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Takeuchi Hydraulic Excavator TB175W (No. 175400095~). Operator's Manual - page 3

OPERATION

Machine Operation

Stopping Travel

WARNING

When traveling, do not step on the travel

WARNING

pedal for the opposite direction. Doing so

Park the machine on firm, level ground

is dangerous as it causes the machine to

and apply the parking device. If you

stop suddenly.

must park on a slope or incline, block

the machine securely to prevent

movement.

Steering axle

If any controls should be touched

accidentally when the safety lock lever

has not be locked, the machine will

move suddenly, and cause serious injury

or death.

F

R

Note that the dozer blade control is not

W2D016E

locked, even when the safety lock lever

is set to the lock position. Do not touch

When the steering axle is in front of the

this control accidentally.

operator’s seat:

To move forward:

Step on the pedal (F).

CAUTION

To move backward:

Never bring the machine to a sudden stop

Step on the pedal (R).

except in the case of a true emergency.

Stop as gently as possible.

Steering axle

2

1

F

R

W2D017E

When the steering axle is behind the operator’s

W2B027

seat:

1. Slowly step on the brake pedal to stop the

To move forward:

machine.

Step on the pedal (R).

To move backward:

Step on the pedal (F).

80

OPERATION

Machine Operation

Slewing

Operating the Working

Equipment

WARNING

WARNING

Check the surrounding area for safety

before slewing.

Be careful to check which pattern

of lever control arrangement you

are operating with before beginning

operations.

The explanations in this manual are for

the ISO pattern.

W2D019

To slew left:

Tilt the left operating lever to the left.

F R

To slew right:

Tilt the left operating lever to the right.

W2D027

Operating the Boom

Use the right operating lever to operate the

boom and bucket.

Use the left operating lever to operate the arm

and for slewing.

Return the operating levers to the neutral

position to stop the hoe attachments.

1. Push the brake pedal fully down to engage

the pedal lock.

W2D020

2. Disengage the boom swing pedal and

To lower the boom:

blade lever locks.

Tilt the right operating lever forward.

3. Press the axle lock switch down to engage

To raise the boom:

the axle lock.

Tilt the right operating lever backward.

4. Lower the dozer blade to the ground.

5. Set the safety lock lever to the released

position.

81

OPERATION

Machine Operation

Operating the Arm

Operating the Intermediate Boom

W2D021

W2D024

To contract the arm:

To raise the intermediate boom:

Tilt the left operating lever backward.

Press the selector switch and step on the

To extend the arm:

left side of the pedal.

Tilt the left operating lever forward.

To lower the intermediate boom:

Press the selector switch and step on the

Operating the Bucket

right side of the pedal.

Operating the Dozer Blade

W2D022

To dig:

W2D025

Tilt the right operating lever to the left.

To dump:

To lower the dozer blade:

Tilt the right operating lever to the right.

Tilt the lever forward.

To raise the dozer blade:

Operating the Boom Swing

Tilt the lever backward.

W2D023

To swing left:

Press the left side of the pedal.

To swing right:

Press the right side of the pedal.

82

OPERATION

Machine Operation

Operating With the Auxiliary Hydraulic

Operating the First Auxiliary

Buttons

Hydraulics

Use this to operate a breaker, crusher or other

attachment.

Two methods of operation are permitted:

operation with the auxiliary hydraulic buttons

and operation with the auxiliary hydraulic

(proportional control) switch.

S

O

To deliver hydraulic oil to port (a):

Press (A’).

b

a

W2C005

Operating With the Auxiliary Hydraulic

Switch (Proportional Control)

A

B

W2B018

To deliver hydraulic oil to port (a):

Move the switch to the left (A).

To deliver hydraulic oil to port (b):

Move the switch to the right (B).

83

OPERATION

Operating Procedures

Be Gentle on the Hydraulic Cylinders

Prohibited Operations

WARNING

Do not operate on base rock (hard or

soft).

Do not slew (swing) while traveling. If

you must operate the hoe attachment

while traveling, operate at speeds slow

W2E003

enough so you have complete control

at all times.

Do not extend the hydraulic cylinders to the

stroke ends. Operate them with leeway.

Do not perform breaking or leveling

operations using slew force

W2E004

W2E001

Do not support the machine body with

Do not break down walls or level ground using

the hoe attachment as it is lowering with

slew force. Also, do not dig the bucket teeth

the arm cylinder fully extended. Doing so

into the ground during slewing. Doing so will

concentrates the load on the arm cylinder

damage the hoe attachment.

and could damage the arm cylinder.

Do not Dig while Traveling

Do not Drive Piles with the Bucket or Dig

with it Using Shock Force

W2E002

W2E005

Do not dig the bucket into the ground and

use the traveling force to dig.

