This document provides instructions for removing and installing the front case of a semi-automatic gearbox. Key steps include separating the front and rear cases, removing and installing various clutch shaft assemblies in the proper sequence, and checking clutch shaft end float to ensure correct assembly tolerances. Special tools and consumables like threadlocker and gasket material are required.
Caterpillar cat 324 d l excavator (prefix tsn) service repair manual (tsn0000...fhhsjdkmem
This document provides the disassembly and assembly procedures for a travel motor on excavator models 324D and 324D L. The disassembly procedure involves 28 steps to remove components from the travel motor including the head, springs, plates, seals, bearings, and housing cover. The assembly procedure instructs to install components in reverse order, noting that all seals and gaskets must be replaced and components cleaned before assembly. Proper tooling and torque specifications are listed for selected assembly steps.
Caterpillar cat 324 d l excavator (prefix trh) service repair manual (trh0000...fhhsjdkmem
This document provides the disassembly and assembly procedures for a 324D LN excavator travel motor. It includes 28 steps for disassembly that remove components like the motor head, seals, plates, discs, bearings, and housing pieces. The 28-step assembly procedure reverses the disassembly process and includes notes on cleaning, marking parts, and using specialty tools.
Caterpillar cat 324 d l excavator (prefix t2d) service repair manual (t2d0000...fhhsjdkmem
The document provides instructions to disassemble a final drive. Key steps include:
1. Removing the cover and gears from the final drive housing.
2. Using tools to remove the carrier assembly and planetary gears.
3. Pressing the shafts out of the carrier assembly and disassembling it.
Caterpillar cat 324 d l excavator (prefix pyt) service repair manual (pyt0000...fhhsjdkmem
This document provides instructions for disassembling and assembling the final drive of a 324D L Excavator. The multi-step process involves removing components such as gears, shafts, seals and housings. Cleanliness is emphasized. Tools including link brackets and seal installers are listed. Bearings are pressed into place and shim thickness is determined to set proper bearing preload. Seals are installed using a special tool. Anti-seize compound is applied to surfaces.
Caterpillar cat 324 d l excavator (prefix mnd) service repair manual (mnd0000...fhhsjdkmem
The document provides instructions for disassembling the final drive of a 324D excavator. It involves removing over 30 individual parts in a specific sequence, including the cover, gears, carrier assembly, planetary carrier, shafts and seals. Cleanliness is important to prevent dirt entering during disassembly. Tools including link brackets, eyebolts and retaining ring pliers are required. The procedure removes components step-by-step and identifies each part and subassembly that must be dismantled from the final drive.
Caterpillar cat 324 d l excavator (prefix sym) service repair manual (sym0000...fhhsjdkmem
This document provides disassembly instructions for the final drive of a 324D L and 324D LN excavator. The 31-step procedure includes removing the final drive housing, cover, gears, carriers, shafts, seals and other components. Special tools are required to remove retaining rings, pins and other fasteners. Cleanliness is important to prevent dirt from entering during disassembly. Weights of components are provided to assist with removal.
Caterpillar cat 324 d l excavator (prefix lab) service repair manual (lab0000...fhhsjdkmem
This document provides the disassembly procedure for the final drive of a 324D L Excavator. It begins by removing the final drive from the machine and securing it to a repair stand. It then describes removing over 30 individual parts from the final drive including gears, shafts, carriers, seals, and housings through the use of various tools like retaining ring pliers, link brackets, and eyebolts. The procedure concludes by describing how to remove the final drive sprocket if necessary.
Crown wf3000 series forklift service repair manualfhhsjdkmem
1. The document is a service manual for the WF3000 series forklift trucks that provides information on maintenance, repair, troubleshooting, and specifications for the trucks.
2. It includes sections covering lubrication and adjustments, hydraulics, drive unit, electrics, brakes, steering, mast, cylinders, and electrical diagrams.
3. The manual provides maintenance technicians with the information needed to service the trucks, such as recommended lubricants, component locations, repair instructions, and electrical schematics.
Caterpillar cat 324 d l excavator (prefix tsn) service repair manual (tsn0000...fhhsjdkmem
This document provides the disassembly and assembly procedures for a travel motor on excavator models 324D and 324D L. The disassembly procedure involves 28 steps to remove components from the travel motor including the head, springs, plates, seals, bearings, and housing cover. The assembly procedure instructs to install components in reverse order, noting that all seals and gaskets must be replaced and components cleaned before assembly. Proper tooling and torque specifications are listed for selected assembly steps.
Caterpillar cat 324 d l excavator (prefix trh) service repair manual (trh0000...fhhsjdkmem
This document provides the disassembly and assembly procedures for a 324D LN excavator travel motor. It includes 28 steps for disassembly that remove components like the motor head, seals, plates, discs, bearings, and housing pieces. The 28-step assembly procedure reverses the disassembly process and includes notes on cleaning, marking parts, and using specialty tools.
Caterpillar cat 324 d l excavator (prefix t2d) service repair manual (t2d0000...fhhsjdkmem
The document provides instructions to disassemble a final drive. Key steps include:
1. Removing the cover and gears from the final drive housing.
2. Using tools to remove the carrier assembly and planetary gears.
3. Pressing the shafts out of the carrier assembly and disassembling it.
Caterpillar cat 324 d l excavator (prefix pyt) service repair manual (pyt0000...fhhsjdkmem
This document provides instructions for disassembling and assembling the final drive of a 324D L Excavator. The multi-step process involves removing components such as gears, shafts, seals and housings. Cleanliness is emphasized. Tools including link brackets and seal installers are listed. Bearings are pressed into place and shim thickness is determined to set proper bearing preload. Seals are installed using a special tool. Anti-seize compound is applied to surfaces.
