Content .. 1 2 3 ..

Takeuchi compact excavator TB125, TB135, TB145 / diesel TNE / diesel Yanmar. Service Manual - page 2

GENERAL

I-12

TB125, 135, 145

HANDLING OF SEALS

1. Clean the grooves for O-rings and if there is any

ridge, etc., remove it.

2. Be careful not to twist O-rings. If an O-ring is

twisted, remove the twist with the fingertips.

3. During insertion, be careful not to damage the

seal.

4. Handling of Floating Seals

• Wipe all oil off the O-ring and housing of the

floating seal.

• When assembling, apply a thin coating of gear

oil to the contact surface of the housing.

• After assembly, turn the seal 2 or 3 times to get

it to fit snugly.

5. Apply grease to the lip of the oil seal.

• This is to prevent wear when it is first started up

after assembly.

RIDGE

DIRT

GREASE

GENERAL

I-13

TB125, 135, 145

TIGHTENING TORQUES

Hydraulic Hoses

Bite Type Pipe Fitting for Steel Pipe

1/8

1/4

3/8

1/2

3/4

Hose Fitting Size

Torque

Union Nut (G)

Taper Thread (R)

N·m

ft-lb

N·m

ft-lb

11.8

1.2

29.4

2.9

53.9

5.4

88.3

8.8

147.1

14.7

196.1

19.6

8.7

0.8

21.7

2.1

39.8

3.9

65.1

6.4

108.5

10.7

144.7

14.3

9.8

+4.9

24.5

+4.9

58.8

+4.9

117.7

+4.9

137.3

+4.9

7.3

+3.5

18.1

+3.5

36.2

+3.5

43.4

+3.5

86.8

+3.5

101.3

+3.5

27.2

Pipe Outer Diameter

(mm)

Torque

N·m

ft-lb

34.3

4.9

41.7

2.5

58.8

4.9

88.3

4.9

93.2

4.9

132.4

4.9

205.9

9.8

245.2

9.8

313.8

19.6

313.8

19.6

411.9

19.6

25.3

3.5

30.7

1.7

43.4

3.5

65.1

3.5

68.7

3.5

97.6

3.5

151.8

7.2

181.0

7.2

231.4

14.3

231.4

14.3

303.7

14.3

UNION NUT

TAPER THREAD

GENERAL

I-14

TB125, 135, 145

Joints for Piping

Joints for Piping (O-ring Seal Type)

1/8

1/4

3/8

1/2

3/4

Nominal Thread

Diameter

(R)

Torque

Steel

Cast Steel

N·m

ft-lb

N·m

ft-lb

11.8

1.2

29.4

2.9

53.9

5.4

88.3

8.8

147.1

14.7

196.1

19.2

8.7

0.8

21.7

2.1

39.8

3.9

65.1

6.4

108.5

10.7

144.7

14.3

10.8

1.1

24.5

2.5

4.9

73.5

7.4

127.5

12.7

171.6

17.2

8.0

0.7

18.1

1.7

36.2

3.5

54.3

5.3

94.1

9.3

126.6

12.5

Nominal Thread

Diameter

(G)

Torque

N·m

ft-lb

1/8

1/4

3/8

1/2

3/4

1-1/4

1-1/2

19.6

2.0

34.3

4.9

53.9

4.9

63.7

4.9

93.2

4.9

107.9

9.8

117.7

9.8

137.3

9.8

14.5

1.4

25.3

3.5

39.8

3.5

47.0

3.5

68.7

3.5

79.5

7.2

86.8

7.2

101.2

7.2

Nominal Thread

Diameter

(UNF)

Torque

N·m

ft-lb

7/16–20

1/2–20

9/16–18

3/4–16

1-1/16–12

1-5/16–12

1-5/8–12

16.7

2.0

22.6

2.0

31.4

2.9

59.8

4.9

102.0

5.9

135.3

7.8

181.4

9.8

12.3

1.4

16.6

1.4

23.1

2.1

44.1

3.5

75.2

4.4

99.8

5.8

133.8

7.2

O-RING

GENERAL

I-15

TB125, 135, 145

Bolts and Nuts (for ISO Strength Category 10.9)

1. General Tightening Points (Non-lubricated)

• All securing points other than the special tight-

ening points.

