Takeuchi Hydraulic Excavator TB285 (No.185000001~), TB290 (No.190000001~). Operator's Manual - page 2
Safety
Precautions on maintenance
Periodically replace the safety-critical
Jump starting with booster cables
parts
• When starting the engine using the booster
• To use the machine safely for a longer
cables, be sure to connect the cables in
period, periodically add oil and perform
the proper order described below. Wrongly
inspection and maintenance. To improving
connected cables can result in sparking
the safely, replace the safety-critical parts
and battery explosion.
like hoses and seat belts periodically. Refer
· Do not allow the “machine in trouble” and
to “Safety-critical parts to be replaced
“rescue machine” to touch each other.
periodically” for further details.
· Do not allow the positive (+) and negative
• The “Safety-critical parts to be replaced
(-) clips of the booster cables to touch
periodically” are the parts which
each other or to come in contact with the
deteriorate, wear and fatigue after repeated
machine.
use and whose properties change over
· When connecting, attach the positive
time. While these characters of these parts
booster cable to the positive (+) terminals
could cause serious physical or personal
first. When disconnecting, remove the
damage, judging the remaining life of these
negative cable from the negative (-)
part are difficult from external inspection or
terminal (ground) first.
the feeling when operating.
· Be sure to connect the clips securely.
• Replace the “Safety-critical parts to be
· Connect the last clip of the booster cable
replaced periodically” if any defect is found
to a point as far away from the battery as
from external inspection, even when they
possible.
have not reached the time specified
• Always wear the protective goggle and
interval.
gloves when starting the engine by using
the booster cables.
• Use the booster cables and clips of a size
suited to the capacity of battery. Do not
use damaged or corroded booster cables
and clips.
• Be sure that the battery of the “rescue
machine” has the same capacity as the
battery of the “machine in trouble”.
1-31
Safety
Precautions on maintenance
Have a Takeuchi service agent repair
Disposing of wastes
welding
If welding must be performed, make sure
that it is done by a qualified person in a
properly equipped workplace. To prevent any
part from breaking down or being damaged
due to overcurrent or sparks, observe the
following.
• Disconnect the wiring from the battery
before doing electric welding.
• Do not continuously apply 200 V or more.
• The earth ground must be connected
within one meter from the welding section.
• Always collect oil that is drained from the
Do not connect the earth ground near to
machine in containers. Improperly
an electronically controlled device/
disposed waste oil can cause
instrument or connectors.
environmental harm.
• Make sure that there are no seals or
• Follow appropriate laws and regulations
bearings between the welding section and
when disposing of harmful objects such as
the earth ground.
oil, fuel, coolant, solvent, filters and
• Do not connect the earth ground around
batteries.
the pins for the working equipment or
hydraulic cylinders.
• When welding is to be done on the
Handling of poisonous chemicals
machine body, disconnect the connectors
for the electronically controlled devices
Poisonous chemicals will cause serious injury
before working.
if directly contacted.
Poisonous chemistry used in this machine
includes grease, battery solution, coolant,
Vibrations operators are subject to
paint and adhesive agent.
Handle the poisonous chemicals properly
According to the results of the tests
with care.
conducted to determine the vibrations
transmitted to the operator by the machine,
the upper limbs are subjected to vibrations
lower than 2.5 m/s2 (8.2 ft/s2) while the
seated part of the body is subjected to
vibrations lower than 0.5 m/s2 (1.64 ft/s2).
Checks after maintenance
• Gradually increase the engine speed from a
low idle to maximum speed and check that
there is no oil or water leaking from the
serviced parts.
• Operate each control lever and check that
the machine is operating properly.
1-32
Safety
Safety signs (decals)
Safety signs (decals)
For the safety of the operator and the personnel working around the site, safety signs (decals)
are placed at certain locations on the machine as shown below. Walk around the machine with
this manual, and check the content and location of these safety signs. Review these signs and
the operating instructions in this manual with your machine operators.
• Keep the signs clean and legible. If any of the safety labels is peeling or damaged and
becomes difficult to read, replenish it with a new one. Please include your product serial
number when ordering a new sign from the Takeuchi service agent.
• When a part/unit to which a safety sign is attached is replenished, a new sign must be
attached to the new part/unit.