Caterpillar cat 324 d l excavator (prefix mnd) service repair manual (mnd0000...fhhsjdkmem
The document provides instructions for disassembling the final drive of a 324D excavator. It involves removing over 30 individual parts in a specific sequence, including the cover, gears, carrier assembly, planetary carrier, shafts and seals. Cleanliness is important to prevent dirt entering during disassembly. Tools including link brackets, eyebolts and retaining ring pliers are required. The procedure removes components step-by-step and identifies each part and subassembly that must be dismantled from the final drive.
Caterpillar cat 324 d l excavator (prefix sym) service repair manual (sym0000...fhhsjdkmem
This document provides disassembly instructions for the final drive of a 324D L and 324D LN excavator. The 31-step procedure includes removing the final drive housing, cover, gears, carriers, shafts, seals and other components. Special tools are required to remove retaining rings, pins and other fasteners. Cleanliness is important to prevent dirt from entering during disassembly. Weights of components are provided to assist with removal.
Caterpillar cat 324 d l excavator (prefix lab) service repair manual (lab0000...fhhsjdkmem
This document provides the disassembly procedure for the final drive of a 324D L Excavator. It begins by removing the final drive from the machine and securing it to a repair stand. It then describes removing over 30 individual parts from the final drive including gears, shafts, carriers, seals, and housings through the use of various tools like retaining ring pliers, link brackets, and eyebolts. The procedure concludes by describing how to remove the final drive sprocket if necessary.
Crown wf3000 series forklift service repair manualfhhsjdkmem
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2. It includes sections covering lubrication and adjustments, hydraulics, drive unit, electrics, brakes, steering, mast, cylinders, and electrical diagrams.
3. The manual provides maintenance technicians with the information needed to service the trucks, such as recommended lubricants, component locations, repair instructions, and electrical schematics.
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2. Sections cover hydraulics, the drive unit, electrics, brakes, steering, the mast, lift chains, and fork tines. Symbols, terms, and part numbers are defined to assist maintenance personnel.
3. Technicians should follow all safety notices, use recommended lubricants, and apply proper torques when servicing components to prevent injuries and ensure safe operation.
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Caterpillar cat 324 e l excavator (prefix kte) service repair manual (kte0000...fhhsjdkmem
This document provides instructions for disassembling and assembling the travel motor on 324E and 324E L excavator models. The disassembly process includes removing 28 components from the travel motor housing including the head, brake piston, plates, springs, seals and bearings. The assembly section outlines 28 steps to reinstall these components in reverse order using various tools. Special care must be taken when working with pressurized components and springs to avoid injury.
Caterpillar cat 324 e l excavator (prefix jcz) service repair manual (jcz0000...fhhsjdkmem
This document provides instructions for disassembling and assembling the travel motor on 324E and 324E L excavator models. The disassembly process involves removing 28 components from the travel motor including the head, brake piston, plates, springs and seals. The assembly is the reverse of the disassembly with instructions to lubricate parts, align markings and install components in the correct orientation using various tools. Proper assembly is important to prevent damage and ensure correct functioning of the travel motor.
Caterpillar cat 324 e excavator (prefix kte) service repair manual (kte00001 ...fhhsjdkmem
This document provides instructions for disassembling and assembling the travel motor on 324E and 324E L excavator models. The disassembly process includes removing 28 components from the travel motor housing including the head, brake piston, plates, springs, seals and bearings. The assembly section outlines 28 steps to reinstall these components in reverse order using various tools. Special care must be taken when working with pressurized components or parts under spring force.
Caterpillar cat 324 e excavator (prefix jcz) service repair manual (jcz00001 ...fhhsjdkmem
This document provides instructions for disassembling and assembling the travel motor on 324E and 324E L excavator models. The disassembly process involves removing 28 components from the travel motor including the head, brake piston, plates, springs and seals. The assembly is the reverse of the disassembly with instructions to lubricate parts, align markings and install components in the correct orientation using various tools. Proper assembly is important to prevent damage and ensure correct functioning of the travel motor.
Caterpillar cat 324 d ln excavator (prefix trh) service repair manual (trh000...fhhsjdkmem
This document provides the disassembly and assembly procedures for a 324D LN excavator travel motor. It includes 28 steps for disassembly that remove components like the motor head, seals, plates, discs, bearings, and housing pieces. The 28-step assembly procedure reverses the disassembly process and includes notes on cleaning, marking parts, and applying thread lock compound to seals before reinstalling components in their original positions.
Caterpillar cat 324 d ln excavator (prefix sym) service repair manual (sym000...fhhsjdkmem
This document provides disassembly instructions for the final drive of a 324D L and 324D LN excavator. The 31-step procedure includes removing the final drive housing, cover, gears, carriers, shafts, seals and other components. Special tools are required to remove retaining rings, pins and other fasteners. Cleanliness is important to prevent dirt from entering during disassembly. Weights of components are provided to assist with removal.
Caterpillar cat 324 d ln excavator (prefix ejc) service repair manual (ejc000...fhhsjdkmem
The document provides instructions for disassembling the final drive of an excavator. Key steps include:
1. Marking the final drive for alignment and securing it to a repair stand.
2. Removing bolts and lifting devices to extract the cover and internal gears and shafts.
3. Using punches and presses to separate planetary carrier assemblies and remove their internal components.
4. Lifting out carriers, gears, and other parts until the final drive is fully disassembled.
Caterpillar cat 324 d ln excavator (prefix btk) service repair manual (btk000...fhhsjdkmem
This document provides the disassembly and assembly procedures for a travel motor on excavator models 324D L and 324D LN. The disassembly procedure involves 28 steps to remove components from the travel motor including the head, seals, springs, plates, discs, bearing races, and housing cover. The assembly procedure reverses the disassembly steps and provides notes on cleaning, applying thread lock compound and lubricant, and ensuring parts are returned to their original positions.
