Takeuchi Hydraulic Excavator TB285 (No.185000001~), TB290 (No.190000001~). Operator's Manual

Controls

Levers and Pedals

Travel levers/pedals

Boom swing pedal

Warning

• Before operating the travel levers/

Keep the pedal cover to the locked

pedals, make sure that the dozer blade

position when not using the pedal.

is to the front of the operator’s seat.

Stepping on a pedal accidentally when it

Remember that when the dozer blade is

is not locked may cause accidents.

to the rear of the operator’s seat, the

travel levers/pedals must be operated in

the reverse direction from when it is to

the front.

• Do not rest your foot on the pedal

unless operating it for traveling. If the

pedal is accidentally stepped while

working, the machine may suddenly

move and cause serious injury or death.

Use this pedal to operate the boom swing.

If the 2-piece boom select switch is pressed,

the operation will change to the second

boom.

(A)

Boom swing right/Second boom raise

(B)

Boom swing left/Second boom lower

Refer to “Operating the boom swing” on

page 3-15.

Use these levers/pedals to move forward or

Pedal lock

backward and to change directions. Fold the

pedals when not being used.

Refer to “Operating the travel levers” on

page 3-10.

Set the pedal cover over the pedal to lock it.

Open the pedal cover from the pedal to

unlock it.

2-33

Controls

Accessories

Do not overcool

Accessories

For health reasons, the air inside the cab

Air conditioner

should be kept at a temperature at which

you feel a little cool when entering the cab

Cautions on use

from outside (a difference of 5 to 6°C (41 to

43°F)). Remember to adjust the temperature

Ventilate periodically

properly.

• When using the air conditioner over an

extended period of time, open the

Do not turn on the air conditioner until the

windows about once each hour to let in

engine is started

fresh air.

To avoid placing an excessive load on the

• Your eyes may become irritated if you

compressor, wait until the engine is started

smoke while using the air conditioner. If this

and is running smoothly before turning on

happens, open the windows to let in fresh

the air conditioner.

air. Smoking particularly irritates the eyes

when the air conditioner is being used.

Let hot air out first

Since the humidity in the cab drops, the

If the machine has been parked in the sun,

cornea becomes dry.

open the windows and door to let the hot air

• If the outside air is dirty, set the air

out of the cab before using the air

conditioner to the circulation mode.

conditioner.

Always maintain good visibility

Caution on refrigerant (gas)

Working with the dirty windows or fogged

If the refrigerant comes in contact with skin

windows restricts visibility and is dangerous.

or eyes, it may cause frostbite or eye

Always clean dirt and moisture off the

damage. Never touch the refrigerant or

windows before working.

loosen the parts on the cooling circuit.

• The windows tend to get foggy when the

If the refrigerant gas leaks, keep flames

humidity is high. If this happens, turn on

away.

the air conditioner to use outside air and

the defroster to get rid of the fog.

Off-season inspection

• If the air conditioner is set to high when

Even off season, run the air conditioner for 3

using the defroster, the difference between

to 5 minutes at least once a week to

the external and internal temperatures

maintain oil in the various parts of the

increases, resulting in frost on the outside

compressor.

of the windows. If this happens, either turn

the air conditioner off or turn the

temperature control dial clockwise to

increase the internal temperature.

• Mist may blow out of the air outlets. This is

not a malfunction. When moist air passes

through the evaporator on the air

conditioner unit, water particles in the air

freeze and are emitted as mist.

2-34

Controls

Accessories

Air conditioner switch

Fan dial

IMPORTANT: To avoid placing an

excessive load on the compressor, wait

until the engine is started and is running

smoothly before turning on the air

conditioner.

Use this switch to adjust the fan speed in five

steps. Turning this switch to the OFF position

turns off the air conditioner.

AUTO The airflow rate can be

automatically adjusted based on

the position of the temperature

Use this switch to turn on or off the cooling/

control dial.

dehumidifying function. When this switch is

OFF

Turning off the fan and the air

pressed while the engine is running with the

conditioner.

fan dial set to ON, the lamp lights up and the

1 to 5

A larger number indicates larger

cooling/dehumidifying function is turned on.

airflow rate.

Press this switch again or turn the fan dial to

OFF to turn off the cooling/dehumidifying

Temperature control dial

function.

Lamp is off

OFF

Lamp is on

Note: To prevent leakage of refrigerant gas

from the compressor’s seal, operate the air

conditioner at least once a week, regardless

of the season.

Note: The air conditioner will not function if

the temperature in the cab is low (3°C (38°F)

or lower).

Use this dial to adjust the air temperature.

Turn the dial clockwise to increase the

temperature. Turn the dial counterclockwise

to decrease the temperature.

Note: No warm air is emitted if the

temperature of the engine coolant is low.

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Controls

Accessories

Outlet select dial

Outlets

Use this dial to select the desired outlet

Move the louvers up and down or left and

depending on the purpose of use.

right to adjust the air flow direction and

Air comes from the front and rear

amount.

outlets.

Air comes from the front, rear and

Operation

foot outlets.