1-33
Safety
Safety signs (decals)
1-34
Safety
Safety signs (decals)
1-35
Safety
Safety signs (decals)
1-36
Safety
Safety signs (decals)
1-37
1-38
Controls
2-1
Controls
Names of components
Names of components
Upperstructure
Undercarriage
Working equipment
1. Cab
6. Crawler belt
11. Bucket
2. Seat
7. Idler
12. Bucket cylinder
3. Engine hood
8. Track roller
13. Arm
4. Fuel tank
9. Carrier roller
14. Arm cylinder
5. Hydraulic tank
10. Travel motor
15. Boom
16. Boom cylinder
2-Piece boom
17. Boom bracket
18. Swing cylinder
19. Auxiliary hydraulic lines
20. Dozer blade
21. Blade cylinder
22. Second boom
23. Second boom cylinder
2-2
Controls
Names of components
1. Instrument cluster
18. Automatic deceleration switch*
2. Starter switch
19. ECO mode switch*
3. Blade lever
20. Highland mode switch*
4. Throttle controller
21. Auxiliary 1st flow rate select switch
5. Right operating lever*
22. Detent mode switch
6. Horn button
23. Overload warning switch*
7. Deceleration button
24. Beacon lamp switch*
8. Boom swing pedal
25. Engine shutdown switch
9. Trip/Data switch
26. Auxiliary 2nd/4th switch*
10. Travel lever/Pedal
27. Auxiliary 2/4 select button*
11. Travel speed button
28. Third auxiliary hydraulic button*
12. Left operating lever*
29. Third auxiliary hydraulic switch*
13. Auxiliary 1st switch*
30. Cigarette lighter
14. Safety lock lever
31. Radio
15. Light switch
32. AC Control panel*
16. Wiper switch
33. Swing/ Second boom select button*
17. Washer switch
*: Subject to the specifications or optional products selected
2-3
Controls
Covers
Opening
Covers
Starter key
1. Insert the starter key and turn it
counterclockwise to unlock the side cover
The starter key is used to start and stop the
(1).
engine, as well as to lock and unlock the
2. Push in the key hole with your thumb and
following components:
open the side cover (1) all the way.
• Cab door
• Engine hood
• Covers
Side cover
Warning
• Stop the engine and allow the machine
to cool down before performing
maintenance.
• Be sure to secure the side cover with
3. Raise the stopper (2) to secure the cover.
the stopper before working inside. Do
4. Store the tools.
not keep the side cover open on a
windy day or if the machine is parked
Closing
on a slope.
1. Close the side cover (1) and press it down
• When opening and closing the side
until a click is heard.
cover, be careful not to get your hands
or other parts of your body caught by
the cover.
For inspection and maintenance of the
hydraulic oil system, fuel system, coolant
system or window washer, open this cover.
The grease gun and the tools are also stored
in the cover.
2-4
Controls
Covers
Fuel lid
Fuel filler port
Caution
Warning
When opening and closing the fuel lid, be
• Do not smoke and keep away from heat
careful not to get your hands caught by
or flame while filling the fuel tank.
the lid.
• Fill the fuel tank in a well ventilated
place, with the engine turned off.
For adding fuel or checking the level of
• Clean up spilled fuel immediately.
hydraulic oil or coolant, open this cover.
• Do not fill the fuel tank to capacity.
Allow room for oil expansion.
Opening
• Securely tighten the fuel filler cap.
Opening
AM0B0011
1. Insert the starter key and turn it
counterclockwise to unlock the fuel lid (1).
AM1B0041
2. Remove the starter key, push in the key
hole with your thumb and open the fuel lid
1. Open the fuel lid.
(1) all the way until it stops.
2. Turn the fuel cap (1) counterclockwise and
remove it.
Closing
1. Close the fuel lid (1).
Closing
2. Insert the starter key and turn it clockwise
1. Turn the fuel cap (1) it clockwise and close
to lock the fuel lid (1).
it.
2. Close the fuel lid and lock it.
2-5
Controls
Covers
Engine hood
Fuse box cover
For inspection and maintenance of the fuse
Warning
or air conditioner filter, open this cover. The
• Before opening the engine hood, be
port for connecting to a computer is inside
sure to stop the engine. If a hand or tool
the box.
becomes trapped in the rotating or
moving part, serious injury could result.
Opening
• Be sure to secure the side cover with
the stopper before working inside. Do
not keep the side cover open on a
windy day or if the machine is parked
on a slope.
• When opening or closing the engine
hood, be careful not to get your hands
or other parts of your body caught by it.
Opening
1. Remove the wing bolt (1).
2. Tilt the fuse box cover (2) forward.
Closing
1. Close the fuse box cover (2) and secure it
with the wing bolt (1).
1. Insert the starter key and turn it
counterclockwise to unlock the engine
hood (1).
2. Push in the key hole with your thumb and
open the engine hood (1).
Closing
1. Close the engine hood (1) and press down
the edge of it until a click is heard.
2-6
Controls
Cab
2. Open the door fully and press it against
Cab
the cab to secure it in place.
Cab door
Closing
Warning
When getting on or off the cab, first open
the door all the way until it is secured in
the catch and check that it does not
move.