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Crown we2000 series forklift service repair manualfhhsjdkmem
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Crown st3000 series forklift service repair manualfhhsjdkmem
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Crown sc3200 series forklift service repair manualfhhsjdkmem
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2. Sections cover hydraulics, the drive unit, electrics, brakes, steering, the mast, lift chains, and fork tines. Symbols, terms, and part numbers are defined to assist maintenance personnel.
3. Technicians should follow all safety notices, use recommended lubricants, and apply proper torques when servicing components to prevent injuries and ensure safe operation.
Crown sc3018 forklift service repair manualfhhsjdkmem
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Caterpillar cat 324 e l excavator (prefix kte) service repair manual (kte0000...fhhsjdkmem
This document provides instructions for disassembling and assembling the travel motor on 324E and 324E L excavator models. The disassembly process includes removing 28 components from the travel motor housing including the head, brake piston, plates, springs, seals and bearings. The assembly section outlines 28 steps to reinstall these components in reverse order using various tools. Special care must be taken when working with pressurized components and springs to avoid injury.
Caterpillar cat 324 e l excavator (prefix jcz) service repair manual (jcz0000...fhhsjdkmem
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Caterpillar cat 324 e excavator (prefix kte) service repair manual (kte00001 ...fhhsjdkmem
This document provides instructions for disassembling and assembling the travel motor on 324E and 324E L excavator models. The disassembly process includes removing 28 components from the travel motor housing including the head, brake piston, plates, springs, seals and bearings. The assembly section outlines 28 steps to reinstall these components in reverse order using various tools. Special care must be taken when working with pressurized components or parts under spring force.
Caterpillar cat 324 e excavator (prefix jcz) service repair manual (jcz00001 ...fhhsjdkmem
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Caterpillar cat 324 d ln excavator (prefix sym) service repair manual (sym000...fhhsjdkmem
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2. 27 - Driveline
06 - Semi-Automatic Gearbox
90 - Front Case
27 - 216 9823/1700-1 27 - 216
Check (Condition)
Consumables
Description Part No. Size
4101/0250 0.01 LJCB Threadlocker
and Sealer (Medium
Strength)
4101/0251 0.05 L
1. If the gearbox cases are to be renewed, be
sure to install blanking plugs and adaptors as
required. Inspect the original cases and identify
the blanking plug and adaptor positions. Transfer
the plugs and adaptors to the new cases. Apply
JCB Threadlocker and Sealer to the threads
before installation.
Consumable: JCB Threadlocker and Sealer
(Medium Strength)
Remove and Install
For: PS750 MK3 ..................... Page 27-216
For: PS750 MK4 ..................... Page 27-222
(For: PS750 MK3)
Special Tools
Description Part No. Qty.
End Float Setting Tool
Kit
993/70100 1
Torque Wrench
(10-100Nm)
993/70111 1
Adaptor 993/78200 1
Consumables
Description Part No. Size
JCB Multi-Gasket 4102/1212 0.05 L
4101/0250 0.01 LJCB Threadlocker
and Sealer (Medium
Strength)
4101/0251 0.05 L
Remove
With the gearbox removed from the machine, place
suitable wooden blocks to securely support the
assembly.
1. Remove the suction strainer.
2. Remove the drain plug and discard its sealing
washer.
3. Remove and discard the oil filter.
3.1. Note: Some gearbox installations may have
a remotely situated oil filter.
4. Remove the main shaft lubrication oil pipe. Refer
to Figure 728.
4.1. The pipe is connected at the rear case and
at the torque converter housing.
5. Remove the mainline pressure switch and
pressure test point assembly. Refer to Figure
728.
3. 27 - Driveline
06 - Semi-Automatic Gearbox
90 - Front Case
27 - 217 9823/1700-1 27 - 217
Figure 728.
B
C A
A Oil filter
B Oil pipe
C Pressure switch and pressure test point
6. If required remove the speed sensor.
7. Remove the torque converter housing as follows:
Refer to Figure 729.
7.1. Remove the bolts 1 that attach the torque
converter housing.
7.2. Lift the torque converter housing from the
gearbox.
Figure 729.
D
E
D Bolt 1
E Torque converter housing
8. Remove the gearbox oil pump.
9. Remove the solenoid control valves.
10. Remove the applicable 4WD (Four Wheel Drive)
clutch shaft assembly.
11. Separate the front and rear cases as follows:
Refer to Figure 730.
Figure 730.
H
E
F
J
G
E Torque converter housing
F Torque converter relief valve
G Bolt 2
H Rear case
J Brake disc
11.1. Temporarily install the torque converter
housing with 2 bolts.
11.2. Put the gearbox in the vertical position
such that the torque converter housing
faces down.
11.3. Remove the torque converter relief valve
ball, spring and sealing washer.
11.4. Remove the bolts 2 (x20) and lift the rear
case.
11.5. Make sure you remove the bearing outer
cups from inside the case.
11.6. Keep the cups together with their
associated bearing.
11.7. Note: Make sure that the internal
components remain installed in the front
case. If necessary, rotate the brake disc on
the output shaft back and forth slightly to
dislodge the internal components.
11.8. Remove and discard the sealing O-rings
from the front case. Refer to Figure 731.
