Tile: Shop manual KOMATSU FB15-12
Language: EngLish
Size: 93 MB
Format: PDF
Link die: Mod public link

=> Link mới: http://data.oto-hui.com/nbpk1zrh4lv3.html

Đây là tài liệu sửa chữa của các xe nâng kiểu FD60Z8, FD70Z8, FD80Z8, FD90Z8, FD100Z8 của hãng xe nâng TCM Nhật Bản.

4. BRAKE SYSTEM
The brake valve is operated under the valve open or c10sed state. Their operating principles are as
follows:
(1) Operation when the valve opens
① When the brake pedal is pressed，th e input piston⑪ moves to the left，a nd the spring ⑨ presses the
valve spool ③ and the reaction piston⑥ to the left against the return spring ⑦.
② When the valve spool is moved to the left，囚isc10sed and the control hydraulic chamber is shut off
from the reservoir port. After that，固opensso that the controlled oil pressure chamber leads to the
pump port.
③ When the valve spool ⑧ is further moved to the left from the position shown in step②，固IS
throttled to increase the oil pressure at the pump port，so that the oil pressure in the controlled oil
chamber and the wheel cylinder increases. The oil pressure in the controlled oil pressure chamber
presses the reaction piston to the right，pr oducing pedal pressing force.
A nut comes up against the brake valve body to prevent the oil pressure in the controlled oil pressure
chamber from exceeding the maximum adjustment oil pressure when the input piston is operated with
the maximum pressing force.
When the pedal is released，th e valve spool returns to the original position by the counter force of the
reaction piston and the return spring.
(2) Operation when the valve is closed
When the power steering wheel is operated without applying the power brake，t he oil pressure at the
pump port increases，bu t the oil pressure in the controlled oil pressure chamber does not increase due to固
being c1osed. Therefore，e ven if the steering wheel is operated without pressing the brake pedal，th e brake
won't be applied. When the brake pedal is depressed in this state，囚isc10sed and国opehsby the valve
spool movement，a nd the oil flows from the pump port into the braking oil pressure chamber to increase
the oil pressure in the wheel cylinder.
(3) Accumulator operation
When the pump is not operating (i.e. the engine is shut of f)， the brake valve operates in the same
manner as above，ex cept the following.
① The oil pressu回inthe wheel cylinder does not increase since the oil pressure is not produced at the
pump port under the condition described in step② of (1)
② When the pedal is further pressed in this state shown in step①， the valve spool，th e reaction piston
and the valve rod move to the left as au nit，a nd the valve rod presses and opens the ball. The
controlled oil pressure chamber opens to the accumulator port so that the oil pressure at the
accumulator port operates the wheel cylinder.
③ When the pedal is released，th e valve spool，re action piston and the valve rod move to the right at the
same time，an d the ball is seated to the valve seat by spring force.
④ When the ball come in c10se contact with the valve seat，th e valve rod stopsほthぽposition.When
the reaction piston moves further，閏and回openin this order. When the回opens，the oil in the
wheel cylinder returns to the reservoir through the controlled oil pressure chamber.

(8) Carefully remove the ball nut assembly from the
gear box. Keep the ball nut horizontal at all
times. Failure to do so will damage the ball
scoopmg紅白， resulting in the malfunction of the
ball nut assembly.
5.2.2 INSPECTION
5. STEERING SYSTEM
Fig.5.18
Clean all the disassembled metal parts in c1eaning oil and prepare new "O"-rings and oil seals. After
c1eaning，in spect all parts for scratches or scores，w ear or cracks. Put them in ap lace free from dust and
dirt until reinstallation.
(1) Replace the "O"-rings and oil seals with new ones. Check the side cover bushings for damage or
wear，re placing any defective ones.
(2) Operate the ball nut assembly to see if it is operating normally. If not，c1 ean it，sl owly operating in
c1eaning oil. Replace the ball nut assembly when the threaded grooves show sign of flaking，de nt，or
undue wear.
(3) Inspect the sector shaft for evidence of excessive scores on the gear teeth or undue wear on the shaft.
Replace the sector shaft if defective.
(4) Inspect the radial bearing and side cover bushing in the gear box assembly to see if they are
excessively WOfll. Replace if necess訂y.
(5) Inspect the radial bearing inside the top cover for defect. Replace if necessary.
(6) Inspecting the control valve
① Inspect the valve housing inner surface，es pecially the orifice areas for sign of battering or damage. If
unsatisfactory，re place the control valve assembly.
② Inspect the spool diameter and orifice areas for sign of battering and damage. If unsatisfactory，
replace the spool.
③ Inspect the spring for cracks or breakage，re placing the spring if defective.
④ Check whether the reaction piston is sliding smoothly inside the valve housing. If unsatisfactory，
replace the valve assembly.