Open the door fully and press it against the
catch at the back of the door to secure it in
place.
The door must be locked when getting on or
off the machine and while in operation.
1. Push the release lever (3) to the lower.
Locking and unlocking
2. Close the released door.
Emergency exit
Front window (excluding machines with a
front guard)
Insert the starter key and turn it.
Opening
1. Pull the knob (1) towards you and open
the door.
If you should become trapped inside the
cab, open the front window to get out.
To open the door from inside the cab,
push the lever (2) to the lower.
2-7
Controls
Cab
Front window
5. Release your thumb from the knobs (2)
and then lift the front window (3) fully and
lock the front window with lock pin (4).
Warning
• Grasp the handles firmly with both
Closing
hands when opening and closing the
Warning
front window. Your head or hands may
get caught if it slips from your hands.
When closing the front window slowly so
• When the front window is opened or
as not to hit your head. Lowering the
closed, it will come close to the head.
window abruptly may result injury or
Be careful that the window does not
damage the front window.
strike the head.
• When you open the front window, be
sure to lock it in place with the lock pins
on the left and right sides. The window
may fall if it is not locked in place.
Opening
1. Grasp the left and right handles (1) and
press the knobs (2) with your thumb to
release the lock.
2. Pull down the front window (3) and while
doing so, slide it to the front and slowly
lower it.
1. Park on a level surface and stop the
engine.
2. Set the safety lock lever to the locked
position.
3. Grasp the left and right handles (1) and
press the knobs (2) with your thumb to
release the lock.
4. Pull the front window (3) toward you and
lift while doing so.
3. Release your thumb from the knobs (2)
and then press the front window toward
front and lock the front window with lock
pin (4).
2-8
Controls
Cab
Lower front window
Side window
Removing
1. Grasp the catch (7), unlock it and open
the side window.
1. Open the front window and stow it in the
2. To close the side window, close it until a
ceiling.
click is heard.
2. Slowly lift the lower front window (4).
Emergency hammer (optional)
3. Hold the window in a vertical position (the
bottom of the window should be in front of
you), place it through the guide (5) on the
An emergency hammer is installed to be
left side of the cab, and then secure it with
used to escape from the cab in an
the support (6).
emergency. When escaping, break the
windows with the hammer.
2-9
Controls
Seat and seat belt
(B) Fore-and-aft adjustment
Seat and seat belt
1. Pull up the lever (2) and slide the seat
Seat
backward or forward to the desired
position for operation of machine.
2. Release the lever (2) at the desired
Warning
position to secure the seat.
• Adjust and secure the seat.
Adjustment range: 15 positions, in 150
• Do not make any adjustments while
mm (5.9 in.)
operating the machine.
(C) Adjusting according to operator’s
weight
1. Turn the handle (3) until the scale indicates
the weight of operator.
(A) Adjusting the backrest angle
Adjustment range: 50 to 130 kg (110 to
287 lbs)
Warning
• Do not set the backrest to its maximum
(D) Adjusting the height of the seat
reclining position and slide the seat
Upward
backwards at the same time. Doing so
1. Lift the seat to first or second position
may damage the rear window or cause
click-stop.
injury.
Adjustment ranges: 2positions, in 60mm
• Remember that the backrest returns to
(2.36 in.)
the forward position abruptly due to the
Downward
spring force.
1. First lift the seat to highest position, then
the seat can be lowered to lowest
1. Sit up and sit back in the chair.
position.
2. Pull up the lever (1), recline the backrest
by using the spring force. Release the
lever (1) at the desired angle to secure the
backrest.
2-10
Controls
Seat and seat belt
(E) Adjusting the headrest (Option)
Seat belt
The headrest (E) can be moved upward or
downward.
Caution
1. Grab the headrest (E) with both hands,
and move upward or downward to the
Be sure to fasten the seat belt securely
desired position.
before starting the engine.
(F) Adjusting the operating lever stand
Fastening the seat belt
1. Adjust the seat to the desired position for
operation, sit up and sit back in the chair.
2. Pull the seat belt to the desired length.
1. Pull up the lever (5) and slide the lever
stand (seat).
2. Release the lever (5) at the desired angle
to secure the lever stand (seat).
3. Make sure that the belt is not twisted and
Adjustment range: 9 positions, in 90 mm
then insert the tongue plate (A) into the
(3.5 in.)
buckle (B) of the seat belt until you hear a
clicking sound as it locks in place.
4. Check if the belt is securely locked by
pulling it, and arrange the belt around your
waist.
Releasing the seat belt
1. Grasp the tongue plate (A) and press the
button (C) on the buckle (B).
The seat belt retracts back into its original
position.