Dehumidifying and Heating (in cold climates

Air comes from the foot outlet.

or when the humidity is high)

Arrange the air direction at each outlet.

Ventilation/Circulation select switch

Use this switch to select between Ventilation

and Circulation.

Press this switch once to turn on the lamp

and set to Circulation. Press this switch

again to turn off the lamp and set to

Ventilation.

Lamp is on

Circulation

• Cool or heat the cab quickly

Arrange the foot outlets and the defroster so

• When external air is dirty

that they are directed to the front window.

Lamp is off

Ventilation

Let the dehumidified warm air blow on the

• Lets in fresh air

front window, to prevent frosting.

• Removes frosting from the windows

1. Set the desired temperature by turning the

• Ventilates while cooling or heating

temperature control dial to between the

center and the right end.

2. Set the fan dial to the desired position.

2-37

Controls

Accessories

Cooling

Quick cooling

Caution

• When the air conditioner is set to the

circulation mode, the air in the cab

gradually becomes dirty. Switch to the

“ventilation” to ventilate once a

comfortable temperature is obtained.

• Excessive cooling can be harmful to

your health. It is best to keep the air

inside the cab only about 5 to 6°C (41 to

43°F) cooler than the outside air.

• If the machine has been parked in the

sun, open the windows and door to let

1. Turn the air outlet dial to the FACE or

the hot air out of the cab before using

FULL position.

the air conditioner.

2. Turn the temperature control dial to the left

end.

3. Set the fan dial to “5”.

4. Press the Ventilation/Circulation select

switch to set to circulation.

Heating

1. Turn the air outlet dial to the FOOT

position.

2. Set the fan dial to the desired position.

3. Set the temperature control dial to the

desired position.

For the highest temperature, turn the dial

1. Turn the air outlet dial to the FACE or

all the way to the right.

FULL position.

4. Turn the fan dial to the OFF position to

2. Set the desired temperature by turning the

turn off heating.

temperature control dial to between the

center and the left end.

3. Set the fan dial to the desired position.

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Controls

Accessories

Defrosting the windows

Cup holder

Note: If the air conditioner fan is set to High

Caution

when using the defroster, the difference

between the external and internal

• Drinks may be spilled due to vibration

temperatures increases, resulting in frost on

when the machine is operating or

the outside of the windows. If this happens,

traveling. Be particularly careful not to

either turn off the air conditioner or turn the

burn yourself with hot drinks.

temperature control dial clockwise to

• Note that the cigarette lighter or other

increase the internal temperature.

electric parts may be damaged if drinks

are spilled on them.

1. Set the desired temperature by turning the

temperature control dial to between the

Use to hold cups or bottles.

center and the left end.

To warm or cool the cup, turn the cup holder

2. Set the fan dial to the desired position.

in counterclockwise. Worm or cool wind

3. Press the Ventilation/Circulation select

blows from the bottom of the cup holder.

switch to set to ventilation.

4. Arrange the foot outlets and the back

outlets of the defroster so that they are

directed to the front window.

2-39

Controls

Accessories

Cigarette lighter

Ashtray

Warning

• Do not leave the cigarette lighter knob

• Be sure to extinguish cigarettes and

pushed in for a long time. Doing so

matches completely before putting

heats up the lighter, and could be

them in the ashtray, and close the

dangerous.

ashtray after each use.

• If the lighter knob does not pop out 30

• Do not overfill the ashtray with cigarette

seconds after it was pushed in, it may

butts or put in paper or other easily

be broken. Pull it out by hand.

burnable objects. Doing so could cause

• Do not use any other cigarette lighters

fire.

than Takeuchi’s. They could be stuck in

the middle and not pop out.

• Use only those electric products which

comply with the specifications of this

socket.

• Do not touch the metallic parts of the

lighter. Doing so could cause burns.

This is the cigarette lighter and internal

power supply socket.

When using, be careful not to exceed

12V/5A.

Pull the ashtray out towards you to use it. To

clean, press the ash discharge button (1) and

pull out the ashtray.

1. Push the lighter in.

2. Release the lighter and wait for it to pop

out. The lighter pops out automatically

when the heater becomes red hot.

3. Once the lighter pops out, pull it out.

2-40

Controls

Accessories

Interior light

External power sockets

IMPORTANT: The battery capacity

Warning

decreases if the interior light is left on for

a long time when the engine is stopped.

Use only those electric products which

comply with the specifications of these

sockets.

OFF

Remains off all the time.

Lights up all the time.

For beacon

Mirrors

Use these sockets to connect the external

power supply. When using, be careful not to

exceed 12V/5A.

To use, open the cap (1).

Adjust the rear view mirrors and side view

mirrors so that you have a better view.

1. Check the rear right side view

2. Check the rear left side view

3. Check the rear view.

2-41

Controls

Accessories

Radio (for cab)

Cautions on use

• To ensure safe operation of the machine, always be sure to keep the volume of the

radio down to a level where you can easily hear sounds from outside the machine.

• Do not use the radio for a long time when the engine is stopped. Doing so will drain

the battery and make it difficult or impossible to restart the engine.