Doing so will shorten the service life of the hoe

attachment. Use hydraulic force to dig.

84

OPERATION

Operating Procedures

Do not Perform Operations Using the

Caution on Exposing the Dozer Blade to

Machine’s Dropping Force

Shocks

W2E008

Hitting the dozer blade against rocks, etc.,

could damage the dozer blade or the blade

cylinder.

Caution on Folding the Hoe Attachment

W2E006

Putting excessive strain on the machine will

shorten its service life. Use the hydraulic force

of the cylinders and always dig with shallow,

long strokes.

W2E009

Digging Base Rock

Be careful not to hit the bucket or dozer blade

when folding the hoe attachment.

Support the Dozer Blade on Both Sides

W2E007

For hard base rock, break the rock up into

small pieces with a breaker, etc., before

W2E010

digging. This prevents damage to the

machine and is thus more economical in

When using the dozer blade as an outrigger,

the end.

do not support it on one side only.

85

OPERATION

Operating Procedures

Pay Attention to the Dozer Blade when

Cautions on Operating

Digging

Cautions on Traveling

W2E0111

W2A007

When digging deeply with the dozer blade

positioned at the front, be careful that the

Traveling over obstacles (rocks, stumps,

boom cylinder and bucket do not hit the

etc.) may subject the body to strong shocks

dozer blade.

and result in damage. Avoid traveling over

Operate with the dozer blade at the rear

obstacles whenever possible. If you must do

whenever possible.

so, keep the hoe attachment near the ground,

travel at low speed, and go over the obstacle

Caution on Digging Down with the Dozer

at the center of the tire.

Blade

Cautions on Traveling in High Speed

W2E014

This dozer blade is designed for simple earth

pushing. Do not dig down deeply with the

On uneven ground, travel at low speed and

dozer blade. Doing so could damage the

avoid accelerating, stopping or changing

dozer blade and lower body.

directions abruptly.

When traveling in high speed, do so with

the steering axle at the front.

86

OPERATION

Operating Procedures

Travel Posture on a job site

Cautions on Traveling on Slopes

Traveling up slopes

WARNING

Climbing

Never exceed the machine’s stability

90°~110°

capabilities (maximum gradeability

20~30cm

- 35°, lateral tipping angle - 15°). Also

(8 to 12 in)

note that when actual working area

conditions are poor the machine’s

stability capabilities may be lower.

W2A010

When traveling on slopes or grades,

lower the bucket to a height of 20 to

When traveling up slopes at an angle of 15°

30 cm (8 to 12 in.) off the ground. In

or greater, travel in the posture shown in the

emergencies, lower the bucket to the

diagram above.

ground and stop the machine.

When traveling on slopes or grades,

Traveling down slopes

move slowly in site travel gear.

Do not travel at speeds of over 20

km/h (12.4 mph) on long down slopes.

90°~110°

Release the travel pedal from time to

time to protect the travel motor and

ensure travel stability.

Descending

Do not travel down slopes in reverse.

20~30cm (8 to 12 in)

W2A009

When traveling down slopes at an angle of

15° or greater, change into the site travel gear

and lower the engine speed and travel in the

posture shown in the diagram above.

W2A011

Do not change directions or cross

slopes sideways. First return to a flat

surface then redirect the machine.

On grass, dead leaves, wet metal or

frozen surfaces, the machine may slide

sideways even on very gentle slopes.

Make sure the machine never faces

sideways with respect to the slope.

87

OPERATION

Operating Procedures

Braking when traveling down slopes

Do not open the door while traveling on

slopes

Braking

W2E017

W2E020

When traveling down slopes, apply the brake

earlier than you normally would.

Opening the door while traveling on slopes

is dangerous, as the force required to open

If the tires slip

and close the door changes abruptly. Always

keep the door closed when traveling on

Climbing

slopes.

W2E018

If the tires slip while traveling up a slope,

use the pulling force of the arm to climb the

slope.

If the engine stops

Descending

W2E019

If the engine stops when traveling down a

slope, step on the brake pedal to stop the

machine, then set the bucket against the

ground and start the engine.

88

OPERATION

Operating Procedures

Getting Out of Mud

If the machine gets stuck in mud, use the

procedure below to get it out.

If tires on one side are stuck

W2E021

1. Slew the bucket to the side which is

stuck.

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

110°.

3. Press the bottom of the bucket (not the

teeth) against the ground.

4. Place a plank, etc., under the lifted tires.

5. Raise the bucket and slowly move out of

the mud.

If all tires are stuck

1. Perform steps 1 to 4 above for both tires.

2. Dig the bucket into the ground in front of

the machine.