2-11
Controls
Seat and seat belt
Air Suspension Seat
(A) Adjusting the lumber support
1. Turning the knob (1) in the direction of the
arrow causes the lumber of the backrest
Warning
to curve outwards.
• Adjust and secure the seat.
2. Turning the knob (1) further removes the
• Do not make any adjustments while
curve and returns the seat to its original
operating the machine.
position.
(B) Adjusting the backrest angle
Warning
• Do not set the backrest to its maximum
reclining position and slide the seat
backwards at the same time. Doing so
may damage the rear window or cause
injury.
• Remember that the backrest returns to
the forward position abruptly due to the
spring force.
1. Sit up and sit back in the chair.
2. Pull up the lever (2), adjust the backrest
rear angle by using the spring force on the
chair back. Release the lever (2) at the
desired angle to secure the backrest.
(C) Adjusting the absorber
The seat adjustment using the absorber is
applicable for various traveling conditions on
roads or off roads. The cushioning effect can
be individually set for each case.
Turn the lever (3) to the desired position and
release.
Positions between
1: Soft cushioning
and
4: Hard cushioning
2-12
Controls
Seat and seat belt
(D) The fore/aft isolator
(F) Adjusting the seat height
It is activated under certain conditions such
as crashing. Impacts of crash applied in the
IMPORTANT: Be sure to set the absorber
operating direction can be well absorbed by
to the soft position (1) when performing
the operator’s seat. Switching can be done
the height adjustment.
with the lever (4).
IMPORTANT: Do not operate the lever (5)
(compressor) for one minute or more.
Position 1: Fore/aft isolator on
Doing so will cause compressor failure.
Position 2: Fore/aft isolator off
To protect the compressor, wait for at
least three minutes before operating the
(E) Adjusting according to operator’s
lever (5) again.
weight
IMPORTANT: If the height adjustment
function fails, first lower the seat to the
lowest position. Then, adjust the height
again.
The seat height can be steplessly adjusted
using the pneumatic mechanism.
To adjust, push up or push down the lever (5)
all the way up or down. When the seat
reaches the level where it cannot be raised
anymore even the lever (5) is pushed up, that
level is the highest. If this happens, the
IMPORTANT: Before performing the
height is automatically lowered a small
adjustment by weight, stop the machine
distance to maintain the stroke of
and remain seated. Otherwise, the weight
suspension.
cannot be detected, resulting in
Adjustment stroke: 80 mm (3.1 in.)
malfunction.
IMPORTANT: Be sure to set the absorber
(G) Adjusting the seat pan angle
to the soft cushioning position (1) when
performing the adjustment by weight.
The seat should be adjusted according to
the operator’s weight. Briefly pull the actuator
lever (5) of the automatic weight and height
adjuster.
The angle of the seat pan can be individually
adjusted.
To adjust, lift the left side handle (6). Use the
pressure applied to the seat to set the seat
pan to the desired angle.
2-13
Controls
Seat and seat belt
(H) Adjusting the seat depth
(K) Adjusting the operating lever stand
The depth of the seat pan can be individually
1. Pull up the lever (9) and slide the lever
adjusted.
stand (seat).
To adjust, lift the right side handle (7). Move
2. Release the lever (9) at the optimum
the seat cushion forward or backward until
position to secure the lever stand (seat).
the desired seat depth is obtained.
Adjustment range: 9 positions, in 90 mm
(3.5 in.)
(J) Adjusting fore-and-aft
1. Pull up the lever (8) and slide the seat
backward or forward to the optimum
position for operation.
2. Release the lever (8) at the optimum
position to secure the seat.
Adjustment range: 17 positions, in 170
mm (6.7 in.)
2-14
Controls
Seat and seat belt
(L) Adjusting the headrest height
1. Grab the headrest (10) with both hands,
and move upward and downward. Adjust
the height so that the headrest center is
positioned behind your ears.
(M) Seat heater
Caution
• Using the seat heater over an extended
period of time may cause burns. People
feeling ill or having sensitive skin, in
particular, should be careful not to do
so.
• Do not use it with a blanket or cushion
placed on the seat.
• Clean up spilled water or soft drink
immediately with a dry cloth. Dry the
seat well before using the heater again.
IMPORTANT: The battery voltage
becomes low if the seat heater is left on
for a long time when the engine is
stopped.
O
OFF
I
ON
2-15
Controls
Instrument cluster
faulty or the air cleaner becomes
Instrument cluster
abnormal. Get the vehicle or engine error
code number from the multi-data display
and consult your sales or service dealer
referring to the “Vehicle error code list” or
“Engine error code list”.
2. Engine oil pressure warning lamp
This lamp flashes and an alarm is sounded
if the lubricant oil pressure abnormally low
while the engine is running.