• Be careful not to allow water or other liquids to come into contact with the radio.

Otherwise, it may result in malfunction.

Names of components

(1) POWER button

(4) CLOCK button

Use this button too turn on or off the

Use this button to switch between the

radio.

clock display and the receiving frequency

display on the LCD. If this button is not

(2) TONE control button

pressed for six seconds while the

Use this button to select the tone. Press

frequency is displayed, the LCD returns

the button to select low tone. The TONE

to the clock display.

LOW display appears on the LCD. Press

the button again to select high tone.

(5) AST button

Use this button to automatically seek the

(3) LCD

station information, store it into memory

Displays the time/the receiving frequency

and assign each preset button (1 to 6) a

and the operation mode.

station.

(6) PRESET STATION buttons (1 to 6)

Use these buttons to store station

information. Each button can store

information on one FM station and one

AM station. For how to use these

buttons, refer to “Presetting stations”.

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Controls

Accessories

(7)

TUNE button

(13)AUX-IN jack

Use this button to tune to a radio station.

Use this jack to connect an external

Press and hold this button (

) for

audio source. Pull off rubber cap and

two seconds or more to start seeking the

plug the stereo mini-plug of the external

audible stations. The seeking stops

audio device into this jack. Be sure that

when a station is found. To cancel tuning

jack is closed with the rubber cap when

in progress, press the button again.

not in use.

Pressing the

button will start seeking

stations with higher frequency. Pressing

Playing the radio

the

button will start seeking stations

1. Turn the ignition key to the ACC or ON

with lower frequency. The frequency will

position, and then press the power button

continuously be increased/decreased if

(1) to turn on the radio.

the

button is held pressed.

2. Select the band FM or Am with the band

button.

(8)

BAND button

3. Select the station with the preset button or

Use this button to select FM or AM. The

the tuning button, and adjust the volume

selected band and the receiving

with the volume button.

frequency will be displayed on the LCD.

4. To turn off the radio, press the power

button.

(9)

VOL buttons

Use these buttons to control the sound

Selecting a station-auto select

volume. Press the button

to increase

Press and hold the turn button

for two

the volume and the button

seconds or one to start seeking stations in

decrease the sound volume. Press and

the higher frequencies direction. Press and

hold each button to continuously

hold the button

for two seconds or more

increase/decrease the volume.

to start seeking stations in the lower

frequencies direction. The radio will stop

(10)MUTE button

seeking when it finds an audible station and

Use this button to temporarily turn off the

start playing.

sound output. If pressed, the “mute is

on” mark

appears on the LCD. Press

Selecting a station-manual select

this button again to cancel mute.

The selection can be done manually. Press

the tune

button to seek stations with

(11)ZERO button

higher frequencies. Press the tune

button

Use this button to set the minute to “00”

to seek stations with lower frequencies.

when it is between “55” to “59” or “01”

to “05”.

(12)AUX button

Use this button to choose which to listen

to, the radio or the external audio source

connected to the AUX-IN. If the external

source is chosen, the AUX display

appears on the LCD.

2-43

Controls

Accessories

Presetting stations

AUX audio connection

1. Select the band (FM or AM) and the

• Connect a portable audio player and listen

station you want to preset.

to your favorite music.

2. To set the selected station to a preset

• Plug a patch cord (without resistor) into the

button, choose the button to be set and

headphone jack of the audio player.

then press and hold the button for three

• Plug a stereo mini plug (3.5 mm) into the

seconds or more. The number of the

AUX-IN jack on the radio.

preset button chosen appears on the

• To listen to the audio player, press the AUX

LCD.

button. (The AUX display appears and the

3. For more stations, repeat the steps (1) and

frequency display is changed to the clock

(2) above.

display.)

• If the preset button on which a station

• To return to the radio, press the AUX

has been set to is pressed and held for

button again.

two seconds or more, the preset

• When connecting, adjust the sound volume

information will be modified.

level of the audio player so that it is same

• If the stored information is erased during

as that of the radio.

battery replacement on the vehicle, set

• Adjust the sound volume of the audio

the stations again to the preset buttons.

player by using the volume control buttons

• Each preset button can store information

on the radio.

on one FM station and one AM station.

• Do not connect a device with a larger

output compared with a portable audio

AUTO storing

player.

Press the AST button for two seconds or

more while playing the radio. The radio starts

Setting the clock time

seeking the audible stations obtained into

memory, and assign each preset button (1 to

6) a station.

Note: The previous station setting stored in

memory will be overwritten. If the

arrangement of the preset buttons to the

corresponding stations is not desirable, try

the “Presetting stations” described above.

• Be sure that the time is displayed on the

LCD. If not, press the AUX button to

display the time.

• Use the tune

button to set the minute.

Use the tune

button to set the hour.

• To set the minute digits to “00” when they

are from “55” to “59” or from “01” to “05”,

press the ZERO button.

2-44

Controls

Accessories

Resetting the radio

If there are any problems, such as the

abnormal display of frequency or failure of

selection, reset the radio by pressing the

power button and the ZERO button together.