3. Pull with the arm and travel forward

simultaneously to slowly move out of the

mud.

W2E022

89

OPERATION

Operating Procedures

Digging Ditches

Operations Possible with this

Machine

Excavating

2-Piece Boom

W2E024

Mount a bucket suited for digging ditches and

set the tires parallel to the ditch to be dug for

greater efficiency.

When digging wide ditches, dig the sides first,

the center later.

Mono-Boom

Digging Side Ditches

W2E025

1. Set the dozer blade on the side opposite

the side you want to dig on and dig it

Use the boom swing function to dig side

slightly into the ground.

ditches as shown in the diagram.

2. Use the arm and bucket and dig with

shallow, long strokes. The digging force is

Loading

strongest when the boom and arm angle

is 80 to 120°. Use this angle for effective

digging.

W2A026

When loading dirt in a truck, starting from

the back of the truck’s bed makes for easier

loading and increases the amount of dirt that

can be loaded.

Also, use a small slewing angle for greater

efficiency.

90

OPERATION

Operating Procedures

Leveling

1. Bring the hoe attachment close to the

body.

2. Gradually remove the dirt from the side of

the mound.

3. Once the mound is low, remove the dirt

from the top. If the load on the body is

too heavy, adjust by raising or lowering the

dozer blade.

91

OPERATION

Parking the Machine

Releasing the residual pressure from the

Parking

working equipment circuitry

1. Stop the engine.

WARNING

2. Turn the starter switch to the ON

position.

3. Fully lower the safety lock lever.

4. Within 10 minutes after the engine comes to

a complete stop, move all the control levers

Block

and pedals several times in all directions

to release the residual pressure.

Dig in

W2A023

Park the machine on firm, level ground

Inspection and Checks After

and apply the parking device. If you

Stopping the Engine

must park on a slope or incline, block

1. Check for oil and water leakage and

the machine securely to prevent

inspect the working equipment, covers

movement.

and undercarriage. If any irregularities are

Before leaving the operator’s seat, set

found, repair.

the locking devices securely to the lock

2. Fill the fuel tank.

position and stop the engine. If any

Refer to page 118 “Inspecting the Fuel

controls should be touched accidentally

Level”.

when the locking devices have not be

3. Remove any paper scraps or dirt from the

locked, the machine will move suddenly,

engine room.

and cause serious injury or death.

4. R e m o v e a n y m u d f r o m t h e

undercarriage.

1. Slowly step on the brake pedal to stop the

machine.

Locking

2. Press the decel. button and idle the engine

Be sure to lock the following places:

at low speed.

3. Lower the bucket and dozer blade to the

ground.

4. Set the safety lock lever to the lock

position.

5. Lock the blade lever and boom swing

pedal.

6. Stop the engine and remove the key.

Refer to page 73 “Stopping the Engine”.

Cab door

Fuel filler cap

Covers

92

OPERATION

Handling Tires

Tires have an inherent weakness due to their

use of rubber. Be sure to heed the prohibitions

and cautions below so as to prevent damage

to the tires.

Prohibited Actions

Do not travel or operate the machine in the

W2E029

following places:

Do not let fuel, oil, salt or chemical solvents

get on the tires. These substances may

corrode the tires and wheels, resulting in

rust or peeling. If these substances should

get on the tires, wipe them off immediately

using water.

W2E027

Traveling or slewing on broken stone,

jagged base rock, iron rods, iron scraps

or the edges of iron sheets may damage

or cut the tires.

Traveling on roads directly after asphalting

or on hot surfaces such as over fires or

on iron sheets under strong sunlight may

result in irregular wear or damage of the

tread.

Do not move earth in places where the tires

may slip. Doing so may speed up tread

W2E028

wear.

Traveling on riverbeds or places with many

soft rocks may damage the tires.

Do not use on the seashore. The salt may

corrode the metal wheels.

94

OPERATION

Handling Tires

Cautions

Heed the following cautions when operating

the machine:

Avoid changing course abruptly and

spinning on concrete surfaces whenever

possible.

Doing so may wear or damage the tires.

Avoid drops that may expose the tires to

strong shocks.

Salt, potassium chloride, ammonium

sulfate, potassium sulfate, and triple

superphosphate of lime can damage the

tires. If any of these substances should get

on the tires, wash them off thoroughly with

water.

Do not let the sides of the tires tread against

concrete or walls.

Do not damage the tires by hitting the

bucket against them.

Be especially careful in the winter on

snowy or frozen surfaces as the tires tend

to slip.

When storing the tires for long periods of

time (3 months or more), do so indoors in

a place not exposed to direct sunlight or

rain.

W2E031

Tires are not stable. Be very careful when

slewing and swinging sideways.