3. Air cleaner warning lamp
This lamp flashes and an alarm is sounded
if the air cleaner filter is clogged while the
engine is running.
4. Third auxiliary hydraulic warning lamp
This lamp lights up and an alarm sounds if
the fixed side (left “e”) pressure of the third
auxiliary hydraulic line drops abnormally
while the engine is running, or while the
quick-hitch is being removed or installed.
5. Battery charge warning lamp
This lamp flashes and an alarm is sounded
if a problem rises in the charging system
Once the starter switch is turned to ON, all
while the engine is running.
lamps on the instrument cluster light up and
the alarm sounds.
6. Coolant temperature warning lamp
If any of the lamps are not lit, the globes may
This lamp flashes and an alarm is sounded
be blown. Consult your sales or service
if the engine coolant temperature
dealer.
becomes abnormally high while the engine
is running.
Warning lamps
7. Water separator warning lamp
This lamp flashes if the water is detected
IMPORTANT: If a warning lamp flashes
within the water separator while the starter
and an alarm is sounded, immediately
switch is in the ON position.
stop all operations and check the
corresponding component.
8. Overload warning lamp
Refer to “If a warning lamp flashes” on
This lamp turns on when the overload
pages 6-10 and 6-11.
waning switch is turned on.
1. Vehicle and engine emergency lamp
While the engine is running, this lamp
flashes and an alarm sounds if the engine
oil pressure drops, the coolant
temperature becomes too high, the
charge or the water separator becomes
2-16
Controls
Instrument cluster
Indicators
Meters
9. Glow lamp
14. Water temperature gauge
This lamp goes out when the engine
Indicates the temperature of the engine
preheating is completed.
coolant water.
The LED should be within the green
10. Travel speed lamp
range during machine operation.
This lamp turns on when the travel speed
The red range indicates overheating.
button is set to the 2nd (high) speed.
15. Fuel Gauge
11. Deceleration lamp
Indicates the amount of fuel in the tank.
This lamp turns on when the deceleration
Be sure to top off the tank before running
button is pressed. It flashes when the
out of fuel.
auto-deceleration switch is pressed and
changes to the “lit” state when the
system enters the deceleration mode.
While in the “lit” state, it indicates that the
engine is in the deceleration mode at low
idling speed (1100 rpm).
12. ECO mode indicator lamp
This lamp turns on when the ECO mode
switch is turned on. In the ECO mode,
the machine drives with reduced engine
RPM for lower fuel consumption.
13. Auxiliary 1st flow rate indicator lamp
This lamp lights up to indicate which flow
rate setting is selected in the auxiliary
1st.
1
Flow rate setting 1
2
Flow rate setting 2
3
Flow rate setting 3
2-17
Controls
Instrument cluster
Multi-data display
Trip mode display
16. LCD
The display changes as the TRIP (1) side is
pressed as follows.
When the starter switch is turned on, the
mode previously set (before the power-off) is
displayed
1. Hour meter
When the starter switch is turned to ON, the
display of hour meter, trip meter or the
Displays the total engine running time in
various data related to the machine appears.
hours.
The initial screen displays the hour meter or
The rightmost digit indicates tenths of
the trip meter.
hours (6 minutes).
Set the inspection and maintenance
IMPORTANT: If the vehicle or engine
intervals according to the time displayed
emergency lamp flashes and a number
on the hour meter.
appears on the vehivle or engine error
code screen, refer to the “Vehicle error
2. Trip meter
code list” or “Engine error code list” and
contact your sales or service dealer for
help
Trip/Data switch
A pattern of desired operating hour can be
displayed.
To reset the meter to “0”, press and hold
the TRIP side for three seconds.
3. Returns to the hour meter page.
Press either the TRIP (1) side or the DATA (2)
side to select a display mode.
• Press the TRIP (1) side to display the hour
meter or trip meter.
• Press the DATA (2) side to display the
various data.
2-18
Controls
Instrument cluster
Data mode display
4. Engine oil pressure
The display changes each time the DATA (2)
side is pressed as follows:
Note that for TB285, “4. Engine oil pressure”
and “5. Atmospheric pressure” will not be
displayed.
1. Engine RPM
Displays when the machine is TB290.
5. Atmospheric pressure
2. Battery voltage
Displays when the machine is TB290.
6. Auxiliary 1st flow rate
3. Coolant temperature
7. Auxiliary 2nd flow rate
8. Auxiliary 4th flow rate
9. Returns to the engine RPM page.
2-19
Controls
Instrument cluster
Maintenance mode display
The electric current value in the solenoid
that controls the auxiliary flow rate is
While in the data mode, press and hold the
displayed.