Note: That the memory containing the clock

setting and the channel setting is cleared

after reset.

Specifications

Power source:

12/24 VDC

(negative ground)

Power consumption:

2 A

Maximum output power:

16 W + 16 W (4Ω)

(at DC 28.8 V input)

5W+5W (4Ω) (at DC

14.4 V input)

Rated output power:

14 W + 14 W (10%

distortion, 4Ω) (at

DC 28.8V input)

3.8 W + 3.8 W

(10% distortion, 4Ω)

(at DC 14.4V input)

Dimensions:

178 (W) x 50 (H) x

92 (D) mm (without

projections)

Receiving frequency:

MW (AM) 530 to

1602 kHz (EU,

Asia), 1710 kHz

(North, Central and

South America)

FM 87.9 to 108

MHz

Practical sensitivity:

MW (AM) 32 dB or

less (S/N 20 dB)

FM 12 dB or less

(S/N 30 dB)

S/N ratio:

MW (AM) 40 dB or

FM 60 dB or more

AUX IN:

Stereo mini jack

(3.5 mm); rated

input, 90 mV

Note: Specifications and dimensions may be

changed without notice.

2-45

Controls

Accessories

Auxiliary hydraulic lines

These lines deliver the hydraulic oil necessary

Warning

for operating a hydraulic breaker, crusher or

Oil may spurt out if pipes disconnected

other attachments.

before releasing the pressure in the

hydraulic system.

(1)

First auxiliary hydraulic lines

• Immediately after the engine is stopped

(2)

Second auxiliary hydraulic lines

and while the safety lock lever is still in

(3)

Third auxiliary hydraulic lines

the unlock position, turn the starter

(4)

Fourth auxiliary hydraulic lines

switch to ON and press each auxiliary

hydraulic switch several times to

Stop valve

release the pressure from the auxiliary

(S) : Closed

hydraulic circuit.

(O) : Open

• Press the air breather button to relieve

the tank pressure.

• When disconnecting hoses, stand to the

side and loosen them slowly to

gradually release the internal pressure

before removing.

2-46

Controls

Accessories

Connecting the hydraulic circuits

Disconnecting the hydraulic circuits

To connect the attachment hydraulic lines,

1. Release the pressure remaining in the

observe the following procedures:

lines, and then close the stop valve.

1. Release the pressure remaining in the

Refer to “Releasing the residual pressure”

lines, and then close the stop valve.

on page 2-48.

Refer to “Releasing the residual pressure”

2. Disconnect the lines from the ports (a/c)

on page 2-48.

and (b/d).

2. Remove the plugs.

3. Install the plugs.

3. Connect the attachment hydraulic lines to

ports (a/c) and (b/d). When installing a

hydraulic breaker, connect the supply

circuit to the port (a) and the return circuit

to port (b).

4. Open the stop valves. When installing a

hydraulic breaker, open the selector valve

(1). Refer to “Selector valve” on page

2-49.

5. When connecting is complete, purge air

from the hydraulic lines.

a. Start the engine and run it at a low idle

speed with no load for 10 minutes.

b. With the engine running in low idle,

operate the auxiliary hydraulic switches

repeatedly (approx. 10 times) to purge

air from the hydraulic lines.

c. Stop the engine and wait for at least 5

minutes until bubbles escape from the

hydraulic oil in the tank.

IMPORTANT: Follow the procedures for

purging air as instructed by the

attachment manufacturer, if applicable.

6. Check for oil leaks.

2-47

Controls

Accessories

Operating

Releasing the residual pressure

Press those buttons to control the flow of the

After the auxiliary hydraulic circuits have

oil in the first/second auxiliary hydraulic lines.

been used, pressure remains in the circuits.

(A)

Hydraulic oil flows to left auxiliary line

This is called the residual pressure. Release

(a).

this residual pressure before disconnecting

(B)

Hydraulic oil flows to right auxiliary line

the lines.

(b).

Perform the residual pressure releasing

(C)

Hydraulic oil flows to left auxiliary line

within 30 minutes after the engine stopping.

(c).

1. Park the machine on a flat, rigid and safe

(D)

Hydraulic oil flows to right auxiliary line

ground.

(d).

2. Stop the engine.

3. Lower the safety lock lever to the

unlocked position.

4. Turn the starter switch to the ON position.

5. Press the auxiliary hydraulic switches

several times to release the residual

pressure in the auxiliary hydraulic circuitry.

2-48

Controls

Accessories

Selector valve

when the button (1) and the switch (2) are

pressed at the same time. When they are

pressed, the hydraulic oil flows into the line (f)

to increase the pressure there. As the result,

the pin on the bucket comes out and the

bucket is removed from the machine.

Third auxiliary hydraulic warning lamp

Open

When using a hydraulic breaker

(1-way flow)

Closed When using a reversible

attachment (2-way flow)

Change the direction of the hydraulic oil flow

by opening or closing the selector valve (1)

inside the fuel lid.