12. Remove the clutch and shaft assemblies in the
sequence that follows: Refer to Figure 731.
4. 27 - Driveline
06 - Semi-Automatic Gearbox
90 - Front Case
27 - 218 9823/1700-1 27 - 218
Figure 731.
L
M
P
K
N
K O-ring (x3)
L Layshaft clutch assembly
M Reverse clutch assembly
N Main shaft clutch assembly
P Input clutch assembly
12.1. Layshaft clutch assembly.
12.2. Reverse clutch assembly.
12.3. Main shaft clutch assembly.
12.4. Input clutch assembly.
13. Note the positions of the end shaft spacers.
Remove and put labels on the spacers to enable
assembly in their original locations. Be sure
to remove the bearing outer cups from inside
the case. Keep the cups together with their
associated bearing.
Install
1. Install the clutch shaft spacers (x4) in their
original positions inside the front case. Refer to
Figure 732.
Figure 732.
Q
Q
Q
Q
Q Clutch shaft spacers (x4)
2. Install the clutch shaft assemblies as follows:
Refer to Figure 733.
Figure 733.
L
M
P
R
K
N
K O-ring (x3)
L Layshaft clutch assembly
M Reverse clutch assembly
N Main shaft clutch assembly
P Input clutch assembly
R Screwdrivers
2.1. Lubricate all the bearings.
2.2. Make sure that the piston ring seals have
been replaced, lubricated and installed in
their correct positions.
2.3. Install the input clutch and the main shaft
together into the front case.
2.4. With the help of a second person slightly
raise the input clutch and the main shaft.
With the two units raised, install the reverse
clutch.
2.5. Install the layshaft assembly.
2.6. Make sure that all bearings are correctly
installed and that the relevant gears are
engaged correctly.
2.7. With two small rods (or screwdrivers) align
all the friction and counter plates of the main
shaft clutch.
3. Assemble the front and rear cases as follows:
Refer to Figure 734.
5. 27 - Driveline
06 - Semi-Automatic Gearbox
90 - Front Case
27 - 219 9823/1700-1 27 - 219
Figure 734.
HJ
G
G Bolt 2
H Rear casing
J Brake disc
3.1. Install the new o-rings (x3) in the front case.
Lubricate the O-rings. Make sure they stay
in position.
3.2. Apply liquid gasket to the front case mating
face.
Consumable: JCB Multi-Gasket
3.3. Before you install the rear case make sure
that the bearings are lubricated and the
piston ring seals are lubricated and installed
at their correct position.
3.4. Make sure that the clutch bearing outer
cups are installed to the rear case and the
output shaft assembly.
3.5. Make sure that all the friction and counter
plates in the main shaft clutch are aligned.
3.6. Carefully lower the rear case into position,
take care to align the output gear splines
with the main shaft clutch friction and
counter plates.
3.7. Gently rotate the brake disc back and forth
to enter the plates, if the case does not drop
down onto the dowels, do not use the bolts
or force as the plates will be damaged.
3.8. Apply sealant to the threads of the bolts that
attach the front and rear cases.
Consumable: JCB Threadlocker and Sealer
(Medium Strength)
3.9. Tighten the bolts to the correct torque value.
Note: The end float of the clutch shafts is controlled
without the use of shims. This is achieved by using
a `set-right' tolerancing system during manufacture.
After assembly the clutch shaft end floats must
be checked to make sure correct assembly
and tolerances. This is particularly important if
components such as clutch shafts or gearbox cases
have been replaced.
1. The main shaft airline adaptor 993/78200 can be
used to hold the clutch pack with air pressure, the
pack needs to be aligned with the transfer gear
assembly first.
Special Tool: Adaptor (Qty.: 1)
2. Use the service tool to measure the end float of
all clutch shafts.
Special Tool: End Float Setting Tool Kit (Qty.: 1)
3. Measure the input shaft end float. Refer to Figure
735.
Figure 735.
V
S
T
X
U
W
S Base plate
T Support pillar
U Adaptor
V Torque wrench
W DTI
X Splined wrench
3.1. Assemble the adaptor to the end of the
shaft.
3.2. Install the base plate to the gearbox with a
bolt.
3.3. Install a splined wrench (which can be
manufactured from an old torque converter
hub) over the shaft.
3.4. Assemble the DTI (Dial Test Indicator) and
the torque wrench.
Special Tool: Torque Wrench (10-100Nm)
(Qty.: 1)
3.5. Set the DTI to zero and the torque wrench
to the specified torque value.
Torque: 35 N·m
3.6. Rotate the input shaft back and forth with
the splined wrench, to seat the bearings,
and lift and depress the torque wrench.
6. 27 - Driveline
06 - Semi-Automatic Gearbox
90 - Front Case
27 - 220 9823/1700-1 27 - 220
3.7. Make a record of the reading on the DTI.
3.8. The end float must be within the range
specified.
Length/Dimension/Distance: 0.02 –0.16
mm
4. Measure the reverse shaft end float. Refer to
Figure 736.
Figure 736.
WZ
Y
U
V
S
S Base plate
U Adaptor
V Breakback torque wrench
W DTI
Y Sealing plug
Z Washer
4.1. Remove the sealing plug and the washer.
4.2. Assemble the adaptor to the end of the
shaft.
4.3. Install the base plate to the gearbox with a
bolt.
4.4. Assemble the DTI and the torque wrench.
4.5. Set the DTI to zero and the torque wrench
to the specified torque value.
Torque: 35 N·m
4.6. Rotate the reverse shaft back and forth with
the splined wrench on the input shaft, to
seat the bearings, and lift and depress the
torque wrench.