DATA (2) side for three seconds to enter the
The flow rate, except the flow rate of the
maintenance mode.The display changes
auxiliary 1st-1, can be changed when the
each time the DATA (2) side is pressed as
engine is at rest and the starter switch is
follows:
set to ON.
1. Vehicle error code
The actual flow rate is not in conjunction
with the value expressed in percent.
For setting the auxiliary piping flow rate,
ask your service or sales dealer.
Changing flow rate
a. Raise the safety lock lever to the lock
position.
IMPORTANT: If an error code appears,
b. Press and hold the auxiliary flow rate
immediately stop the operation and
select switch for approximately three
contact your sales or service dealer for
seconds to cause the values displayed
help.
on the L side to flash.
Displays two three or four-digit error codes,
c. Pressing the TRIP side of the Trip/Data
with the latest code in the left.
switch decreases the flow rate by 5%.
Refer to “Vehicle error code list” on page
Pressing and holding it for one second
6-12.
decreases the flow rate by 5%.
Pressing the DATA side of the Trip/Data
2. Engine error code
switch increases the flow rate by 5%.
Pressing and holding it for one second
increases the flow rate by 5%.
Initial
Variable
L
R
condition
range
Auxiliary 1st-1
100%
100%
—
IMPORTANT: If an error code appears,
10 to
Auxiliary 1st-2
75%
75%
immediately stop the operation and
100%
contact your sales or service dealer for
10 to
Auxiliary 1st-3
50%
50%
help.
100%
Displays three error codes, with the latest
10 to
code at the top.
Auxiliary 2nd
100%
100%
100%
Refer to “Engine error code list” on page
10 to
6-14.
Auxiliary 4th
100%
100%
100%
3. Auxiliary 1st-2 setting information
The table shows the electric current values.
d. Press the auxiliary flow rate select
switch to confirm. At this time, the
values on the R side start flashing.
Perform the same operation as for the L
side. The section to be set changes
each time the auxiliary flow rate select
switch is pressed.
2-20
Controls
Instrument cluster
e. Press and hold the auxiliary flow rate
8. Engine serial number
select switch for approximately three
seconds to end flow rate changing
operation.
4. Auxiliary 1st-3 setting information
9. Returns to the vehicle error code page.
Refer to “Auxiliary 1st-2 setting
information” above.
5. Auxiliary 2nd setting information
Refer to “Auxiliary 1st-2 setting
information” above.
6. Auxiliary 4th setting information
Refer to “Auxiliary 1st-2 setting
information” above.
This information is displayed if the auxiliary
4th is equipped.
7. Engine model
2-21
Controls
Instrument cluster
Other display
3. Blade float display
1. Swing/Second boom display
e: Blade float is selected.
a: Swing is selected.
4. Engine RPM display
b: Second boom is selected.
2. Auxiliary 2/4 display
f: The graph changes as the engine RPM
changes.
c: Auxiliary 2nd is selected.
d: Auxiliary 4th is selected.
Note: If there is no setting for the auxiliary
4th, the auxiliary 2nd will not be displayed.
2-22
Controls
Instrument cluster
5. Hour meter/Trip meter display
8. Overload warning display
g: Hour meter is selected.
j: Overload warning switch is on.
h: Trip meter is selected.
6. ECM warning display
IMPORTANT: If the ECM warning display
flashes and a number appears on the
engine error code screen, refer to the
“Engine error code list” and contact your
sales or service dealer for help.
This warning display flashes if the
Electronic Control Module (ECM) detects
an engine problem while the starter switch
is in the ON position. The data screen
appears with an ECM error code
indicating the problem just detected.
Refer to “Engine error code list” on page
6-14.
7. Highland mode display
i: Highland mode is selected.
2-23
Controls
Switches
Engine shutdown switch
Switches
Starter switch
This switch is used to shutdown the engine if
it fails to stop, due to machine failure or
IMPORTANT: Do not repeatedly switch
breakage, when the starter switch is set to
the key from OFF to ON and ON to OFF
the OFF position.
over a short period. Doing so will cause
1. Press the switch (1).
engine breakdown.
2. After use, reset the switch (1).
OFF
Position for stopping the engine
and inserting or removing the key.
Throttle controller
ON
Position in which the engine is
running. At this position, all the
electrical equipment is functional.
When the coolant temperature is
too low, the engine is
automatically preheated.
START Position for starting the engine.
When the key is released, the
switch automatically returns to the
ON position.
This controls the engine speed.
(A)
Low idling
(B)
Medium speed
(C)
Maximum speed
2-24
Controls
Switches
Horn button
This deceleration button operation has
priority even if the auto-deceleration switch is
turned on.