Tile: Service manual của xe nâng kiểu FD60-100Z8 của hãng TCM Nhật Bản
Language: Multilingual
Size: 28.1 MB
Format: PDF

Đây là tài liệu sửa chữa một số dòng xe nâng của hãng TCM Nhật Bản:
No. SEF-0F7BE
FORKLIFT TRUCK
TCM CORPORATION
FHG15T3
FHG18T3
FG20T3
FHG20T3
FG25T3
FHG25T3
FG30T3
FHG30T3
FG35T3S
FHD15T3
FHD18T3
FD20T3
FHD20T3A
FD25T3
FHD25T3A
FD30T3
FHD30T3A
FD35T3S
SERVICE MANUAL
SERVICE MANUAL FG20T3 – FG30T3, FHG15T3 – FHG30T3, FG35T3S
FD20T3 – FD30T3, FHD15T3, FHD20T3A – FHD30T3A, FD35T3S No. SEF-0F7BE

- 1 -
1. ENGINE
1. ENGINE
Gasoline and LPG engine
Truck Model
Item
Name K21 K25
Type 4-cycle, water-cooled, in-line, overhead valve type gasoline engine
No. of cylinders – Bore x stroke 4 – 89 x 83.0 4 – 89 x 100
mm [in.] 4 – [3.50 x 3.27] 4 – [3.50 x 3.94]
Total displacement cc [in.3] 2065 [126] 2488 [151.8]
Compression ratio
GAS: 8.7
LPG (Exclusive): 9.3 9.2
Dual fuel: 8.7
Performance
Rated speed rpm 2700
Rated output kW {PS} [HP]
GAS (Exclusive and Dual): 38.7 {52.6} [51.9] 44.7 {60.8} [59.9]
LPG (Exclusive): 40.0 {54.3} [53.7] 44.6 {60.7} [59.8]
LPG (Dual): 39.8 {54.1} [53.4] 44.4 {60.4} [59.4]
Max. torque
N-m {kgf-m} [lbs-ft]/rpm
GAS (Exclusive and Dual): 148 {15.1} [109.2]/2000 174 {17.7} [128.4]/1600
LPG (Exclusive): 151 {15.4} [111.4]/2000 185 {18.4} [136.5]/1600
LPG (Dual): 150 {15.3} [110.6]/2000 183 {18.7} [135.0]/1600
Full-load rated fuel consumption
g/kW-h {g/PS-h}/rpm
GAS (Exclusive and Dual): 303 {223}/1600 302 {222}/1600
LPG (Exclusive): 230 {169}/2000 215 {158}/1600
LPG (Dual): 235 {173}/2000 223 {164}/1600
No-load minimum speed rpm 700 rpm (off the truck)
Weight kg [lbs]
GAS: 151 [333] 152 [335]
LPG (Exclusive): 151 [333] 152 [335]
Dual fuel: 152 [335] 153 [337]
Dimensions mm [in.] 719.4 x 568 x 726 [28.3 x 22.4 x 28.6]
Ignition order 1-3-4-2
Rotational direction Clockwise when viewed from the fan
5. STEERING SYSTEM
- 80 -
The returning oil from the power cylinder flows, passing through the cylinder port R, groove in the
valve housing, oil hole in the sleeve, groove in the spool, oil hole in the sleeve, and groove in
the valve housing, back to the oil tank.
(c) When steering wheel is turned clockwise
As the steering wheel is turned clockwise, the
grooves in the spool shift to the right in relation to the
oil holes and grooves in the sleeve so that oil holes
in the spool get out of line with holes in the sleeve.
The oil that has flowed into groove thus far begins
to flow into oil hole in the sleeve and then flows
through grooves and in the spool, oil hole in
the sleeve, and oil passage in the valve housing to
the hydraulic motor. The hydraulic motor thus rotates in
the clockwise direction and the oil discharged from the
hydraulic motor flows through oil hole in the sleeve,
groove in the spool, and oil hole in the sleeve to
the cylinder port R in the housing and thus actuates the
power cylinder.
The returning oil from the power cylinder flows,
passing through the cylinder port L, groove in the
housing, oil hole in the sleeve, groove in the spool,
oil hole in the sleeve and groove in the housing
back to the oil tank.
(2) Relationship between the rotating speed and operating force of the steering wheel
The force required to operate the orbitrol is basically a valve operating force (the force required to
compress the centering spring: 2.9 N-m {0.3 kgf-m} [2.14 lbf-ft]). That is, there is no mechanical linkage
between the steering wheel and the tires, and thus the operating force of the steering wheel remains
constant regardless of the rotating speed of the steering wheel. The discharge of oil from the orbitrol
rotor to the steering cylinder is 96 cc/revolution.
(3) Neutral feedback of orbitrol
The neutral feedback function of the orbitrol is performed by the valve switching over the oil passages
according to the reaction force of the centering spring. (If the steering wheel is turned and then released
with the engine turned off, it will automatically return to the straight-ahead position.) Should the neutral
feedback not function properly, the steering wheel might turn by itself when the operator does not turn it.