4.7. Record the reading on the DTI.
4.8. The end float must be within the range
specified.
Length/Dimension/Distance: 0.02 –0.16
mm
5. Measure the layshaft shaft end float. Refer to
Figure 737.
Figure 737.
W
V
US
S Base plate
U Adaptor
V Torque wrench
W DTI
5.1. Assemble the adaptor to the end of the
shaft.
5.2. Install the base plate to the gearbox with a
bolt.
5.3. Assemble the DTI and the torque wrench.
5.4. Set the DTI to zero and the torque wrench
to the specified torque value.
Torque: 35 N·m
5.5. Rotate the reverser shaft back and forth
with the brake disc on the output shaft, to
seat the bearings, and lift and depress the
torque wrench.
5.6. Record the reading on the DTI.
5.7. The end float must be within the range
specified.
Length/Dimension/Distance: 0.02 –0.16
mm
6. Measure the main shaft shaft end float. Refer to
Figure 738.
7. 27 - Driveline
06 - Semi-Automatic Gearbox
90 - Front Case
27 - 221 9823/1700-1 27 - 221
Figure 738.
W
V
U
S
S Base plate
U Adaptor
V Torque wrench
W DTI
6.1. Assemble the adaptor to the end of the
shaft.
6.2. Install the base plate to the gearbox with a
bolt.
6.3. Assemble the DTI and the torque wrench.
6.4. Set the DTI to zero and the torque wrench
to the specified torque value.
Torque: 35 N·m
6.5. Gain access through the 4WD cover to
rotate the main shaft. For 2WD (Two Wheel
Drive) transmissions use an airline and the
adaptor tool.
6.6. Rotate the main shaft back and forth to seat
the bearings, and lift and depress the torque
wrench.
6.7. Record the reading on the DTI.
6.8. The end float must be within the range
specified.
Length/Dimension/Distance: 0.02 –0.18
mm
7. Install the 4WD clutch assembly or output
shaft assembly (permanent 4WD variant) (if
applicable).
8. Install the gearbox oil pump.
9. Install the torque converter housing as follows:
9.1. Apply liquid gasket to the mating face of the
torque converter housing.
Consumable: JCB Multi-Gasket
9.2. Put the torque converter in position against
the front case. Make sure that the dowels
are engaged with the torque converter
housing.
9.3. Apply sealant to the threads of the bolts that
attach the torque converter.
Consumable: JCB Threadlocker and Sealer
(Medium Strength)
9.4. Tighten the bolts to the correct torque value.
9.5. Install the torque converter relief valve ball
and tapered spring. Refer to Figure 739.
9.6. Make sure that the larger diameter of the
tapered spring is located securely over the
spigot on the plug.
9.7. Use a new sealing washer, then install and
tighten plug.
Figure 739.
F
F Torque converter relief valve
10. Install the solenoid valve manifold block and the
solenoid valves.
11. Install the suction strainer.
12. Install the drain plug with a new sealing washer.
13. Tighten the drain plug to the correct torque value.
Torque: 203 N·m
14. Install the main line pressure switch and pressure
test point assembly with a new sealing washer.
15. Tighten the locknut to the correct torque value.
16. Install a new oil filter.
17. Install the main shaft lubrication oil pipe at the
gearbox case and torque converter housing.
8. 27 - Driveline
06 - Semi-Automatic Gearbox
90 - Front Case
27 - 222 9823/1700-1 27 - 222
18. If removed, install the speed sensor.
Table 290. Torque Values
Item Description Nm
C Mainline pressure switch and
pressure test point locknut
28
D Bolt 1 56
G Bolt 2 56
(For: PS750 MK4)
Consumables
Description Part No. Size
JCB Multi-Gasket 4102/1212 0.05 L
Before removal
Before splitting the front and rear case do the
following procedures.
• Remove the oil filter. Refer to (PIL 27-06-39).
• Remove the suction strainer. Refer to (PIL
27-06-40)
• Remove the solenoid control valves. Refer to
(PIL 27-06).
• Remove the 4WD yoke and seal. Refer to (PIL
27-06-95).
• Remove the speed sensors. Refer to (PIL
27-06-27).
• Remove the torque converter relief valve. Refer
to (PIL 27-14-09).
Cleanliness is of the utmost importance when you
service the gearbox. All precautions to prevent any
ingress of dirt, grit etc. must be taken.
• Remove deposits of dirt, grit and oil from the
outer cases and components.
• Prevent dirt, grit and debris falling into the
gearbox.
• Put caps on all open ports, hoses, pipes and
orifices.
Use lifting equipment to locate the gearbox in a
work cradle as shown. Do not try to disassemble the
gearbox further unless it is safely located in a work
cradle.
Figure 740.
A
A Cradle
Remove the external oil feed pipe. Refer to (PIL
27-06-85).
Remove
Front and rear case
1. Remove all the case fixing screws.
Figure 741.
E
F
F
G
E Case fixing screws (x22)
F Rear case
G Front case
9. 27 - Driveline
06 - Semi-Automatic Gearbox
90 - Front Case
27 - 223 9823/1700-1 27 - 223
2. Use lifting equipment to carefully lift off the rear
case.
3. Remove the shaft bearing outer cups. The cups
will be left on the bearings, or inside the front
case.
Figure 742.
H
H
H
J
J
H
H
H Bearing outer cups
J O-ring seals
4. Keep the cups with their associated bearings.
5. Remove and discard the O-ring seals from the
front case.
After removal
Remove the oil transfer pipe. Refer to (PIL 27-06-86).