Note: This deceleration button is capable of
decreasing the engine speed and reducing
the fuel consumption, with a simple
operation, in a situation such as when little
engine output is required and thus the
operating or the travel levers are in neutral.
Travel speed button
Press the button situated on the right
operating lever to blow the horn.
Warning
When a load greater than a set value is
Deceleration button
applied while traveling in 2nd (high)
speed, the speed will automatically slow
down to 1st (low) speed. When the load
Warning
becomes lighter, the speed will increase
Before operating the deceleration button,
and return to 2nd (high) speed.
set the operating lever to the neutral
Remember that the travel speed changes
position and take your foot off the pedals.
depending on the load condition.
If the deceleration button is pressed while
driving, the machine’s operating speed
will abruptly change to result in a
dangerous situation.
Press this switch to set the travel speed to
2nd (high) speed. Press it again to return to
1st (low) speed.
Press this button on the right operating lever
to lower the engine speed to low idling.
Press the button again to return to the
engine speed set with the throttle controller.
For safety reasons, it is designed that the
deceleration function is activated to set the
engine revolutions to low idling whenever the
engine is started.
Cancel the deceleration mode by pressing
the deceleration button as necessary.
2-25
Controls
Switches
Auxiliary 1st switch
Refer to “Auxiliary hydraulic lines” on page
2-46 to 50.
Auxiliary hydraulic buttons
Auxiliary 2nd/4th switch
Slider switch
(Proportional control)
Proportional control allows for slow-to-fast/
fast-to-slow movement of attachment.
Example: If you move the slider switch half
way, the attachment will move at
approximately one-half the speed.
Press those buttons to control the flow of the
oil in the first auxiliary hydraulic lines.
• Proportional control of the auxiliary
hydraulic circuit is not possible.
(A)
Hydraulic oil flows to the left auxiliary
line (a).
(B)
Hydraulic oil flows to the right auxiliary
line (b).
Slider switch
(Proportional control)
Move this switch to control the flow of the oil
Proportional control allows for slow-to-fast/
in the second auxiliary hydraulic lines.
fast-to-slow movement of attachment.
(C):
Hydraulic oil flows to the left auxiliary
Example: If you move the slider switch half
line (c).
way, the attachment will move at
(D):
Hydraulic oil flows to the right auxiliary
approximately one-half the speed.
line (d).
Move this switch to control the flow of the oil
To use the auxiliary 4th hydraulic line, press
in the first auxiliary hydraulic lines.
the auxiliary 2/4 select button to change to
(A)
Hydraulic oil flows to the left auxiliary
the operation of the auxiliary 4th.
line (a).
Refer to “Auxiliary hydraulic lines” on page
(B)
Hydraulic oil flows to the right auxiliary
2-46.
line (b).
2-26
Controls
Switches
Swing/Second boom select button
Third auxiliary hydraulic button
Refer to “Third auxiliary hydraulic switch and
Warning
button” on page 2-49.
Turning on this switch while the boom
swing pedal is depressed is dangerous,
as the attachment may move
Auxiliary 2/4 select button
unexpectedly. Always set the boom swing
pedal back to the neutral position before
Refer to “Auxiliary 2/4 select button” on
operating the select switch.
2-50.
This switch is used to select either the boom
swing operation or the second boom
operation.
When the switch is turned on, the second
boom display (b) appears on the LCD to
indicate that the second boom operation is
enabled. When the switch is turned off, the
display is changed to the boom swing to
indicate (a) that the boom swing operation is
enabled.
The actual boom swing operation is
performed with the boom swing pedal.
Refer to “Boom swing pedal” on page 2-33.
2-27
Controls
Switches
Wiper switch
Automatic deceleration switch
IMPORTANT: If no washer fluid is
discharged, do not operate the washer.
Doing so may damage the pump.
IMPORTANT: Operating the wiper with no
moisture on the windshield will scratch
the glass. Use water or washer fluid when
operating the wiper.
IMPORTANT: In cold climates, the wiper
blade may freeze to the glass. Operating
the wiper forcibly may damage the wiper
motor.
When the ON side of the switch is pressed,
the deceleration lamp in the instrument
cluster flashes. This flashing stops when the
deceleration function starts working, and the
lamp remains lit while in the deceleration
mode. The engine speed automatically drops
to low idle (deceleration mode) four seconds
after the control levers are set to neutral, to
reduce fuel consumption. Moving the control
levers will cause the speed to return to the
original engine speed.
It is not possible to use the deceleration
OFF Off
button at the same time. The auto-
INT Intermittence operation
deceleration switch has priority over the
ON Continuous operation
deceleration button. Switching from the
deceleration button to the auto-deceleration
switch will first return to the engine speed set
Washer switch
with the throttle controller. Then, the engine
will automatically enter the deceleration
mode (low idling) if the control levers are not
operated within four seconds.
