GROUP 2 REMOVAL AND INSTALLATION OF UNIT
Remove and install following units as explained in the flow chart.
1. MAST
1) REMOVAL
(1) Forks
Backrest
① Lower the fork carriage until the forks are
approximately 25mm(1in) from the floor.
② Release fork anchor pins and slide one Pin
fork at a time toward the center of the
Knob
carriage where a notch has been cut in Spring
the bottom plate for easy fork removal.
③ Remove only one fork at a time. Carriage
※ On larger forks it may be necessary to Fork
use a block of wood. Center notch 35DS7RE04
(2) Backrest(If necessary)
① Remove bolts securing backrest to fork
carriage, lift backrest straight up and
remove it from carriage. Backrest
Carriage Bolt
35DS7RE05
(3) Carriage
① With the mast vertical, raise the carriage
high enough to place blocks under the
load forks. This is done to create slack in
the load chains when the carriage is
lowered. Lower the carriage all the way
down to the floor. Make sure the carriage
is level, this will prevent any binding when
the mast is raised. 35L7RE53
2-2
② While supporting lift chains, remove the
Chain
split pin and nuts from the anchor bolt.
Outer
mast
Anchor
bolt
Nut Split pin
35DS7RE06
③ Pull the chains out of the sheaves and
drape them over the front of the carriage.
Mast
Carriage
Lift chain
Block
35DS7RE07
④ Slowly raise inner mast upright until mast
clears top of fork carriage. Move carriage
to work area and lower the mast.
Inner mast
Make sure that carriage remains on
floor and does not bind while mast is
being raised.
※ Inspect all parts for wear or damage.
Replace all worn or damaged parts.
Carriage
Lift chain 35DS7RE08
2-3
(4) Piping
① Remove the return hoses and clamps
attached to the cylinder.
② Remove the return hose from the tee. Return
③ Remove hose assembly, tee and down hose
safety valve(1).
※ Put blind plugs in the piping immediately Hose
clamp
after removing hoses.
This prevents the hydraulic oil from Lift
flowing out and also prevents dust and cylinder
dirt from getting in.
35DS7RE09
(5) Lift cylinder
Hex bolt
① Loosen and remove hexagon bolts and Washer
washers securing lift cylinders to inner
mast.
② Bind the lift cylinder with overhead hoist
rope and pull up so that the rope has no Clamp
Inner
slack or binding. mast
Make sure the lift cylinder be tightened
firmly for safety.
③ Loosen and remove hexagon bolts, nuts
Lift Outer
and clamp securing lift cylinders to outer cylinder mast
mast.
④ Using an overhead hoist, slowly raise the
inner mast high enough to clear lift
cylinder.
⑤ Using an overhead hoist, draw out lift Hex bolt
cylinder carefully and put down on the Clamp
work floor.
35DS7RE10
2-4
(6) Inner mast
① Using an overhead hoist raise the inner
mast straight and carefully draw out of
outer mast section.
Be careful the mast not to swing or fall. Inner
mast
Outer
mast
35DS7RE11
(7) Tilt cylinder pin
(8) Mast mounting pin
① Attach a crane to the stay at the top of the
outer mast, and raise enough to sustain
jacked up machine. Outer mast
※ This operation is carried out under the Tilt cylinder
machine, so use a pit, or if there is no pit,
jack up the machine and loosen with an
impact wrench.
② Loosen the mounting socket bolts and Tilt cylinder pin
remove the mast mounting pins.
Then slowly raise the outer mast.
Socket bolt
Frame
Mast
mounting pin
35DS7RE12
2-5
2) INSTALLATION
After assembling mast components totally without piping connections, install mast assembly to the
equipment.
※ Installation procedure for each of mast component is the reverse of the removal procedure.
(1) Mast mounting pin
① Check the mast mounting pins for wear, then install pins into the mast support bracket.
② Jack up the machine so that the front is raised and then using an overhead hoist assemble outer
mast to frame.
③ Tighten mounting socket bolts to frame.
·Tightening torque : 35.1~47.5kgf·m(254~344lbf·ft)
(2) Tilt cylinder pin
Hold the mast with a crane, operate the tilt control lever and align the holes, then knock the pin.
(3) Lift cylinder installation and adjustment
① Assemble the lift cylinder inside the outer
mast, then tighten the stopper bolt. If the
cylinder assembly has been replaced,
adjust as follows so that the left and right
cylinders are synchronized at the maxi-
mum lifting height.
② Assemble the cylinder rod to the inner
mast, and check the left-to-right play of
the mast at the maximum lifting height.
※ If play is to LEFT, install adjustment shim
to LEFT cylinder.
※ If play is to RIGHT, install adjustment
D503RE03
shim to RIGHT cylinder.
·Shim thickness : 1.0mm(0.04in)
2-6
2. POWER TRAIN ASSEMBLY
1) REMOVAL
D503RE04
(1) Mast
Refer to section on mast(Page 2-2)
2-7
(2) Brake piping
Brake valve
Disconnect the brake piping from the
brake housing of drive axle unit.
Brake pipe
Drive axle
35DS7RE13
(3) Parking brake cable
Disconnect parking brake cable from the
brake housing of drive axle unit. Parking
brake
Parking lever
brake cable
Drive axle
35DS7RE14
(4) Drive axle
※ Before removing the drive axle unit, drain
all of the oil from the axle.