Remove the clutch assemblies - refer to the following
procedures:
• Mainshaft - (including layshaft clutch assembly,
2WD / 4WD clutch assembly, reverse clutch
assembly, mainshaft clutch assembly and
forward/input clutch assembly) - refer to (PIL
27-06-54).
For detailed clutch disassemble and assemble
procedures refer to the following procedures:
• Reverse clutch - refer to (PIL 27-06-06)
• 2WD / 4WD clutch - refer to (PIL 27-06-07)
• Layshaft clutch - refer to (PIL 27-06-08)
• Mainshaft clutch - refer to (PIL 27-06-09)
• Forward / input clutch - refer to (PIL 27-06-11)
Before installation
• If you remove the output shaft and bearing then
install them. Refer to (PIL 27-06-58).
• Make sure the clutch assemblies are correctly
assembled and are free from defects. Refer to
(PIL 27-06).
• Replace the clutch shaft piston ring seals with
new ones. Make sure that the piston ring seals
are correctly installed in the shaft grooves.
Refer to (PIL 27-06).
Use lifting equipment to locate the gearbox in a work
cradle as shown. Do not try to assemble the gearbox
further unless it is safely located in a work cradle.
Figure 743.
A
A Cradle
Clean and check the condition of all components
before you install them.
Install the oil transfer pipe. Refer to (PIL 27-06-86).
Install the clutch shaft assemblies. Refer to (PIL
27-06).
Install the front and rear case
1. Install new O-ring seals in the front case.
10. 27 - Driveline
06 - Semi-Automatic Gearbox
90 - Front Case
27 - 224 9823/1700-1 27 - 224
Figure 744.
J
J
X
Y
J O-ring seals
X Friction counter plates
Y JCB Multigasket
2. Apply a continuous bead of JCB Multigasket to
the front case mating face.
Consumable: JCB Multi-Gasket
3. Use two small rods or screwdrivers to align all the
friction counter plates in the main shaft clutch.
4. Use suitable lifting equipment to carefully lower
the rear case and to align the output gear splines
with the main shaft clutch friction plates.
Figure 745.
E
F
F
G
E Case fixing screws (x22)
F Rear case
G Front case
5. If necessary rotate the output shaft a small
amount to align the splines.
6. Apply sealant to the threads of the case fixing
bolts and install them.
7. Tighten the bolts to the correct torque value.
After installation
Install the external oil feed pipe.
Table 291. Torque Values
Item Description Nm
E Case fixing screws 56
11. 27 - Driveline
06 - Semi-Automatic Gearbox
95 - Coupling Yoke 4WD
27 - 228 9823/1700-1 27 - 228
Remove and Install
Special Tools
Description Part No. Qty.
Drive Coupling
Spanner
892/00812 1
Remove
1. Bend back the stake nut locking ring.
2. Clean the area around the yoke. Do not allow
particles of grit to fall into the gearbox.
3. Use service tool 892/00812 to hold the yoke and
at the same time undo the nut. The nut is very
tight, the help of an assistant will be required.
Discard the nut.
Special Tool: Drive Coupling Spanner (Qty.: 1)
4. Remove the yoke and the washer.
5. If necessary remove the oil seal. Do not damage
the seal housing.
Figure 746.
A Yoke
B Stake nut
C Oil seal
D Oil seal interface
E Washer
F Locking ring
Install
1. Make sure that the oil seal interface on the yoke
is clean and free from wear or damage.
2. If necessary install a new oil seal. Locate the seal
in the position shown, the seal does not locate to
the back of the housing.
3. Lubricate the lips of the oil seal.
4. Install the yoke.
5. Install the stepped washer the correct way
around with the plan face facing the stake nut as
shown.
12. 27 - Driveline
06 - Semi-Automatic Gearbox
95 - Coupling Yoke 4WD
27 - 229 9823/1700-1 27 - 229
6. Install a NEW stake nut. Tighten to the correct
torque value.
7. Stake the nut to the shaft using a square ended
staking tool, as shown.
Table 292. Torque Values
Item Nm
B 400
13. 27 - Driveline
12 - Transfer Gearbox
00 - General
27 - 232 9823/1700-1 27 - 232
Component Identification
Unit Identification
The gearbox serial number is stamped on the unit
identification plate as shown. When you make an
order for parts replacement, always give the details
mentioned on the unit identification plate. In the case
of gear replacements, always check the part number
stamped on the gear, and the number of teeth.
14. 27 - Driveline
12 - Transfer Gearbox
00 - General
27 - 233 9823/1700-1 27 - 233
Main Component Identification
Figure 747. Component Identification (For: Bevel Gearbox)
R
A
F
N
D
K
H
E
C
L
T
U
Z
AA
AC
AB
AE
AD
AF
V
S
W
J
G
M
Q
R
Q
P
B
Y
X
15. 27 - Driveline
12 - Transfer Gearbox
00 - General
27 - 234 9823/1700-1 27 - 234
Table 293.
Item Description
A Gearbox case
B Bolt 1
C Pinion gear case
D Extraction holes
E Shim set 1
F Nut 1
G Spacer 1
H O-ring 1
J Pinion gear
K Bearing 1
L Bearing 2
M Spacer 2
N Triple lip seal 1
P O-ring 2
Q Mounting bushes
R Housing bosses
S Bolt 2
T Bevel gear case
U Extraction holes
V Shim set 2
W Nut 2
X Washer
Y Drive flange
Z O-ring 3
AA Bevel gear
AB Bearing 3
AC Bearing 4
AD Spacer 3
AE Triple lip seal 2
AF O- ring 4
16. 27 - Driveline
12 - Transfer Gearbox
00 - General
27 - 235 9823/1700-1 27 - 235
Clean
Consumables
Description Part No. Size
Cleaner/Degreaser
- General purpose
solvent based parts
cleaner
4104/1557 0.4 L
Surface Cleaning Fluid 4103/1204 1 L
1. Carefully remove all traces of the gasket
or gasket compound from the dropbox case
mating faces. Note: When removing the gasket
compound use a gasket removal product such
as Loctite Chisel. Take care not to damage the
mating faces.