95

TRANSPORT

Loading and Unloading

1. Apply the trailer’s parking brake and place

WARNING

stoppers against its tires.

The machine may roll or tip over or fall

2. Fasten the ramps securely to the trailer

while loading or unloading it. Take the

bed so that they will not come off. Set the

following precautions:

ramps to an angle of 15° or less.

Select a firm, level surface and keep

3. Line up the center of the trailer bed with

sufficient distance from road shoulders.

the center of the machine and the center

Use loading ramps of adequate strength

of the ramps with the center of the tires.

and size. Maintain the slope of loading

4. Make sure the dozer blade does not hit the

ramps within 15 degrees.ɹIf the rumps

ramps.

are bowed down too low, support them

5. Lower the hoe attachment as much as

with poles or blocks.

possible, making sure it will not hit the

Secure the ramps to the trailer deck.

trailer.

Keep the trailer deck and loading ramps

6. Lower the engine speed.

clean of oil, clay, ice, snow, and other

materials which can become slippery.

Clean the machine tires.

Block the trailer so it can not move.

Use a signal person when loading and

unloading the machine, and travel

slowly in site travel gear.

Never change course on the ramp.

Do not slew (swing) on ramps. The

W2F002

machine may tip over.

When slewing (swinging) on the trailer

deck, do so slowly as the footing can be

unstable.

Engage the slew (swing) lock after

loading.

Block the machine tires and secure the

machine to the trailer deck with load

binders.

W2F003

When loading or unloading the machine,

7. Determine the direction on the ramps, then

be sure to use ramps and following the

slowly travel up or down the ramps in site

procedure below.

travel gear (low range), following the signals

of a flagman.

Trailer

8. Load the machine properly at the prescribed

Ramp

position on the bed.

Refer to page 99 “Transporting Posture”.

15° or less

Stopper

W2F001E

98

TRANSPORT

Securing the Machine

After loading the machine in the designated

position, secure it as described below.

Transporting Posture

W2F004

1. Lower the dozer blade.

2. Fully extend the bucket and arm cylinders,

then lower the boom.

3. Stop the engine and remove the starter

key.

4. Set the safety lock lever securely to the

locked position.

5. Engage the swing lock.

6. Set stoppers in front and behind the tires.

7. Put a chain or wire rope over the lower

frame and fasten it securely to prevent

sideways slippage.

8. Secure the bucket with a chain or wire

rope.

99

TRANSPORT

Hoisting the Machine

2-Piece Boom

Mono-Boom

101

TRANSPORT

Cautions on Transporting

Road Travel Posture

WARNING

2-Piece Boom

Know and follow the safety rules, vehicle

code and traffic laws when transporting

the machine.

Consider the length, width, height and

weight of the truck and trailer with the

machine loaded on it when determining

the best route.

CAUTION

If the machine is to be transported

complete, by sea, for example, the special

3500mm / 137.8 in.

tie bar provided by the manufacturer is to

W2F006

be used.

For enquiries, contact the manufacturer.

Mono-Boom

Dimensions for transportation by low

loader and rail

For rail transport, the machine is to be carried

on a suitable type of wagon.

Information of loading procedures is available

from the relvant rail authorities.

For road or rail transport, the upperstructure

must be locked in position using the

mechanism located near the operator’s seat

in order to prevent slewing; the slewing brake

must be on; and the wheels must be chocked.

Any attached equipment is to rest on the floor

of the transporter.

102

MAINTENANCE

General

Do not clean parts with fuel

Disposing of wastes

Do not use fuel to clean parts. Use a non-

Collect spent fluids from the machine

combustible cleaning agent.

in containers. Disposing of wastes

irresponsibly damages the environment.

Keep dirt out

Dispose of oil, fuel, cooling water, coolant,

When mounting and removing parts, do so

filters, batteries and other harmful

in a place where there is no dust, clean the

substances as prescribed by law.

working area and the part, and keep dirt

out.

Check after maintenance

Gradually increase the engine speed from

Clean mounting surfaces

a low idle to maximum speed and check

When mounting and removing parts, be sure

that there is no oil or water leaking from

that the surfaces of contact of the parts are

serviced parts.

clean. If the sealing grooves of the surface

Operate all the operating levers and check

of contact are damaged, consult a Takeuchi

that the machine is operating properly.

sales or service outlet.

Cautions on handling of battery cables

Seals and split pins

Disconnect the battery cables (+,-) before

Replace removed seals and split pins with

working on the electrical system or doing

new ones.

any welding.

When mounting, be careful not to damage

Remove the negative (-) battery cable

or twist the seal.

first.

When reconnecting the battery, connect

Sealing tape

the negative (-) battery cable last.