① Loosen hexagonal bolts connecting drive
axle to the transmission.
※ If there is a pit, use the pit for safety.
3 Truck
② Jack up the machine and then put the 2 Block
block under the frame.
③ Prepare the truck under the drive axle 4 Trunnion
unit to support it.
④ Remove trunnion fixing the axle to the
frame and then carefully draw the truck 1 Drive axle & T/M
mounting bolt
out of the vehicle with the drive axle unit.
35DS7RE15
2-8
(5) Inching linkage
Inching pedal
Remove the bolt fixing the linkage
assembly to T/M control valve.
Bolt
T/M control valve 35DS7RE16
(6) Transmission cooling piping
① Disconnect cooling hose and connector Radiator
assy
from the transmission.
Hose
※ Make sure that the coolant be drained
from the hose.
Hose
Transmission assy
35L7RE17
(7) Torque converter
Cover
① Remove the cover on top face of the
torque converter housing then remove Bolt
the 4 mounting bolts installed on the Transmission
engine flywheel. To rotate the flywheel,
remove 1 mounting bolt, then insert a
turning tool in the mounting hole. One
man must turn the engine fan by hand Torque
converter
while the other turns the flywheel.
35L7RE18
2-9
(8) Mounting bolts holding to flywheel
housing
① Remove the transmission assembly from Mounting bolt
the engine flywheel by loosening the
mounting bolts.
35L7RE19
② Using a moving truck slowly pull out
transmission assembly to the front.
Frame
Block
Truck 35DS7RE20
2) INSTALLATION
(1) Installation is the reverse order to removal,
but be careful of the following points.
(2) Tightening torque
·Bolt(1) : 3.5~4.2kgf·m(25.2~30.3lbf·ft) Bolt(1)
·Bolt(2) : 5.5~8.3kgf·m(39.7~60.0lbf·ft)
Bolt(2)
35L7RE21
2-10
3. ENGINE
Lever the torque converter, transmission and front axle inside the frame, then remove the engine
assembly.
1) REMOVAL
D503RE25
(1) Overhead guard
Remove the wiring for rear combination
lamp, working lamp, head lamp and
flasher lamp on the stay of the overhead
guard and then raise it together with the
bonnet.
35L7RE22
2-11
(2) Remove the torque converter housing
cover, mounting bolts installed to flywheel
housing.
For details, see page 2-9. Engine
(3) Engine accessory
Remove all wiring harnesses, cables and
hoses around the engine, dashboard and
frame.
① Wiring harness to alternator and starter.
② Wiring harness for oil pressure and
engine water temperature gauges.
③ Cables for meters, buttons and accelerator
pedal.
④ Hoses to fuel tank and air cleaner.
⑤ Exhaust pipe.
(4) Radiator hose
Open the drain valve of the radiator and
drain the cooling water, then remove the 35L7RE23
radiator hose.
(5) Mounting bolt
Attach a crane to the engine hook and
raise, then remove mounting bolts. Raise
the engine slightly, slide towards the
radiator, then lift up.
※ When sliding the engine, be careful of the
collision engine and radiator.
35L7RE24
2) INSTALLATION
Installation is the reverse order of removal,
but be careful of the following points.
7.5kgf.m(54.2lbf.ft)
(1) Tighten the engine mounting bolts and
nuts.
(2) Tighten the engine mounting bracket bolts.
※ Do not remove the bolts unless necessary.
Loctite is coated over the threads of bolt.
So, once the bolts were removed, coat
them with loctite(#243) when installing. 5.5~8.3kgf.m
※ Before installing the bolts, loctite in the (39.7~60.0lbf.ft)
holes should be removed by a tap. 35L7RE25
2-12
(3) Radiator hoses
·Distance to insert hose : 42mm(1.65in)
Engine
(4) Air cleaner hose
① Insert the air cleaner hose securely and
fit a clamp.
② Distance to insert hose Air cleaner
·Air cleaner hose : 89mm(3.5in) Muffler Tail pipe
·Engine end : 60mm(2.36in)
Loctite #243
Engine
Exhaust pipe
E/G
35L7RE26
2-13
5. STEERING AXLE
1) REMOVAL
Drawbar
Mounting bolt
35L7RE27
(1) Counterweight
Hold the counterweight with hoist bars, and raise it with a crane.
Remove the mounting bolts, raise slightly and move it slowly to rear side.
·Weight of counterweight(standard)
35L-7 1820kg (4010lb)
40L-7 2200kg (4850lb)
45L-7 2550kg (5620lb)
·Tightening torque : 199±29.9 kgf·m (1440±216lbf·ft)
2-14
(2) Rear wheel
Remove mounting bolt and hub nut with
socket wrench and then carefully take out
the tire assembly.
35DS7RE28
(3) Hose
Steering axle
Hose
35DS7RE29
(4) Mounting bolt
Put a block under the steering axle, Steering axle
support on a truck, an raise the frame with
a crane. Remove the mounting bolts
installing to the frame, and pull out to the
rear. Support
There are shims between the support and
steering axle to prevent play.
Mounting bolt
35DS7RE30
2-15