Tile: Service manual của một số dòng xe nâng của hãng TCM Nhật Bản
Language: English
Size: 10.8 MB
Format: PDF

Đây là tài liệu sửa chữa xe nâng của hãng TCM Nhật Bản. Dùng cho các kiểu xe như FB10,30-7; FB25-7LB; FB25-7V; FB30-7V; FB35-7S. Dưới đây là trích dẫn về mã lỗi của xe cũng như phương pháp kiểm tra:
- 37 -
3. CONTROL SYSTEM
3.2 MAINTENANCE
3.2.1 TROUBLESHOOTING GUIDE
The CPU board of the controller has an LED (green) which shows the content of errors occurring in
the truck, using their corresponding code numbers that are distinguished by different blinking intervals.
Each error code is displayed by a 2-digit decimal number, with both the second and first digits
blinking at an interval of 0.5 seconds while a pause of 1 second OFF is inserted between the second digit
and the first digit. Once an error code is displayed, an OFF period of 4 seconds is inserted before the
same error code is displayed again. Thereafter, this process is repeated.
If multiple errors occur, the code of the last error detected by the controller is only displayed.
Example: Error code: 23 (Traveling neutral interlock detected)
For errors whose error code is not displayed, refer to the following chart:
The same process
is repeated.
Error code number: 23
LED blinks twice LED blinks three times
LED comes on
LED goes out
No.
1
2
3
4
Problem
Contactor won’t close
although key switch can
be turned on.
Truck won’t move
or operate (traveling,
load handling and EPS
systems)
CPU board LED of
controller won’t work.
Truck won’t travel
despite FR switch (F or
R) or accelerator pedal
operation.
Truck comes to stop
during traveling.
Hard steering wheel
Error
Harness disconnected
between power supply
board and CPU board
DSW1 improperly set
Reverse connection of
A and B connectors of
speed sensor.
U, V, or W phase wire
broken (missing)
Power module open
Accelerator pedal or
its signal circuit wire
broken
Battery overvoltage
detected
PS motor short-circuited
Remedy
Proceed with remedy in numerical order of encircled numbers.
Repair or change harness between CN1R (power
supply board) and CN9 (CPU board).
Set all DSW1 (2-bit SW) on CPU board to OFF.
Check A and B connectors for connection.
Check DU, DV, and DW cables for breakage, and
repair if needed.
Check power modules TMDU, TMDV, and TMDW
and repair if needed.
① Check harnesses between CN2-8,9,20 (CPU
board) and traveling accelerator pedal, and repair
or change if needed.
② Repair or change accelerator pedal unit.
① Check battery connectors for contact.
② Check harness between CN4-2 (CPU board) and
P3 terminal, and repair or change if needed.
③ Check harness between CN4-10 (CPU board)
and P13 terminal.
Check PS motor and wiring for short, and change if
needed.
Reset
Restore to
normal.
Restore to
normal.
Restore to
normal.
Restore to
normal.
Restore to
normal.
Restore to
normal.
Restore to
normal.
Remarks
Use caution when
replacing motor.
Protection is provided if
battery connectors cause
improper contact or get
disconnected during
regeneration.
1. BATTERY AND CHARGER
- 7 -
(3) Operation panel
The operation panel is located on the left side of the cabinet and equipped with a charger control
switches, lamps and service power outlet.
(4) VTM unit