2. Clean the faces with a fine carborundum paper.
Use a solvent cleaner and a clean cloth to finally
remove all traces of oil or debris.
Consumable: Surface Cleaning Fluid
3. Clean the inside of the dropbox case using a
suitable degreasing agent.
Consumable: Cleaner/Degreaser - General
purpose solvent based parts cleaner
Check (Condition)
Consumables
Description Part No. Size
4101/0250 0.01 LJCB Threadlocker
and Sealer (Medium
Strength)
4101/0251 0.05 L
Inspection
Before you assemble the gearbox, do a full
inspection of all the components. It may be easy to
find out a component failure but the cause behind
the failure may not be as easy to find out. It is also
possible that a failed component may have caused
damage to other areas of the gearbox.
1. General inspection.
1.1. Carefully inspect all the gears, bearings and
shafts for any signs of excessive wear or
damage. If you find any damage during the
inspection, components must be replaced.
1.2. Make sure that all oil way cross drillings
are clear and free from contamination and
foreign particles. Blocked oil ways are
a common cause of bearing failure. If
necessary use an air line to blow through
the oil ways.
2. Case inspection
2.1. If the gearbox case is to be replaced, then
make sure that all the necessary blanking
plugs and the adaptors are installed.
2.2. Check the original case and locate all the
locations of the blanking plugs and adaptors
on the case.
2.3. Move the plugs and adaptors to the new
cases. Apply sealant to the threads.
Consumable: JCB Threadlocker and Sealer
(Medium Strength)
2.4. New plugs may be supplied with a sealant
patch, in which case sealant is not
necessary.
17. 27 - Driveline
12 - Transfer Gearbox
00 - General
27 - 236 9823/1700-1 27 - 236
Calibrate
Figure 748.
R
A
F
N
D
K
H
E
C
L
T
U
Z
AA
AC
AB
AE
AD
AF
V
S
W
J
G
M
Q
R
Q
P
B
Y
X
A Gearbox housing B Bolt 1
18. 27 - Driveline
12 - Transfer Gearbox
00 - General
27 - 237 9823/1700-1 27 - 237
C Pinion gear housing D Extraction holes
E Shim set 1 F Nut 1
G Spacer 1 H O-ring 1
J Pinion gear K Bearing 1
L Bearing 2 M Spacer 2
N Triple lip seal 1 P O-ring 2
Q Mounting bushes R Housing bosses
S Bolt 2 T Bevel gear housing
U Extraction holes V Shim set 2
W Nut 2 X Washer
Y Drive flange Z O-ring 3
AA Bevel gear AB Bearing 3
AC Bearing 4 AD Spacer 3
AE Triple lip seal 2 AF O-ring 4
End Float Measurement
The end float measurement procedure given below
is applicable for both the pinion drive gear and the
bevel gear.
1. Install the bearings into the pinion gear housing.
1.1. Note: The taper roller bearings 1 and 2 must
be preloaded 0.01 to 0.06 mm to give a
rolling torque of 0.5 to 1.5 Nm. The correct
pre-load is achieved by selecting a spacer
of the correct thickness.
2. Select the largest spacer and assemble with the
bearings in a vice. Use a suitable socket as a
clamping spacer.
Figure 749.
AQ M,AD
M Spacer 2
AD Spacer 3
AQ Socket
3. Tighten the vice and measure the end float on the
housing. To select the correct size spacer Refer
to Table 294. for the calculation.
4. Select the nearest size spacer and assemble
again in a vice.
5. Carefully tighten the vice and make sure that the
pinion gear housing is free to rotate.
6. If the pinion gear housing becomes difficult to
turn by hand, then stop tightening the vice and
install the next largest spacer.
7. The rolling torque can be measured as a rolling
force. Use a spring balance and a cord wrapped
around the pinion gear housing.
Figure 750.
AR
AR 75 mm
8. Pull the spring balance until the pinion gear
housing stops to rotate and then record the
reading.
Weight/Force: 6.9 –19.6 N
9. If the rolling force is too low, assemble again
using the next smallest size spacer.
10. When the correct spacer has been selected,
remove the assembly from the vice and measure
the dimension shown.
19. 27 - Driveline
12 - Transfer Gearbox
00 - General
27 - 238 9823/1700-1 27 - 238
Figure 751.
X
Table 294. Spacer size calculation
Largest spacer 8
End float (example) 0.42
7.58
Pre-load required 0.04
Spacer required 7.54
Backlash Adjustment
Figure 752.
1. Carefully install the gear assemblies into their
correct positions with the shim sets.
1.1. Note: Do not install the O-rings 2 and 4 at
this stage. Make sure that the shims are
correctly aligned with the non-symmetrical
bolt holes.
2. Turn the gear shafts slightly to make sure that the
gears mesh with each other.
3. Attach each drive gear in position with three
bolts.
4. Hold the pinion drive gear stationary and do a
backlash check at the bevel gear drive flange
(use the bolt and lock nut as a reference point).
Refer to Figure 752.
5. Take measurements at four positions and
calculate the average. The average should be
between the specified values.