Use the high-flow only in the 2-way flow. If it

This lamp illuminates and an alarm sounds

is used in the one-way flow, the brake may

when the third auxiliary hydraulic pressure

overheat.

drops abnormally, when the safety lock lever

is fully lowered to the unlocked position while

Third auxiliary hydraulic switch and

the engine is running.

button

The third auxiliary hydraulic lines are normally

used to control the “quick attachment”

installed to connect/disconnect the bucket.

When the safety lock lever is released after

the engine is started, hydraulic oil flows into

the pipe (e). This allows the pressure in the

(e) side to increase and to prevent the pin

inserted on the bucket from coming out. If

the pressure in the (e) side drops, the alert

that the bucket may come out is indicated by

the warning lamp and the alarm. For a safety

reason, the bucket can be disconnected only

2-49

Controls

Accessories

Auxiliary 2/4 select button

This button is used to change from the

second auxiliary operation to the fourth

auxiliary operation.

Pressing this button displays the second

auxiliary on the LCD to indicate that the

second auxiliary operation is enabled.

Pressing this button again displays the

auxiliary 4th on the LCD to indicate that the

auxiliary 4th operation is enabled.

The actual operation is performed with the

auxiliary 2nd/4th switch (slider switch).

Refer to “Auxiliary 2nd/4th switch” on page

2-26.

2-50

Controls

Accessories

Operating the machine with an

accumulator

Warning

Be sure to handle the high-pressure

nitrogen gas enclosed in the accumulator

with care. If handled incorrectly, it could

explode and cause serious injury. Strictly

observe the following precautions:

• Do not disassemble.

• Do not allow flame near or throw it into

6. Move or press the auxiliary hydraulic

a fire.

switches several times to release the

• Do not drill, weld or fuse.

residual pressure in the circuitry.

• Do not subject it to physical shock such

7. Move all the control levers and pedals

as hitting, rolling or dropping.

several times in all directions to release the

• Before disposing of the unit, the sealed

pressure from the working equipment

gas must be drained. Contact a

circuitry.

Takeuchi service agent for help.

8. Raise the safety lock lever to engage the

lock.

For a machine with an accumulator, the

residual pressure in the auxiliary hydraulic

Lowering the boom when the engine has

circuit or the working equipment circuit can

stopped

be released even after the engine is stopped.

Perform this operation within 10 minutes

after the engine stopping.

Releasing residual pressure

1. Sit at the operator’s seat.

Residual pressure refers to the pressure that

2. Turn the starter switch to the ON position.

remains in the hydraulic circuit after the

3. Lower the safety lock lever to the unlock

operation. Release the residual pressure as

position

necessary by using the following steps.

4. Slowly push the operating lever forward to

Perform the residual pressure releasing

lower the boom.

within 10 minutes after the engine stopping.

1. Return the throttle controller to idle the

engine at low speed.

2. Lower the bucket and dozer blade to the

ground.

3. Check that the safety lock lever is in the

released position.

4. Stop the engine.

5. Turn the starter switch to the ON position.

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Controls

Accessories

Load safety device

Second boom

The load safety devices include an

emergency shut-off valve and an overload

warning device. The emergency shut-off

valve prevents the boom or arm from falling.

The overload warning device sounds an

alarm when an excessive load is detected.

Emergency shut-off valve

The emergency shut-off valve prevents the

boom or arm from falling rapidly.

Warning

If the emergency shut-off valve is

Arm (option)

activated and the boom or arm falls,

immediately move away from the load

being lifted and go to a safe location.

Boom

If the emergency shut-off valve (1) or (2) is

activated, immediately set the operating

levers to the neutral position. Do not move

the operating lever to the boom or arm

lowering side. Ask your sales or service

dealer for repair.

2-Piece boom

If the engine can be started without

problems, the boom or arm can be lowered

with the operating lever. Slowly lower the

boom or arm while ensuring safety.

Procedure 1 (when engine can be started)

Perform this operation within 10 minutes

after the engine stopping.

1. Sit at the operator’s seat.

2. Turn the starter switch to the ON position.

3. Lower the safety lock lever to the unlock

position

4. Slowly push the operating lever forward to

lower the boom.

2-52

Controls

Accessories

Procedure 2 (when engine cannot be

wrench.

started)

3. The oil in the boom cylinder is drained and

This operation is dangerous and requires

the hoe attachment is lowered.

experience. Ask your sales or service dealer

4. After the hoe attachment is lowered to the

for it.

ground, check the safety and stability of

the machine.

Warning

5. Hold the hose fitting (1) with a wrench and

• Stop the engine and allow the machine

tighten the hose nut (2) with another

to cool down before performing

wrench.

maintenance.

· Tightening torque: 24.5 to 29.4 N·m

· The engine and the hydraulic system

(18.1 to 21.7 ft-lb.)

and many other parts of the machine

are hot immediately after the engine is

stopped. Touching these parts will

Overload warning device

cause burns.

