rear cover of the transfer box to
check the damaged element and change
it. Electric gearshift troubleDamage or failure of electrically
controlled element, electric module,
speed sensor, electric motor, electric
clutch, or built-in wire harness.
Damage or worn of shifting cam,
joint cover, locking sleeve, toggle
fork or shift guide axle.Adhesive
bonding shiftRefer to the vehicle usage manual to
diagnose the failure element and change
it as requirement.
Dismantle the weary or damaged parts
and change it as requirement.
Dismantle and check the free movement
of sliding element, and change it as
requirement
TF-4Transfer Box Troubleshooting
Common troubles CausesResolving approaches
Unsuitable tire pressure.
Noise, which is spread by the transfer
box instead of the clutch, engine or other
parts, occurs at each speed.Gear noise.
Damage or wear of chain gear or
chain.Open to check whether there is weary
element or damaged element (including
the odometer gear) and, if any, change
them
Noise occurs in the high-speed or low-
speed four-gear driving.Open to check whether there is wear or
damage, and if any, adjust the tire pressure
to suitable value.
Oil leakage in transfer box. Frame Break of transfer box.
Oil leakage of other element.
Ventilation pipe block
Over-added lubricant or lubricant of
unsuitable brand
Looseness of the bolts on sealing
face.
Sealing glue of different brand or
unused sealing glue.
Oil seal wear or damage.Change the frame.
Check the leakage by wiping dry.
Open and clean it and, if necessary,
change it.
Use the specified lubricant and adjust the
lubricant to suitable volume.
Propel the bolts tightly as requirement.
Use the specified sealing glue and propel
the bolts tightly as required.
TF-9
5 4
3
1
6 2
1. rear body of transfer box
2. flange
3. oil seal
1. sensor bracket
2. bolt
3. speed sensor
4. o-ring
5. sensor assembly
6. bolt
7. gasket
8. rear body of transfer box2 1
5 3
4
4
6
7
8
Transfer BoxDisassembly of Transfer Box
4. gasket
5. nut
6. oil plug
Disassembly of Transfer Box
1. Brief instruction
In case the transfer box is required to be repaired for the
damaged specific element, it shall be taken apart to the degree
on which the damaged element is taken out. And the parts
taken apart from the transfer box, if it doesnít include the
damage element, can exist in the form of sub-assembly or
group instead the individual form, otherwise, the parts will be
taken apart individually.
2. Transfer Box Disassembly
Put the transfer box on the worktable and ensure the rear part
or the rear cover faces upward. Put the wooden block under the
front part of transfer box to keep the transfer box stands
horizontally. The disassembly process is as follows:
(a) Fasten the flange with the torque arm typed T-13-54-
002, screw off the nut to take down the gasket, then take
apart the flange and oil seal.
(b) Take down the two oil plugs from the transfer box body.
As for the electric gearshift transfer box, tear down the
electric shifting element according to the following
disassembly approach:
(a) Tear down the three bolts, gaskets, sensor and clip for
wire harness.
(b) Tear down the sensor assembly and take apart the O-
ring.
(c) Tear down the motor assembly.
TF-10
1. output shaft
2. shift engagement sleeve assembly
3. locking sleeve
4. return spring
5. engagement sleeve
6. snapping ring
7. shift lock hub
8. clutch assembly
9. fastening snapping ring
10.shift guide shaft
11.toggle fork
Transfer BoxDisassembly of Transfer Box
1. front case of transfer box
2. rear output shaft
3. cluch coil assembly
4. clip
5. bearing
6. nut
7. transfer cover assembly
8. mark plat
9. bolt
10. odometer drave gear
11. oil seal
12. oil seal
13. bearing
14. rear cover of transfer box
15. rolling needle bearing
16. shift guide shaft
17. back spring
18. magnet
19. bundle clip10
9
8
12
13
14
157 7
6
5
4
3
16
17
18 2
1
19
911
3. The disassembly approach for rear cover is as follows (above figure)
(a) Dismantle the nine screws and take down the clip of wire harness and
signboard in the same time.
