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Takeuchi Mini Excavator TB216 (No.216000002~, No.216100002~). Operator's Manual - page 3

Controls

Accessories

Heater valve

Coolant circulates in the heater even when

the heater switch is turned off.

When the heater is no longer needed, stop

coolant circulation as follows.

IMPORTANT: Use the valve (1) either fully

open or fully closed.

Cooling water could leak when the valve

is partly opened.

1. Park the machine on a level surface and

stop the engine.

2. Open the engine hood.

3. Turn the valve (1) clockwise until it stops to

close it.

Filters

Clean the filters immediately after operating

in dusty places.

If the filters are clogged, the air flow is

reduced and a booming sound is heard from

the heater unit.

Refer to “Cleaning the air filters” on page

5-39.

2-35

Controls

Accessories

Cup holder

Interior light

IMPORTANT: The battery capacity

decreases if the interior light is left on for

• Drinks may be spilled due to vibration

a long time when the engine is stopped.

when the machine is operating or

traveling. Be particularly careful not to

burn yourself with hot drinks.

• Note that the cigarette lighter or other

electric parts may be damaged if drinks

are spilled on them.

OFF

Remains off all the time.

ON

Lights up all the time.

Inside rear view mirror (cab)

Pull out the cup holder towards you to use it.

Push in the holder for storage after use.

Adjust the rear view mirror to have a better

rear view.

2-36

Controls

Accessories

Power sockets

Armrest

Use only those electric products which

comply with the specifications of these

sockets.

Adjusting the height

1. Loosen the lock by turning the bolts (1)

counterclockwise.

2. Set the armrest to your desired position,

and turn the bolts (1) clockwise to lock the

armrest.

For beacon

Use these sockets to connect the power

supply. When using, be careful not to exceed

12V/5A.

To use, open the cap (1).

2-37

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) Auto store/Auto seek station (AST)

Use this button too turn on or off the

Press this button to automatically assign

radio.

receivable radio stations to preset

buttons (1 to 6).

(2) LCD

Displays the time/the receiving frequency

(5) Tuning button (TUNE

)

and the operation mode.

Press and hold this button ( or

) for

one second or more to start seeking the

(3) Display button (DISP)

receivable stations. The seeking stops

Pressing this button while the frequency

when a station is found. To cancel tuning

is displayed on the LCD changes the

halfway, press the button again.

display to the clock. Pressing the button

Pressing the TUNE button

starts

again returns to the frequency. If the

seeking stations with higher frequency.

button is not pressed for five seconds,

Pressing the TUNE button

starts

the display returns to the frequency.

seeking stations with lower frequency.

The frequency changes as either button

is pressed in one second intervals.

2-38

Controls

Accessories

Presetting stations

Auxiliary input (AUX)

1. Press the BAND button to select a band

• Connect a portable audio player and listen

(MW (AM) or FM), and then select the

to your favorite music.

station by pressing the TUNE button for

• Plug a patch cord (without resistor) into the

seeking.

headphone jack of the audio player.

2. To assign the selected station to a preset

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

button, press and hold the button to be

AUX-IN jack on the radio.

assigned for one second or more. The

• To listen to an external portable audio

number of the preset button appears on

player, press the AUX button. (The “AUX”

the LCD.

display appears on the LCD and the

3. For more stations to preset, repeat the

frequency display is changed to the clock

steps (1) and (2) above.

display.)

• If the preset button on which a station

• To return to the radio, press the AUX

has been assigned is pressed and held

button again.

for one second 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,

• Adjust the sound volume of the audio

assign the stations again to the preset

player by using the volume control buttons

buttons.

on the radio.

• Each preset button can store three FM

• Do not connect a device with a larger

stations (one from each FM1, FM2, FM3)

output compared with a portable audio

and one AM station.

player.

Auto storing (AST)

Setting the clock

Press the AST button while playing the radio.

The radio automatically starts seeking the

receivable stations within the band currently

selected and assign each preset button (1 to

6) a station.

Note: The previous stations stored will be

cleared (cancelled) by the auto storing. If the

station stored in the preset button is not

desirable, try to preset the station manually.

• If a frequency is displayed on the LCD,

press the AUX button (auxiliary input) to

display the clock.

• 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.

2-40

Controls

Accessories

Auxiliary hydraulic lines

First / second auxiliary hydraulic lines (If equipped)

Third auxiliary hydraulic lines (If equipped)

press each auxiliary hydraulic pedal and

second auxiliary switch several times to

Oil may spurt out if pipes disconnected

release the pressure from the auxiliary

before releasing the pressure in the

hydraulic circuit.

hydraulic system.