Do not disconnect the battery cables while

Sealing tape

the engine is running. Doing so could

damage the electronic circuitry of the

alternator and other parts.

Do not let the wheels spin

Do not let the wheels spin when the

Leave 1 or 2 threads free

undercarriage is raised. Doing so may

E4G001

damage the differential gears.

When wrapping sealing tape around plugs,

etc., remove any old sealing tape from the

threads and clean the threads.

Wrap the sealing tape tight, leaving 1 or 2

threads at the tip free.

105

MAINTENANCE

Service Data

Fuel and Lubricant Chart

Use different fuels, lubricants and greases according to the temperature, referring to the chart

below.

Change the lubricant earlier than as shown in the table if it is extremely dirty or its performance

has deteriorated severely.

Whenever possible, use the same brand of lubricant as before. If changing with a different

brand, replace the entire quantity - do not mix different brands.

Type by temperature

Replacement

Capacity

Part

Type

-22

-4

14

32

50

68

86

104 °F

interval

Lit. (US. qt.)

-30 -20 -10

0

10

20

30

40 °C

Upper limit:

Diesel

Engine

After first 50 hrs.

10.2

(10.8)

SAE 10W-30

engine oil

oil pan

Every 250 hrs.

SAE 15W-40

API-CF

Lower limit:

5.7 (6)

System:

ISO VG32

135

Hydraulic

Antiwear

Every 2000

(35.7 US.gal.)

ISO VG46

tank

hydraulic oil

hrs.

ISO VG68

Tank:

68 (18 US.gal.)

Engine

Cooling

50% coolant mixture

cooling

water (water

Every 1000 hrs.

12.0

(12.7)

30% coolant mixture

system

+ coolant) *

Hub

1.0

(1.1)

SAE 85W 90

Gear oil

Every 1500 hrs.

1.3

(1.38)

Transmission

With additives for oil-bath

API-GL-4

brakes

Differential

8.5 (2.25 US.gal.)

Undercarriage

Every 250 hrs.

Lithium

Slew bearing

based

Every 50 hrs.

As

grease

Working

Daily or every

required

equipment

EP-2

10 hrs.

NLGI No. 2

Levers

When required

*

: For water, use tap water (soft). Do not use well or river water.

When the ambient temperature drops below 0°C, add coolant (antifreeze). Follow the

coolant manufacturer’s instructions to determine the mixture ratio.

106

MAINTENANCE

Service Data

Fuel

Diesel Fuel Specifications

Diesel fuel should comply with the following specifications. The table lists several worldwide

specifications for diesel fuels.

Diesel Fuel Specification

Location

Diesel Fuel Specification

Location

ASTM D975

No. 1D S15

USA

ISO 8217 DMX

International

No. 2D S15

EN590:96

European Union BS 2869-A1 or A2

United Kingdom

Capacity

Part

Type

Lit. (US. gal.)

To maintain the performance and service life of the

engine, always use clean and high-quality fuel.

To avoid freezing in cold climates, use a diesel

fuel that still functions when the temperature is

at least 12°C below the lowest expected ambient

temperature.

Use a diesel fuel that has a cetane number of 45 or

higher. When operating at a very low temperature

or at a high altitude, a higher cetane number fuel

will be required.

120 (31.7)

Fuel tank

Diesel fuel

Use fuel with sulfur content of less than 0.05 to

0.0015% by volume. Especially in the U.S.A. and

Canada, ultra-low sulfur fuel should be used.

A higher sulfur content fuel may cause sulfuric

acid corrosion in the cylinders of the engines.

Never mix kerosene, used engine oil, or residual

fuels with the diesel fuel.

Poor quality fuel can reduce engine performance

and / or cause engine damage.

Fuel additives are not recommended. Some fuel

additives may cause poor engine performance.

107

MAINTENANCE

Service Data

Expendables

Replace expendables such as filters and elements periodically, referring to the table below.

Item

Part name

Part No.

Replacement interval

Hydraulic oil return

1551102600

After first 50 hrs.

filter

Element

Every 500 hrs.

1551200601

Pilot line filter

Fuel filter

Cartridge

Y129907-55801

Every 500 hrs.

Water separator filter

Cartridge

Y129917-55850

Engine oil filter

Cartridge

Y129150-35153

After first 50 hrs.

Every 250 hrs.

Air cleaner

Outer Element

Y129948-12621

Every 1000 hrs. or after 6

cleanings

(whichever comes first)

Inner Element

Y129948-12630

Every 1000 hrs. or after 3

cleanings of the outer element

(whichever comes first)

Air breather filter

Element

1552002715

Every 1000 hrs.

108

MAINTENANCE

Service Data

Tools

No.

Part name

Part No.