Length/Dimension/Distance: 0.13 –0.2 mm
6. Adjust the shim sets equally from each drive gear
to calculate the correct backlash.
Gear Meshing Check
1. Apply engineers marking compound on the teeth
of the gears.
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21. 27 - Driveline
12 - Transfer Gearbox
00 - General
27 - 239 9823/1700-1 27 - 239
2. With the gearbox under load, rotate the gears in
both directions.
2.1. Note: It is recommended that the gearbox is
secured to the engine to provide a load.
3. When the pinion is too deeply (Refer to Figure
753. ) in mesh with the bevel gear do the
following:
Figure 753.
J
AA
3.1. Increase the shim thickness between the
pinion drive assembly and the main case.
3.2. Decrease the shim thickness between the
bevel gear assembly and the main case
equally to maintain backlash.
4. When the pinion is too far (Refer to Figure 754. )
out of mesh with the bevel gear do the following:
Figure 754.
AA
J
4.1. Decrease the shim thickness between the
pinion drive assembly and the main case.
4.2. Increase the shim thickness between the
bevel gear assembly and the main case
equally to maintain backlash.
5. When the correct gear meshing is achieved,
calculate the backlash check.
Shim Selection Methods
Three methods of shim selection are used which
depends on the parts replaced during assembly:
• Method A: Assembly using all the original
components.
• Method B: Assembly using complete new gear/
bearing assemblies or gearbox case.
• Method C: Comparing relevant sizes of old and
replacement components and then adjusting
the shim pack accordingly. This method must
be used when you replace the taper roller
bearings. It can also be of use if some deviation
markings are illegible.
Method A
1. As the original gears and bearings are being
installed use the shims that were removed during
disassembly in their original positions.
2. Set the backlash.
22. 27 - Driveline
12 - Transfer Gearbox
00 - General
27 - 240 9823/1700-1 27 - 240
Method B
Figure 755.
AP
AM
AK
V
AN
AJ
AG
E
AH AL
E Shim set 1 V Shim set 2
AG Pinion assembly deviation AH Pinion gear deviation
AJ Pinion housing deviation AK Bevel assembly deviation
AL Bevel gear deviation AM Bevel housing deviation
AN When installing replacement pinion drive gear
assemblies, the sum of AG and AH is marked
at AN.
AP When installing replacement bevel drive gear
assemblies, the sum of AK and AL is marked
at AP.
When you assemble the new gear/bearing
assemblies it is possible to arrive at a nominal shim
stack thicknesses by calculation.
Due to component tolerancing some deviation is
built up from base dimensions. These deviations
are marked on the relevant components during
manufacture. Typical locations of deviation markings
are shown. Refer to Figure 755.
If some of the markings are not visible then it will
not be possible to calculate shim thicknesses. In this
event start by installing 0.5 mm nominal shims to
each gear assembly, then set the backlash.
Calculate the shim stack thickness. Refer to Table
295. and Refer to Table 296.. When you note down
the pinion gear housing and bevel gear housing
deviations a positive value becomes a negative value
and a negative value becomes a positive value, e.g.
-19 becomes +19 in the pinion gear calculation. Refer
to Table 295.
Table 295. Pinion Drive Gear Assembly
Item Description Devia-
tion/Thick-
ness
AG Pinion assembly deviation 0
AH Pinion gear deviation +18
AN
(1)
=18
AJ Pinion housing deviation +19
Total =37
Constant +40
Shim stack thickness 0.77
(1) When installing replacement pinion drive gear
assemblies, the sum of AG and AH is marked at AN.
Table 296. Bevel Gear Assembly
Item Description Devia-
tion/Thick-
ness
AK Pinion assembly deviation 17
AL Pinion gear deviation +60
AP
(1)
=77
23. 27 - Driveline
12 - Transfer Gearbox
00 - General
27 - 241 9823/1700-1 27 - 241
Item Description Devia-
tion/Thick-
ness
AM Pinion housing deviation +27
Total =104
Constant +20
Shim stack thickness 1.24
(1) When installing replacement pinion drive gear
assemblies, the sum of AK and AL is marked at AP.
Select shims to make up the nearest thickness for
each gear assembly.
Important: In all cases use the calculations as a
starting point. Verify with the backlash and gear tooth
mark checks.
Method C
1. When the taper roller bearings are replaced:
1.1. Measure and record the thickness of the
existing shim stack.
1.2. Compare the old and new dimension
measured during assembly. Refer to Table
297.
Figure 756.
X
1.3. Subtract the value derived in step 1.2 from
the relevant shim stack.
Length/Dimension/Distance: 0.33 mm
Table 297.
Old = 40.65
New = 40.32
Result = 0.33
1. When the pinion and bevel gears are replaced:
1.1. Measure and record the thickness of the
existing shim stack.
1.2. Compare the old and new gear deviations.
Refer to Table 298.
1.3. Subtract the value derived in step 1.2 from
the relevant shim stack.
Length/Dimension/Distance: 0.1 mm
Table 298.
AH Old (Pinion gear) = 30
AH New (Pinion gear) = 40
Result = + 0.1
1. When the gearbox case is replaced:
1.1. Measure and record the thickness of the
existing shim stack.
1.2. Compare the old and new housing
deviations. Refer to Table 299.
1.3. When you record the housing deviation
a positive figure becomes a negative
figure and a negative value becomes a
positive value, e.g. -19 becomes +19 in a
calculation. Refer to Table 299.
1.4. Subtract the value derived in step 1.2 from
the relevant shim stack.
Length/Dimension/Distance: 0.27 mm
Figure 757.
-8
-27
+ 19
0