• Slowly loosen the air bleeding plug to

• Immediately after the engine is stopped,

relieve the internal pressure of the

2-42

Controls

Accessories

hydraulic oil tank.

IMPORTANT: Follow the procedures for

• When disconnecting hoses, stand to the

purging air as instructed by the

side and loosen them slowly to

attachment manufacturer, if applicable.

gradually release the internal pressure

before removing.

6. Check for oil leaks.

These lines deliver the hydraulic oil necessary

Disconnecting the hydraulic circuits

for operating a hydraulic breaker, crusher or

1. Release the pressure remaining in the

other attachments.

lines, and then close the stop valve.

Refer to “Releasing the residual pressure”

(1)

First auxiliary hydraulic lines

on page 2-43.

(2)

Second auxiliary hydraulic lines

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

(3)

Third auxiliary hydraulic lines

and (b/d).

3. Install the plugs.

Stop valve

(S) : Closed

Operating

(O) : Open

Connecting the hydraulic circuits

To connect the attachment hydraulic lines,

observe the following procedures:

1. Release the pressure remaining in the

A

B

lines, and then close the stop valve.

Refer to “Releasing the residual pressure”

on page 2-43.

2. Remove the plugs.

3. Connect the attachment hydraulic lines to

AD6B033

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

hydraulic breaker, connect the supply

Press this pedal to control the flow of the oil

circuit to the port (a) and the return circuit

in the auxiliary hydraulic lines.

to port (b).

(A)

Hydraulic oil flows to left auxiliary line

4. Open the stop valves. When installing a

(a).

hydraulic breaker, open the selector valve

(B)

Hydraulic oil flows to right auxiliary line

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

(b).

page 2-44.

5. When connecting is complete, purge air

Releasing the residual pressure

from the hydraulic lines.

After the auxiliary hydraulic circuits have

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

been used, pressure remains in the circuits.

speed with no load for 10 minutes.

This is called the residual pressure. Release

b. With the engine running in low idle,

this residual pressure before disconnecting

operate the auxiliary hydraulic switches

the lines.

repeatedly (approx. 10 times) to purge

1. When the engine is stopped, depress the

air from the hydraulic lines.

auxiliary hydraulic pedals from side to side

c. Stop the engine and wait for at least 5

several times.

minutes until bubbles escape from the

hydraulic oil in the tank.

2-43

Controls

Accessories

Selector valve (Option)

Third auxiliary hydraulic switch and

button

Open

When using a hydraulic breaker

(1-way flow)

The third auxiliary hydraulic lines are normally

Closed When using a reversible

used to control the “quick attachment”

attachment (2-way flow)

installed to connect/disconnect the bucket.

Change the direction of the hydraulic oil flow

When the safety lock lever is released after

by opening or closing the selector valve (1)

the engine is started, hydraulic oil flows into

on the machine body.

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

Second auxiliary hydraulic switch

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

that the bucket may come out is indicated by

Slider switch

the warning lamp and the alarm. For a safety

(Proportional control)

reason, the bucket can be disconnected only

Proportional control allows for slow-to-fast/

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

fast-to-slow movement of attachment.

pressed at the same time. When they are

Example: If you move the slider switch half

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

way, the attachment will move at

to increase the pressure there. As the result,

approximately one-half the speed.

the pin on the bucket comes out and the

bucket is removed from the machine.

Move this switch to control the flow of the oil

in the second auxiliary hydraulic lines.

(C): Hydraulic oil flows to the left auxiliary line (c).

(D):

Hydraulic oil flows to the right auxiliary line (d).

Releasing the residual pressure

Refer to “Accumulator” on page 2-46.

2-44

Controls

Accessories

Adjusting the stroke of auxiliary hydraulic

When using a reversible attachment

pedal

(2-way flow)

When a breaker is used, the pedal stroke

must be adjusted so as not to activate the

A

B

right auxiliary hydraulic line even if the B side

of the pedal is accidentally depressed.

When a general attachment is used, the

pedal stroke must be readjusted. Adjust it so

that the right auxiliary hydraulic line is

activated when the B side of the pedal is

2

depressed.

1

When using a hydraulic breaker

AD6C014

(1-way flow)

1. Loosen the lock nut (1) and screw in the

adjustment bolt (2) to the end.