The VTM unit is installed inside the right side frame. It sets the charging time for the battery
assembly by the signal from the operation panel.
■ Major features of VTM unit
① Optimal charge according to battery’s state of charge
Conventionally, overcharge might occur when not so an exhausted battery is charged. On this
charger, the microprocessor judges the battery’s state of charge and changes the normal timer setting
within a specified range for optimal charge.
This setting voltage is compensated properly to provide optimal charge even if there are temperature
changes.
② Super equalizing charge
The microprocessor counts the charging time and automatically provides equalizing charge when a
specified time is reached. The time setting for super equalizing charge is preset properly according
to the ambient temperature after temperature compensation. This function saves the trouble of the
operator’s bothering to press the equalizing charge button.
③ In case of power failure while charging
Unless power failure continues longer than 120 hours, battery charging is normally completed.
■ VTM unit
The VTM is mainly composed of its timer function. The microprocessor of the VTM unit determines
and sets an optimal duration of charging after checking the state of the battery.
Fig. 1.7 Operation Panel

3. CONTROL SYSTEM
- 36 -
○ The key switch is turned to ON when the operator is not in the operator’s seat.
■ The interlock system is activated if any of the following conditions occurs.
Operation of the truck
Traction Pump Power
steering
Blinks (Stays on if parking brake lever is pulled.)
Blinks is displayed
An alarm buzzer will sound for
one half second if the parking
brake lever is in released position.
Blinks (Stays on if parking brake lever is
pulled. No buzzer sounds.)
Within
3 seconds
How to release:
The interlock will be released by sitting down again within 6 seconds
after the truck comes to a stop (or within 9 seconds after leaving the
seat).
If more than 6 seconds (after the truck comes to a stop) or 9 seconds
(after leaving the seat) passes, you must sit down and place the shift
lever and the load handling levers into neutral to release the interlock.
3 seconds
passed
○ The operator leaves the operator’s seat when the key switch is in the
ON position.
× × ×
○ ○ ○
× × ×
How to release:
Turn the key switch to OFF, sit down and turn the key switch to ON.
“ ” will be displayed and the “ N ” mark will blink if the
operator performs any operation other than turning the steering wheel
or shifting the lift lever in the lowering phase (when the shift lever is
not in neutral.)
3.1.4 BACK-DOWN ALARM SYSTEM
Alarm
• If the accelerator pedal is released while the truck is going up a hill in forward, the truck might stop
and then back down the slope. In this case, the anti-roll-off regeneration function will be activated to
cause the backup buzzer to sound, even if the shift lever is in the forward position.
How to release the alarm
• Press the accelerator pedal to release the anti-roll-off regeneration function and the buzzer will stop.
(CAUTION)
• Do not place the shift lever in neutral on a slope — the truck might back down the slope rapidly.

Tile: Tài liệu sửa chữa của xe nâng TCM FB10,30-7
Language: English
Size: 10.3 MB
Format: PDF