Notice shall be taken to good keeping for the signboard, which includes the
information for the substitutes to be changed.
(b) Pry the frame lightly so that the sealing glue on the surface disengages, and
then take up the transfer box rear cover assembly directly.
(c) As for the electric gearshift transfer box, tear down the oil seal, bearing and
three nuts and clutch coil assembly.
(d) Tear down the snapping ring, pull out the bearing from the rear cover and
take apart the odometer meanwhile.
(f) Pull out the oil seal from the rear cover of the transfer box.
(g) Tear down the magnet from the front body of transfer box.
(h) Take apart the return spring from the shift guide shaft
(i) Clear away the sealing glue on the coupling face of the front housing and
rear cover of transfer box, take notice not to damage the coupling face of
the two housings or cause the materials removed dropping into the transfer
box.
4. Tear down the shifting element connected with the front axle.
Tear down the following parts from the remaining transfer box housing
assembly (electric gearshift).
(a) Electric gearshift assembly, tear down the snapping ring and sliding clutch
sleeve from the shift locking hub.
(b) Tear down the shift-locking hub from the rear output shaft.
(c) Tear down the shift engagement sleeve assembly and shift toggle fork from
the rear output shaft and shift guide shaft. Separate the assemblies one
another and tear down the shift guide shaft.
(d) Disassemble the shift engagement sleeve assembly by taking apart the
snapping ring, engagement sleeve, return spring, and locking sleeve.
(e) A plastic toggle fork that substitutes the metal toggle fork assembly and a
independent contact roller in earlier time.
1
9
8
7
6
5
Q
32
10
11
TF-17
1.25-1.75mm
23
1
12.70mm
13
2
4
4
2
1
5 6
7
83
(e) In the case that the input shaft is taken apart, what need
to do is to fill the needle bearing as shown in the drawing
and press it in the input shaft, meanwhile, press the new
sliding bearing to complete the whole input shaft assembly.
(f) Raise the planetary mechanism assembly to mount it into
the input shaft assembly; encase the thrust gasket and
press in the bearing through the input shaft end. Encase
the fixed bearing in the snapping ring groove of the input
shaft with a snapping ring.
(g) If the transfer box front body is taken apart, press the new
located pin in the front body, and the pressing dimensions
are shown in the drawing.
(h) Put down the oil seal as the drawing shows, and press it
in the front body according to the dimensions shown in
the drawing.
(i) Put down the front body assembly on two wooden blocks
in the way that the coupling face of the front body and the
housing faces upward, so that there is clearance left
between the input shaft assembly and the worktable. Put
down the input shaft and planetary mechanism assembly
in the front body, in which the input shaft shall be
downward. Open the long ends of the snapping ring to
encase input shaft and planetary mechanism assembly
until the snapping ring enters into the external snapping
ring groove of the bearing.
(j) Coat the sealing glue of 1.6mm on the coupling locations
of the front end cover and transfer box assembly, The
glue shall be coated continuously without break and steer
clear of the screwed hole.
(k) Screw up the six bolts.
Fastening torque(2746)Nm
6. Assembly of front output shaft
Mount the following parts:
(a) If the dust cover is taken apart, mount it by pressing.
(b) Encase the input shaft, sealing ring, gasket and nuts in the
transfer front housing.
(c) Insert the torque arm of T-13-54-002 in the flange hole to
screw up the nuts.
Fastening torque(203244)Nm Transfer BoxTransfer Box Assembly
1. needle bearing
2. bearing roller
3. input shaft
1. locating pin
2. oil seal
3. front body of transfer box
4. snapping ring
1. fork-type flange
2. dust cover
3. fork-type flange assembly
4. transfer box housing5. output shaft
6. oil seal
7. washer
8. nut