2. Depress the B side of the auxiliary

hydraulic pedal to the stroke end and hold

A

B

its position.

3. Loosen the adjustment bolt (2) until it

touches the pedal.

4. Fasten the lock nut (1) to secure the

2

adjustment bolt (2).

1

AD6C013

1. Make sure that the auxiliary hydraulic

pedal is in the neutral position.

2. Loosen the lock nut (1).

3. Loosen the adjustment bolt (2) until it

touches the pedal.

4. Fasten the lock nut (1) to secure the

adjustment bolt (2).

2-45

Controls

Accessories

Accumulator (If equipped)

Operating the machine with an

accumulator

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.

6. Move the auxiliary 2nd switch several

• Do not allow flame near or throw it into

times to release the residual pressure in

a fire.

the circuitry. (If equipped)

• Do not drill, weld or fuse.

7. Move all the control levers and pedals

• Do not subject it to physical shock such

several times in all directions to release the

as hitting, rolling or dropping.

pressure from the working equipment

• Before disposing of the unit, the sealed

circuitry.

gas must be drained. Contact a

8. Raise the safety lock lever to engage the

Takeuchi service agent for help.

lock.

For a machine with an accumulator, the

Lowering the boom when the engine has

residual pressure in the auxiliary hydraulic

stopped

circuit or the working equipment circuit can

Perform this operation within 10 minutes

be released even after the engine is stopped.

after the engine stopping.

1. Check that the safety lock lever is in the

Releasing residual pressure

released position.

Residual pressure refers to the pressure that

2. Check that the starter switch is in the ON

remains in the hydraulic circuit after the

position.

operation. Release the residual pressure as

3. Slowly push the operating lever forward to

necessary by using the following steps.

lower the boom.

Perform the residual pressure releasing

within 10 minutes after the engine stopping.

1. Return the throttle lever 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.

2-46

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 5-16 and 5-17.

• 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 5-18 to 5-23.

• 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 for one second

and an alarm is sounded for ten

seconds. The meters also start

functioning. After two seconds, only the

battery charge warning lamp (3), the

engine oil pressure warning lamp (2) and

3. Check that the safety lock lever is in the

the engine emergency lamp (1) start

locked position.

flashing, and the other lamps turn off.

· Press the light switch to check that the

boom light, front light and meter lights

turn on.

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.

AD6D003

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

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. Pull the throttle lever to the middle

position.

1. Pull the throttle lever to the middle

position.

2. Turn the starter key to the ON position,

and confirm that the glow lamp is on. (The

glow lamp stays lit for up to three seconds

when the coolant temperature is 5°C

(41°F).)

3. After the glow lamp goes out, turn the key

to the START position to start the engine.

4. Once the engine starts, release the key.

2. Turn the starter key to the START position

The key automatically returns to the ON

and start the engine.

position.

3. Once the engine starts, release the key.

5. Check that the warning lamps are off.

The key automatically returns to the ON

6. Return the throttle lever and warm up the

position.

engine.

4. Check that the warning lamps are off.

Refer to “Warming up the engine”.

5. Return the throttle lever and warm up the

engine.

Refer to “Warming up the engine” on page

3-5.

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 lever, then run the

1. Return the throttle lever.

engine at a low idle speed with no load for

2. Idle the engine for about 5 minutes to

5 minutes.

gradually let it cool.

3. Turn the starter key to the OFF position to

stop the engine.

3-5

Operation

Operating the machine

Operating the machine

Lever pattern (ISO pattern)

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

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

AD6D008

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

Boom swing right

Dozer blade raise

3-6

Operation

Operating the machine

Lever pattern (G pattern) If equipped

• 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

Boom swing right

Dozer blade raise

Refer to “Selecting a lever pattern” on page 8-5.

3-7

Operation

Operating the machine

Warming up the machine

(hydraulic oil)

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. Pull the throttle lever to the middle

position, then run the engine at medium

speed for about 5 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

Crawler width switching

Operate the machine with the maximum

crawler width

• Always operate the machine with the

crawler width extended to 1300 mm

(51.2 in.) to maximize the machine

stability. If the machine is operated with

the crawler width narrowed (980 mm,

38.6 in.), the machine may tip over due

2. Depress the selector lever.

to its poor stability.

• If the machine must be operated with

the narrowed crawler width (980 mm,

38.6 in.), traveling should be done after

folding the hoe attachment, lowering the

boom to lower the center of gravity and

keeping the machine facing forward.