Remarks

No.

Part name

Part No.

Remarks

1

Spanner

1910047081

10-12

13

Spanner

1690100041

41

2

Spanner

1910047082

14-17

14

Hex. wrench

1690600250

2.5mm

3

Screwdriver

1910006112

(+) (-)

15

Hex. wrench

1690600500

5mm

4

Filter wrench

1910065081

16

Hex. wrench

1690600600

6mm

5

Hammer

1690300330

3/4

17

Hex. wrench

1690600800

8mm

6

Monkey wrench

1690400250

250mm

18

Hex. wrench

1690601000

10mm

7

Pliers

1690500200

200mm

19

Hex. wrench

1690601200

12mm

8

Spanner

1690001013

10-13

20

Tool case

1691400001

9

Spanner

1690001922

19-22

21

Case

1691900001

10

Spanner

1690002427

24-27

22

Grease gun

1691060600

600cc

11

Spanner

1690002730

27-30

23

Drain connector

1554512601

12

Spanner

1690003236

32-36

109

MAINTENANCE

Service Data

Tightening Torques

Nuts and Bolts (for ISO strength category 10.9)

Tighten nuts and bolts at the torques shown on the table below, unless otherwise specified

in the text.

Tightening torques when mounting plastic covers differ from the values on the table below.

Consult a Takeuchi sales or service outlet. Tightening too strongly will break the cover.

When replacing nuts and bolts, replace them with nuts and bolts of the same size and

standards.

Tighten nuts and bolts alternately (top, bottom, left then right) or in 2 or 3 times so that they

are tightened uniformly.

1

3

6

5

4

2

E4G003

Torque

Head width

Size (a) X Pitch

Thread

(b)

General Connection Points

mm

mm

N·m

ft-lb

10

M6 X 1.0

9.8 ± 0.5

7.2 ± 0.4

12, 13

M8 X 1.25

22.6 ± 1.1

16.6 ± 0.8

14, 17

M10 X 1.5

47.1 ± 2.4

34.7 ± 1.7

Coarse

17, 19

M12 X 1.75

83.4 ± 4.1

61.5 ± 3.0

19, 22

M14 X 2.0

134.4 ± 6.7

99.1 ± 4.9

22, 24

M16 X 2.0

207.9 ± 10.4

153.3 ± 7.7

27, 30

M20 X 2.5

410.9 ± 20.5

303.1 ± 15.1

12, 13

M8 X 1.0

24.5 ± 1.2

18.1 ± 0.9

14, 17

M10 X 1.25

50 ± 2.5

36.9 ± 1.8

17, 19

M12 X 1.5

87.3 ± 4.3

64.4 ± 3.2

Fine

19, 22

M14 X 1.5

135.3 ± 6.8

99.8 ± 5.0

22, 24

M16 X 1.5

220.6 ± 11

162.7 ± 8.1

27, 30

M20 X 1.5

452.1 ± 22.6

333.4 ± 16.6

110

MAINTENANCE

Important Parts

For safe use, the machine must be serviced periodically. To increase safety, periodically replace

the parts listed in the following table of important parts.

Serious injury or a fire could result if they deteriorate or are damaged.

Table of Important Parts

Unit

Important parts to be replaced periodically

Replacement Interval

Fuel hoses

Fuel system

Packing in fuel filler cap

Engine connection

Engine oil filter hoses

Heater hoses

Heater & AC systems

Air conditioner hoses

Hydraulic hoses ( Pump - delivery )

Hydraulic hoses ( Pump - suction )

Machine

body

Hydraulic hoses ( Slew motor )

Hydraulic hoses ( Travel motor )

Every 2 years

Hydraulic hoses ( Boom cylinder lines )

Hydraulic hoses ( Boom adjustment cylinder lines )

Hydraulic

Hydraulic hoses ( Arm cylinder lines)

system

Hydraulic hoses ( Bucket cylinder lines )

Working

Hydraulic hoses ( Swing cylinder )

equipment

Hydraulic hoses ( Blade cylinder )

Hydraulic hoses ( Axle lock cylinder )

Hydraulic hoses ( Pilot valve )

Hydraulic hoses ( Auxiliary lines )

Seat belt

Every 3 years

Above important parts are vulnerable to aging and wear or deterioration and it is difficult to

determine the degree to which they have deteriorated on the occasion of periodic service. To

maintain their proper function at all times, therefore, replace them with new ones after using

them for a specific period of time even if no abnormality is found with the parts. If you find

abnormalities in these parts before their scheduled replacement time is reached, repair or replace

them immediately. If a hose clamp is deformed or cracked, replace it immediately.

When replacing the important parts, please contact a Takeuchi sales or service outlet .