· The hydraulic oil is also hot and under

If a weight greater than the lifting capacity is

high pressure immediately after the

applied or lifted, the overload warning device

engine is stopped.

is activated and the horn sounds. (When the

Be careful when loosening the caps or

overload warning switch is turned on.)

plugs. Working on the machine under

Warning

these conditions could result in burns

or injuries due to the hot oil spurting

If the overload is not removed after the

out.

overload warning horn is sounded, the

• Keep away from the working area when

machine may tip over or the emergency

the hoe attachment is lowered. You may

shut-off valve may be activated. If the

be hit by dirt falling out of the bucket or

horn starts sounding, stop operating the

the hoe attachment as it drops.

machine and lighten the load.

• Stand in a position away from danger of

lowering boom and loosen the hose nut.

Otherwise, you could be hit by the

boom.

• Do not loosen or remove the hoses not

located in the specified places. Oil may

spurt out if wrongly handled.

Overload warning switch (1)

OFF

Off

If the emergency shut-off valve is activated,

the overload warning horn stops.

(This is because the pressure sensor can no

1. Place a pan under the hose to catch the

longer detect hydraulic pressure.)

waste oil.

2. Hold the hose fitting (1) with a wrench and

loosen the hose nut (2) with another

2-53

Controls

Accessories

Fuel Supply Pump

This device automatically supplies fuel to the

fuel tank and stops automatically when the

fuel tank is full.

Danger

Do not use the fuel supply pump for

gasoline or hydraulic oil. Doing so could

result in explosion or damage.

Only use the fuel supply pump for diesel

fuel.

1. Open the side cover.

2. Insert the pump’s nozzle (1) in the fuel

supply tank.

3. Press the switch (2).

The pump stops automatically once the

fuel tank is full.

4. Turn off the switch.

5. Store the nozzle.

2-54

Operation

Before starting operation

Walk-around inspection

Before starting

Perform the walk-around inspections once a

operation

day before starting the engine for the first

Getting on or off the machine

time that day.

Refer to “MAINTENANCE, Walk-around

inspection”, on pages 5-14 and 5-15.

Warning

• Do not jump on or down from the

machine. Never attempt to get on or off

Daily inspection

the moving machine.

• When getting on or off the cab, first fully

Perform the daily inspections once a day

open the door to the locked position

before starting the engine for the first time.

and check that it does not move.

Refer to “MAINTENANCE, Daily inspection”,

on pages 5-16 to 5-21.

• Climb up/down the steps holding the

handrail to support your weight in a

three point secure stance (hand and

feet).

• Never use the safety lock lever or

control levers as hand holds.

3-2

Operation

Starting and stopping the engine

5. Insert the key into the starter switch, turn it

Starting and stopping

to the ON position, then perform the

following inspections:

the engine

Before starting the engine

1. Adjust the seat for a comfortable operating

position.

2. Fasten the seat belt.

· All warning lamps flash and an alarm is

sounded for two seconds. The meters

also start functioning. After two seconds,

the deceleration lamp (7) stops flashing

and remains lit, while the battery charge

warning lamp (1) and engine oil pressure

3. Check that the safety lock lever is in the

warning lamp (2) remain flashing. (If the

locked position.

auxiliary 3rd is selected, it is also

flashing.) The other lamps go out.

· Turn the light switch to check that the

boom light, front light, side lights, tail

lamps and meter light turn on.

· Check the fuel level.

If a lamp does not light or the alarm is not

sounded, the bulb may be burnt out or a

wire may be damaged. Ask a Takeuchi

service agent for repair.

4. Check that all levers and pedals are in the

neutral position.

3-3

Operation

Starting and stopping the engine

Starting the Engine

Starting in cold climates

Warning

Never use starting fluid on this engine, as

• Clear all personnel from the work area.

the starting fluid could cause an

• Sound the horn to warn people around

explosion.

the machine.

IMPORTANT: Do not run the starter motor

for more than 15 consecutive seconds. If

the engine fails to start, wait for 30

seconds, and then try again to start the

engine.

Normal starting

1. Turn the throttle controller to the middle

position.

1. Turn the starter key to the START position

and start the engine.

2. Once the engine starts, release the key.

The key automatically returns to the ON

position.

3. Check that the warning lamps are off.

2. Turn the starter key to the ON position,

For safety reasons, it is designed that the

and confirm that the glow lamp is lit. (The

deceleration function is activated to set

glow lamp stays lit when the coolant

the engine revolutions to low idling

temperature is -10°C (14F°) for 15

whenever the engine is started.

seconds (TB285) or 2 seconds (TB290).)

Cancel the deceleration mode by pressing

3. After the glow lamp goes out, press the

the deceleration button as necessary.

deceleration button (to cancel the

4. Warm up the engine.

deceleration mode), and then turn the key

Refer to “Warming up the engine” on page

to the START position to start the engine.

3-5.

4. Once the engine starts, release the key.

5. After the completion of the warming up,

The key automatically returns to the ON

press the deceleration button to cancel

position.

the deceleration mode.

5. Check that the warning lamps are off.

6. Return the throttle controller to the original

position and warm up the engine.

Refer to “Warming up the engine”.