This machine is able to change the crawler

width. Normally, it is best to operate with the

crawler width extended for machine’s

stability.

3. Push the blade lever forward (B) to

Switching the crawler width

increase the crawler width (1300 mm or

Perform the operation on a flat and rigid

51.2 in.).

ground where no obstacles around.

If necessary, extend the blade width by

changing the plate (2).

Refer to “Switching the blade width” on

page 3-11.

AD6D012

1. Raise the machine body by using the hoe

attachment and the dozer blade.

IMPORTANT: Be sure to raise the machine

4. Pull the blade lever toward you (A) to

body before switching the crawler width.

decrease the crawler width (980 mm or

If the operation is attempted when the

38.6 in.).

crawler is rested on the ground, the travel

frame or span cylinder may be damaged.

3-10

Operation

Operating the machine

Switching the blade width

2

1

AC8D015

1. Loosen bolts (1) and remove plate (2).

2. Attach the right plate (2) to the left, the left

plate (2) to the right.

3. Tighten the plate (2) with bolts (1).

3-11

Operation

Operating the machine

Operating the travel levers

Moving the machine forward and

backward

• 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. Pull the throttle lever 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.

3-12

Operation

Operating the machine

Traveling in 2nd (High) speed

When the dozer blade is in front of the

operator’s seat:

To move forward:

Press the travel speed switch on the right

Tilt the levers forward.

travel lever to switch to 2nd (high) speed,

To move backward:

and press it again to return to 1st (low)

Tilt the levers backward.

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.

3-13

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.

3-14

Operation

Operating the machine

Stopping travel

• 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.

• Note that the dozer blade, boom swing

and auxiliary hydraulic controls cannot

be locked, even when the safety lock

lever is set to the locked position.

Do not carelessly touch these controls.

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.

3-15

Operation

Operating the machine

Operating the working equipment

Slewing

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:

AD6D003

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.

3-16

Operation

Operating the machine

Operating the arm

Operating the boom swing

Arm in:

Boom swing left:

Tilt the left operating lever backward.

Step on the left side of the pedal.

Arm out:

Boom swing right:

Tilt the left operating lever forward.

Step on the right side of the pedal.

Operating the bucket

Operating the dozer blade

Bucket load:

Dozer blade lower:

Tilt the right operating lever to the left.

Tilt the lever forward.

Bucket dump:

Dozer blade raise:

Tilt the right operating lever to the right.

Tilt the lever backward.

3-17

Operation

Operating procedures

Be gentle when using the hydraulic

Operating procedures

cylinder

Prohibited operations

• 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.

3-18

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.

3-19

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 and bucket do not hit the dozer blade.

Do not use the dozer blade as an

Operate with the dozer blade at the rear

outrigger

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.

3-20

Operation

Cautions on operating

Cautions on using machine in water

Cautions on operating

Cautions on traveling

If the rear of the machine is submerged in

water as shown in the figure above, it causes

Traveling over obstacles (rocks, stumps, etc.)

the radiator fan to turn in water, resulting in

may put a great load on the machine body

damage to the fan. The rear of the machine

and may cause damage to it. Avoid crossing

must not be submerged.

over obstacles whenever possible. If you

must do so, keep the hoe attachment near

the ground, travel at a low speed, and go

over the obstacle at the center of the crawler.

1

Cautions on traveling in 2nd (High) speed

AD6D019

• Allowable water depth

Use the machine in water only when the

water is up to the middle of the shoe slide

(1).

• For those parts used in water for a long

time, apply enough grease until the old

• On uneven ground, maintain the low speed

grease is expelled.

and avoid starting, stopping or changing

• Never submerge the slew bearing or main

directions abruptly.

body in water or sand. If submerged,

• When traveling in 2nd speed, do so with

contact a Takeuchi service agent for

the dozer blade at the front.

inspection.

3-21

Operation

Cautions on operating

Cautions on traveling on slopes

• The machine may slip sideways even on

a slight slope if they are covered with

grass or dead leaves, or when traveling

on a wet metal plate or frozen surfaces.

• Never travel on slopes that are too

Do not allow the machine to position

steep for the machine to maintain its

sideways to slopes.

stability. (maximum gradeability: 30°,

lateral tipping angle: 10°) Note that in

reality, the machine’s stability becomes

Traveling posture on slopes

lower than the above values depending

Climbing slopes

on the working condition.