Also check the hydraulic hoses other than the above important parts. If any abnormality is

found in them, retighten them or replace them immediately.

When replacing the hydraulic hoses, replace the O-rings and seals at the same time.

Check the fuel and hydraulic hoses according to the periodic schedule described below.

Refer to “Maintenance”.

Type of inspection

Inspection item

Daily inspection

Leakages from joints, hydraulic or fuel hoses.

Monthly inspection

Leakages from joints, hydraulic or fuel hoses.

Damaged hydraulic or fuel hoses(cracks, wear and tear).

Annual inspection

Leakages from joints, hydraulic or fuel hoses.

Deteriorated, twisted, damaged hydraulic or fuel hoses (cracks, wear

and tear) or hoses in contact with other parts of the machine.

111

MAINTENANCE

Maintenance Chart

Maintenance Items

See page

Walk-Around Inspection

Inspecting by opening the engine hood and covers

114

Inspecting by walking around the machine

115

Inspecting while sitting in the operator’s seat

115

Daily Inspection (Every 10 Hours)

Inspecting and replenishing the coolant

116

Inspecting and replenishing the engine oil

117

Inspecting the water separator

117

Inspecting the fuel level

118

Cleaning the dust screen

118

Inspecting the hydraulic oil level and replenishing

118

Lubricating the working equipment

120

Inspecting and inflating the tires

121

After First 50 Hours (New Machines Only)

Replacing the hydraulic oil return filter

123

Replacing the engine oil and oil filter

124

Inspecting and adjusting the fan belt

125

Replacing the pilot line filter

126

Every 50 Hours

Lubricating the slew bearing

127

Inspecting the battery fluid level and replenishing

128

Draining the fuel tank

129

Every 250 Hours

Lubricating the undercarriage

130

Cleaning the air cleaner

131

Cleaning the radiator fins and oil cooler fins

132

Replacing the engine oil and oil filter

132

Inspecting and adjusting the fan belt

132

Every 400 Hours

Inspecting the transmission gear oil

133

Inspecting the differential gear oil

133

Inspecting the hub gear oil

134

112

MAINTENANCE

Maintenance Chart

Maintenance Items

See page

Every 500 Hours

Replacing the fuel filter

135

Replacing the water separator filter

135

Replacing the hydraulic oil return filter

136

Replacing the pilot line filter

136

Every 1000 Hours

Cleaning the engine cooling system

137

Replacing the air cleaner elements

138

Replacing the air breather filter

139

Inspecting and adjusting the engine valve clearance

139

Retightening the engine cylinder head bolts

139

Every 1500 Hours

Replacing the transmission gear oil

140

Replacing the differential gear oil

140

Replacing the hub gear oil

141

Inspecting and cleaning the engine fuel injectors

141

Inspecting the turbocharger (Blower wash as necessary)

141

Inspecting and cleaning the EGR valve, lead valve and cooler

141

Inspecting the crankcase breather system

141

Every 2000 Hours

Lapping the engine valve seats

142

Replacing the hydraulic oil and cleaning the suction strainer

143

When Required

Replacing the bucket teeth and the side cutters

145

Adjusting the gap between the bucket and arm

147

Inspecting and replenishing the windshield washer fluid

148

Draining the water separator

148

Replacing the bucket

149

Lubricating the levers

151

113

MAINTENANCE

Walk-Around Inspection

Perform the following inspections once every day before starting the engine the first time.

WARNING

Before operating, perform the walk-around inspections and make repairs immediately

should any irregularities be found.

Be sure to secure the engine hood or cover when opening it. Do not open the engine

hood or cover on slopes or in strong wind.

Before starting the engine, look around the machine and lower body, clean any combustible

materials off high temperature parts of the engine, and inspect for such irregularities as oil

leakage, water leakage and looseness of nuts and bolts.

2. Check for oil or engine coolant water

Inspecting by Opening the Engine

leakage around the engine.

Hood and Covers

3. Check for oil leakage from the hydraulic

1. Check for any twigs, leaves, oil or other

tank, hydraulic devices, hoses and

combustible materials around the engine

connections.

and battery.

114

MAINTENANCE

Daily Inspection (Every 10 Hours)

Perform the following inspections once every day before starting the engine the first time.

WARNING

Before operating, perform the Daily inspections and make repairs immediately should

any irregularities be found.

Be sure to secure the engine hood or cover when opening it. Do not open the engine

hood or cover on slopes or in strong wind.

Replenishing

Inspecting and Replenishing the

1. Remove the reserve tank’s cap (2).

Coolant

2. Add coolant up to the upper limit (H) of the

reserve tank (1).