This automatic deceleration function is
canceled when the starter switch is turned to
the OFF position.
ON Pressing the ON side of the switch
causes the washer to spray washer
fluid. To stop spraying, release the
switch.
2-28
Controls
Switches
ECO mode switch
Auxiliary 1st flow select switch
When the ON side of the switch is pressed,
This switch is used to select and set the flow
the ECO mode lamp in the instrument cluster
rate of the auxiliary 1st.
lights up.
The auxiliary 1st flow rate indicator lamp in
The engine RPM and hydraulic horse power
the instrument cluster lights up to indicate
are set to economically optimal values to
which flow rate setting is selected. The flow
improve the fuel economy.
rate setting changes each time the ON side
of the switch is pressed.
The flow rate setting is done by using this
Highland mode switch
switch and the TRIP/DATA switch.
Refer to “3. Auxiliary 1st-2 setting
information” on page 2-20.
Detent mode switch (Auxiliary
1st)
This switch is used to reduce the engine load
due to the hydraulic pump. If the machine is
operated at a high-altitude site, the engine
output is decreased due to thin air. In such
cases, the hydraulic horse power is
automatically adjusted to prevent the engine
from stalling. Use this switch if the machine
IMPORTANT: Do not operate the machine
is operated at a high-altitude site.
in the detent mode for a long time. Doing
so will increase the hydraulic oil
OFF Lowland
temperature and shorten the service life
ON Highland
of the hydraulic units.
This switch is used to change the operation
mode of the auxiliary 1st button (A). Pressing
the ON side of the switch causes the
auxiliary button (A) to enter the detent mode.
2-29
Controls
Switches
Pressing the OFF side changes to the
is activated and the horn sounds. (When the
momentary mode.
overload warning switch is turned on.)
OFF
Off
ON
On
Light switch
If the emergency shut-off valve is activated,
the overload warning horn stops.
(This is because the pressure sensor can no
longer detect hydraulic pressure.)
Beacon lamp switch
When this switch is turned while the starter
switch is at ON, the lights turn on as follows:
OFF Off
ON Instrument cluster light, switch lamps,
front light, boom light, side lights and
tail lamps will be lit.
(switch lamp is lit)
When this switch is turned on while the
starter switch is at ON, the lamp turns on as
Overload warning switch
follows:
OFF
Off
ON
Beacon lamp is lit
Warning
If the overload is not removed after the
overload warning horn is sounded, the
machine may tip over or the emergency
shut-off valve may be activated. If the
horn starts sounding, stop operating the
machine and lighten the load.
If a weight greater than the lifting capacity is
applied or lifted, the overload warning device
2-30
Controls
Levers and Pedals
Operating levers
Levers and Pedals
Safety lock lever
Warning
• Before starting operation, carefully
Warning
check which lever pattern you are going
• Before standing up from the operator’s
to use.
seat to open/close the window or
• It is described using the ISO pattern in
remove/install the lower window, lower
this manual.
the working equipment to the ground,
raise the safety lock levers to engage
the lock and stop the engine. If any
controls should be accidentally touched
when the safety lock levers is lowered
(unlocked), the machine will suddenly
move and cause serious injury or death.
• Be careful not to touch the operating
levers when raising or lowering the
safety lock lever.
• Before leaving the operator’s seat, lower
the working equipment to the ground,
raise the safety lock levers to engage
Use these levers to operate the boom, arm,
the lock and stop the engine. Also, be
bucket and upperstructure.
sure to remove the key, lock the door
Refer to “Lever pattern” on pages 3-6 and
and covers, take it with you and store it
3-7.
in a specified place.
Refer to “Operating the working equipment”
on pages 3-14 and 3-15.
This device is for locking the operations of
hoe attachment, slewing, auxiliary, dozer
blade and traveling.
When the lever is raised, the lever stand
springs up to lock the lever.
2-31
Controls
Levers and Pedals
Blade lever
Float operation
Use this lever to operate the dozer blade.
Button (C) Float mode
(A)
Blade up
Press the float switch to set the
(B)
Blade down
dozer blade to the float mode.
Refer to “Operating the dozer blade” on
To cancel the float mode, press
page 3-15.
the switch again.
Machines with the float switch (USA
specification)
Warning
• Do not press the float button while the
machine is raised by the blade. Doing
so will cause the machine to fall. If you
must work beneath the raised machine,
always use a secure support to keep the
machine raised.
• Do not press the float button while the
blade is raised. Doing so will cause the
blade to fall. Lower the blade to the
ground before pressing the float button.
• Do not travel forward while the blade is
in the float mode.
2-32