3-4

Operation

Starting and stopping the engine

Warming up the engine

Stopping the engine

IMPORTANT: Avoid racing the engine until

IMPORTANT: Do not stop the engine

it has warmed up.

suddenly when operating with heavy

Do not warm up the engine for a long time

loads or at the maximum speed. Doing so

(20 minutes or more). When idling is

may cause the engine to overheat or

required, occasionally place a load or run

seize. Never stop running the engine

the engine at medium speed.

suddenly except in emergency.

1. Return the throttle controller, and then run

1. Return the throttle controller.

at a low idle with no load for 5 minutes.

2. Idle the engine for about 5 minutes to

gradually let it cool.

3. Turn the starter key to the OFF position to

stop the engine.

3-5

Operation

Operating the machine

Lever pattern (ISO pattern)

Warning

• Before starting operation, carefully check which lever pattern you are going to use.

• It is described using the ISO pattern in this manual.

Left crawler forward

Right crawler forward

Left crawler reverse

Right crawler reverse

Arm out

Boom lower

Arm in

Boom raise

Upperstructure slew left

Bucket load

Upperstructure slew right

Bucket dump

Boom swing left

Dozer blade lower

Second boom raise (2-piece boom)

Boom swing right

Dozer blade raise

Second boom lower (2-piece boom)

3-6

Operation

Operating the machine

Lever pattern (JCB pattern)

Warning

• Before starting operation, carefully check which lever pattern you are going to use.

• It is described using the ISO pattern in this manual.

Left crawler forward

Right crawler forward

Left crawler reverse

Right crawler reverse

Boom lower

Arm out

Boom raise

Arm in

Upperstructure slew left

Bucket load

Upperstructure slew right

Bucket dump

Boom swing left

Dozer blade lower

Second boom raise (2-piece boom)

Boom swing right

Dozer blade raise

Second boom lower (2-piece boom)

3-7

Operation

Operating the machine

Warming up the machine

(hydraulic oil)

Warning

Operating the working equipment without

warming up the machine (hydraulic oil) is

dangerous, as the working equipment

cannot response to controls quickly or

may move in unexpected ways, and the

safety devices may not operate properly.

Be sure to sufficiently warm up the

2. Fully lower the safety lock lever to

machine.

disengage the lock and lift the bucket from

the ground.

IMPORTANT: Do not operate the levers

too quickly when the hydraulic oil

temperature is below 20°C (68°F). The

proper hydraulic oil temperature during

operation is 50 to 80°C (122 to 176°F). If

operations must be performed at lower

temperatures, heat up the hydraulic oil to

at least 20°C (68°F).

Normal warm-up

3. Extend and retract each of the cylinders

slowly several times with no load.

1. Turn the throttle controller to the middle

position, and then run the engine at

medium speed for about five minutes with

no load.

4. Slew slowly to the left and the right several

times.

3-8

Operation

Operating the machine

Inspection after warm-up

After warming up the engine and machine

(hydraulic oil), perform the checks and

inspections described below, and repair if

necessary.

5. Travel slowly forward and in reverse

several times.

Warm-up in cold climates

1. Perform the normal warm-up procedure.

1. Check that the warning lamps and meters

are as follows:

· Are all warning lamps off?

· Is the LED on water temperature gauge

seen within the green range?

2. Check that there are no irregularities in the

exhaust color, sound and vibrations.

2. Set the bucket cylinder at the stroke end

and keep it there.

Do not keep this condition for more than

30 seconds.

3. Repeat Step 2 until the bucket operating

speed becomes normal.

3. Raise the safety lock lever to the locked

position, and then check that the

operating and travel levers are locked.

3-9

Operation

Operating the machine

Operating the travel levers

Moving the machine forward and

backward

Warning

• Never allow anyone to enter the

machine’s slewing radius and path.

• Signal your intention to move by

sounding the horn.

• There is a blind spot in the rear of the

machine. Before traveling in reverse, as

necessary, swing the cab around in

reverse to check that the area is safe

and clear.

1. Turn the throttle controller and increase

the engine speed.

• Before operating the travel levers/

pedals, make sure that the dozer blade

is to the front of the operator’s seat.

Remember that when the dozer blade is

2. Fully lower the safety lock lever to

to the rear of the operator’s seat, the

disengage the lock.

travel levers/pedals must be operated in

the reverse direction from when it is to

the front.

• Clear all obstacles from the path of the

machine.

3. Fold the hoe attachment and lower it 30 to

40 cm (12 to 16 in.) above the ground.

4. Lift the dozer blade.

5. Operate the left and right travel levers as

below.

3-10

Operation

Operating the machine

Traveling in 2nd (High) speed

Warning

When a load greater than a set value is

applied during traveling in 2nd (high)

speed, the speed will automatically slow

down to 1st (low) speed. When the load

becomes lighter, the speed will increase

and return to 2nd (high) speed. It should

be noted that the travel speed changes

depending on the load condition (for

When the dozer blade is in front of the

machines with the automatic travel shift-

operator’s seat:

down system).

To move forward:

Tilt the levers forward.

To move backward:

Tilt the levers backward.

Press the travel speed switch to set to the

2nd (high) speed, and press it again to return

to the 1st (low) speed.