WARNING

If the reserve tank is empty, inspect for

Do not remove the radiator cap or drain

fluid leakage, then inspect the radiator (3)

plugs when the coolant is hot. Stop the

coolant level. If it is low, add water to the

engine, let the engine and radiator cool

radiator (3) first, then to the reserve tank.

and loosen the radiator cap or drain plugs

3. Install the cap (2).

slowly.

Inspection

3

2

1

FULL

H

LOW

L

W3G010

1. Open the engine hood and left side

cover.

2. Inspect the quantity of coolant in the

reserve tank (1).

The level should be between the upper limit

(H) and lower limit (L).

If it is below the lower limit (L), replenish.

116

MAINTENANCE

Daily Inspection (Every 10 Hours)

Inspecting and Replenishing the

Inspecting the Water Separator

Engine Oil

WARNING

5

Stop the engine and allow the machine to

cool down before performing inspection

and maintenance.

Never jump off the machine. Use the

steps and handrails when climbing on

W3G0201

and off the machine, and always support

1. Turn the starter switch to the ON

your body at three points with your

position.

hands and feet.

2. Inspect the water separator warning lamp

(5).

Inspection

3. If an alarm is sounded or a warning lamp

starts flashing, drain the water.

Refer to page 148 “Draining the Water

Separator”.

1. Open the engine hood.

2. Pull out the dipstick (1) and wipe off the oil

with a rag.

3. Fully reinsert the dipstick (1), then pull it

back out.

4. Check the oil on the dipstick (1).

The level should be between the upper limit

(H) and lower limit (L).

If it is below the lower limit (L), replenish.

Replenishing

1. Remove the oil supply cap (2).

2. Add oil up to the upper limit (H) of the

dipstick (1).

Problems could arise if the oil level is either

too low or too high.

3. Tighten the oil supply cap (2).

4. Start the engine, run it at low idle for about

3 minutes, then stop it.

5. After about 10 minutes, inspect the oil

level.

117

MAINTENANCE

Daily Inspection (Every 10 Hours)

Inspecting the Fuel Level

Cleaning the Dust Screen

WARNING

1

Never jump off the machine. Use the

steps and handrails when climbing on

and off the machine, and always support

your body at three points with your

hands and feet.

Do not smoke or permit open

N2G024

flames while fueling or near fueling

1. Open the engine hood.

operations.

2. Inspect if any dirt or bugs are on the dust

Stop the engine in a well-ventilated

screen (1).

place when adding fuel.

3. The dust screen (1) is divided into three

Clean up spilled fuel immediately.

sections: upper, middle and lower. Remove

Do not fill the fuel tank to capacity. Allow

them starting with the upper one and work

room for expansion.

downward.

Tighten the fuel filler cap securely.

4. Lift each section of the dust screen (1)

straight upward and pull it toward you to

remove and clean.

Inspecting the Hydraulic Oil Level

1. Check the fuel level using the fuel gauge

and Replenishing

(1).

F: full

WARNING

E: empty

Never jump off the machine. Use the

2. If the level is low, add fuel from the fuel port

steps and handrails when climbing on

(2) while watching the fuel gauge (1).

and off the machine, and always support

Refer to page 45 “Fuel Filler Cap”.

your body at three points with your

hands and feet.

Oil may spurt out if caps or filters are

removed or pipes disconnected before

releasing the pressure in the hydraulic

system.

• Gradually press the air breather button

to relieve tank pressure.

118

MAINTENANCE

Daily Inspection (Every 10 Hours)

Inspection

Replenishing

The oil level changes according to the oil

temperature. Inspect the oil level in the

4

hydraulic oil level inspection posture shown

10

1

in the diagram.

5

Hydraulic oil level inspection posture

8

9

6

H

L

6

W2G0041

1. Start the engine and run it at low speed.

2. Fully retract the bucket, arm and boom

7

L7G020

adjustment cylinders and ground the

bucket.

1. Press button (1) and bleed the air from the

3. Ground the dozer blade, then stop the

tank.

engine.

2. Remove the plug (10).

4. Inspect the oil level using the sight gauge

3. Add hydraulic oil up to the middle of the

(6).

sight gauge (6).

When the oil temperature is about 20°C

4. Tighten the plug (10).

(68°F):

The level should be halfway between the

upper limit (H) and lower limit (L).

If it is below the lower limit (L), replenish.

When the oil temperature is about 50 to

80°C (122 to 176°F):

The level should be near the upper limit

(H).

119

MAINTENANCE

Daily Inspection (Every 10 Hours)

Lubricating the Working Equipment

1. Set the machine to the lubrication posture shown in the diagram above, ground the working

equipment, then stop the engine.

2. Use the grease gun to lubricate the grease nipples.

3. Wipe off the expelled grease.

120

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