• When traveling on slopes, lower the

bucket to a height of 20 to 30 cm (8 to

12 in.) above the ground. When climbing

a steep slope, extend the hoe

attachment to the front. In emergencies,

lower the bucket to the ground and stop

the machine.

• When traveling on slopes or grades,

drive slowly in 1st (low) speed.

• When climbing a hill, keep the

operator’s seat facing the hillside. When

descending a hill, keep the operator’s

When climbing slopes of 15° or more,

seat facing the downhill direction. In

maintain the machine posture as shown in

either case, travel must be done while

the figure above.

paying attention to the ground in front

of the machine.

Descending slopes

• Do not descend slopes in reverse.

When descending slopes of 15° or more,

• Do not change directions on slopes or

slow down the engine speed and maintain

traverse slopes. First return to a flat

the machine posture as shown in the figure

surface, and then take an alternative

above.

path.

3-22

Operation

Cautions on operating

Braking when descending slopes

If the engine stops

When descending slopes, the brakes are

If the engine stops when descending a

applied automatically once the travel levers

slope, set the travel levers to the neutral

are returned to the neutral position.

position, stop the machine, then start the

engine.

If the crawler slips

Do not open the door while traveling on

slopes

If the crawler slips while climbing a slope and

impossible to travel, use the pulling force of

the arm to climb the slope.

Opening the door while traveling on slopes is

dangerous, as the force required to open

and close the door changes abruptly. Always

keep the door closed when traveling on

slopes.

3-23

Operation

Cautions on operating

Getting out of mud

Operations possible with this

machine

If the machine gets stuck in mud, use the

procedure below to get it out.

Excavating

If one crawler is stuck

1. Set the dozer blade on the side opposite

to the side you want to dig on.

1. Swing the bucket to the side of the

2. Use the arm and bucket and dig with

crawler being stuck.

shallow, long strokes. The maximum

2. Set the arm and boom to an angle of 90

digging force can be obtained when the

to 110°.

boom and arm angle is 80 to 120°. Use

3. Press the bottom of the bucket (not the

this angle for effective digging.

teeth) against the ground.

4. Place a plank or the like under the lifted

Digging ditches

crawler.

5. Lift the bucket and slowly move the

machine out of the mud.

If both crawlers are stuck

Install a bucket suited for digging ditches

and set the crawlers parallel to the ditch to

be dug for greater efficiency.

When digging wide ditches, dig the sides

first, and then dig the center.

1. Perform the steps 1 to 4 above for both

crawlers.

2. Dig the bucket into the ground in front of

the machine.

3. Pull with the arm while traveling forward to

slowly move the machine out.

3-24

Operation

Cautions on operating

Digging side drains

Leveling

Use the boom swing function to dig side

1. Bring the hoe attachment close to the

ditches as shown in the figure.

body.

2. Gradually remove the dirt from the side of

Loading

the mound.

3. Once the mound is low, remove the dirt

from the top. If the load becomes too

heavy for the machine body, adjust by

raising or lowering the dozer blade.

When loading dirt onto a truck bed, load

from the back of the truck, as it is easier and

able to load more load than doing it from the

front.

Also, use a small slewing angle for greater

efficiency.

3-25

Operation

Parking the machine

3. Lower the bucket and the dozer blade to

Parking the machine

the ground.

Parking

4. Raise the safety lock lever to the locked

position.

5. Stop the engine and remove the key.

Refer to “Stopping the engine” on page

3-5.

Inspection and checks after

stopping the engine

1. Check for oil or water leak and inspect the

working equipment, covers and

undercarriage. If any irregularities are

found, repair.

2. Fill up the fuel tank.

• Park the machine on a flat, rigid and

Refer to “Inspecting the fuel level” on page

safe ground. Set the parking brake.

5-20.

3. Remove any paper scraps or dirt from the

engine room.

4. Remove any mud from the undercarriage.

Locking

Be sure to lock the following places:

If you must park on a slope or incline,

park the machine securely and block

the movement of the machine.

• When parking on a street, use barriers,

caution signs, lights, etc., so that the

machine can easily be seen even at

night to avoid collision with other

• Fuel lid

vehicles.

• Cab door

• Before leaving the operator’s seat, raise

• Manual storage compartment

the safety lock lever to engage the lock

• Engine hood

and stop the engine. Also, be sure to

• Covers

remove the key, lock the door and

covers, take it with you and store it in a

specified place.

1. Set the left and right travel levers to the

neutral position.

2. Return the throttle lever to idle the engine

at low speed.

3-26

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