When the dozer blade is behind the

operator’s seat:

To move forward:

Tilt the levers backward.

To move backward:

Tilt the levers forward.

3-11

Operation

Operating the machine

Pivot turn

Spin turn

Turning to the left when stopped:

To spin left:

To turn forward to the left:

Tilt the left lever backward and the right

Tilt the right lever forward.

lever forward.

To turn backward to the left:

To spin right:

Tilt the right lever backward.

Tilt the right lever backward and the left

To turn to the right, operate the left lever in

lever forward.

the same way as for the right lever.

Turning to the left while traveling:

To turn left while traveling forward:

Set the left lever to neutral.

To turn left while traveling backward:

Set the left lever to neutral.

To turn to the right while traveling, operate

the right lever in the same way as for the left

lever.

3-12

Operation

Operating the machine

Stopping travel

Warning

• Park the machine on a flat, rigid and

safe ground. Set the parking brake. If

you must park on a slope, chock the

tracks to block the machine.

• If any control is accidentally touched

when the safety lock lever is not locked,

the machine may suddenly move and

cause serious injury or death.

Caution

Never stop running the machine suddenly

except in emergency. Stop in good time,

if possible.

1. Set the left and right travel levers slowly to

the neutral position. The machine stops.

3-13

Operation

Operating the machine

Operating the working equipment

Slewing

Warning

Check the surrounding area for safety

• Before starting operation, carefully

before slewing.

check which lever pattern you are going

to use.

• It is described using the ISO pattern in

this manual.

Upperstructure slew left:

Tilt the left operating lever to the left.

Upperstructure slew right:

Tilt the left operating lever to the right.

Use the right operating lever to operate the

boom and bucket.

Operating the boom

Use the left operating lever to operate the

arm and slewing.

Return the operating levers to the neutral

position to stop the hoe attachments.

1. Lower the safety lock lever to the

unlocked position.

2. Set the pedal cover to the unlocked

position.

Boom lower:

Tilt the right operating lever forward.

Boom raise:

Tilt the right operating lever backward.

3-14

Operation

Operating the machine

Operating the arm

Boom swing left:

Step on the left side of the pedal.

Boom swing right:

Step on the right side of the pedal.

Operating the second boom

Arm in:

Tilt the left operating lever backward.

Arm out:

Tilt the left operating lever forward.

Operating the bucket

Second boom raise:

Step on the left side of the pedal.

Second boom lower:

Step on the right side of the pedal.

Operating the dozer blade

Bucket load:

Tilt the right operating lever to the left.

Bucket dump:

Tilt the right operating lever to the right.

Operating the boom swing

Dozer blade lower:

Tilt the lever forward.

Dozer blade raise:

Tilt the lever backward.

3-15

Operation

Operating procedures

Be gentle when using the hydraulic

Operating procedures

cylinder

Prohibited operations

Warning

• Do not operate on bedrock (hard or

soft).

• Do not slew while traveling. If you must

operate the hoe attachment while

traveling, operate at speeds slow

enough so you have complete control at

all times.

Do not perform demolition or leveling

Do not extend the hydraulic cylinders to the

using slew force

stroke ends. Operate them with leeway.

Do not demolish walls or level ground using

Do not support the machine body with the

slew force. Also, do not dig the bucket teeth

hoe attachment when the body is lowering

into the ground during slewing. Doing so will

with the arm cylinder fully extended. Doing

damage the hoe attachment.

so concentrates the load on the arm cylinder

and could damage the arm cylinder.

Do not dig while traveling

Do not dig the bucket into the ground and

use the traveling force to dig.

3-16

Operation

Operating procedures

Do not drive piles with the bucket or dig

Digging bedrock

by banging the bucket

For hard base rock, break the rock up into

Doing so will shorten the service life of the

small pieces with a breaker, etc., before

hoe attachment. Use the hydraulic force to

digging. This prevents damage to the

dig.

machine and is thus more economical in the

end.

Do not perform operations using the

machine’s dropping force

Caution on exposing the dozer blade to

shocks

Hitting the dozer blade against rocks, etc.,

could damage the dozer blade or the blade

cylinder.

Putting excessive strain on the machine will

shorten its service life. When digging, use the

hydraulic force of the cylinders and the

shallow and long strokes.

3-17

Operation

Operating procedures

Caution on folding the hoe attachment

Pay attention to the dozer blade when

digging

Be careful not to let the bucket to hit the

dozer blade when the hoe attachment is

When digging deeply with the dozer blade

being folded.

positioned at the front, be careful that the

boom cylinder and bucket do not hit the

Do not use the dozer blade as an

dozer blade.

outrigger

Operate with the dozer blade at the rear

whenever possible.

Caution on digging down with the dozer

blade

This dozer blade is designed for simple earth

pushing. Do not dig down deeply with the

dozer blade. Doing so could damage the

dozer blade and undercarriage.

3-18

Takeuchi Hydraulic Excavator TB285 (No.185000001~), TB290 (No.190000001~). Operator's Manual - page 3