2. Special Tightening Points (Grease with molyb-

denum disulfide applied.)
• Points where particularly necessary due to

function.
Special tightening positions and associated
instructions are given in the text.

3. Points where thread-locking compound is used

(Three Bond #1324 is applied.)
Thread-locking compound positions and associ-
ated instructions are given in the text.

4. If tightening torque values are provided in this

manual, then tightening should be done accord-
ing to those values.
(This indicates that the tightening torque differs
from the values given in this table.)

5. In order to tighten bolts and nuts evenly, they

should be tightened alternately top, bottom, left,
right.

Thread

Size

Pitch

Torque

General Tightening Points

Special Tightening Points

N·m

kgf·m

ft-lb

N·m

kgf·m

ft-lb

Coarse

Fine

M 6

1.0

M 8

1.25

M10

1.5

M12

1.75

M14

2.0

M16

2.0

M20

2.5

M 8

1.0

M10

1.25

M12

1.5

M14

1.5

M16

1.5

M20

1.5

9.8

0.5

22.6

1.1

47.1

2.4

83.4

4.1

134.4

6.7

207.9

10.4

410.9

20.5

24.5

1.2

50.0

2.5

87.3

4.3

135.3

6.8

220.6

11.0

452.1

22.6

1.0

0.05

2.3

0.11

4.8

0.24

8.5

0.42

13.7

0.68

21.2

1.06

41.9

2.09

2.5

0.12

5.1

0.25

8.9

0.44

13.8

0.69

22.5

1.12

46.1

2.30

7.2

0.4

16.6

0.8

34.7

1.7

61.5

3.0

99.1

4.9

153.3

7.7

303.1

15.1

18.1

0.9

36.9

1.8

64.4

3.2

99.9

5.0

162.7

8.1

333.4

16.6

11.8

0.6

26.5

1.3

54.9

2.7

97.1

4.8

155.9

7.7

241.2

12.1

475.6

23.7

28.4

1.4

58.8

2.9

102.0

5.1

157.9

7.8

256.0

12.7

524.7

26.1

1.2

0.06

2.7

0.13

5.6

0.28

9.9

0.49

15.9

0.79

24.6

1.23

48.5

2.42

2.9

0.14

6.0

0.30

10.4

0.52

16.1

0.80

26.1

1.30

53.5

2.66

8.7

0.4

19.5

0.9

40.5

2.0

71.6

3.5

115.0

5.7

177.9

8.9

350.8

17.5

21.0

1.0

43.4

2.2

75.2

3.8

116.5

5.8

188.8

9.4

387.0

19.2

GENERAL

I-16

TB125, 135, 145

II-1

TB125, 135, 145

II .

SPECIFICATIONS

II-2

SPECIFICATIONS

TB125, 135, 145

CONTENTS

Names of Components .......................................................................................................................................... 3

Dimensions ............................................................................................................................................................ 4

Specification Tables ............................................................................................................................................ 15

Mass Tables ......................................................................................................................................................... 24

Recommended Lubricants ................................................................................................................................... 26

Types of Crawler Belts ........................................................................................................................................ 27

Types of Attachments and Their Combinations .................................................................................................. 28

Service Standards ................................................................................................................................................ 32

Standards for Judging Performance ..................................................................................................................... 50

Reference Value Table .................................................................................................................................. 50

Methods for Inspecting Performance ............................................................................................................ 56

In regard to Standard Values and Allowable Values

The terms used in the items “Servicing Standards” and “Standards for Judging Performance” have the following
meanings.

Standard Value ......... This indicates the standard value for the new machine at the time of shipping from the factory.

It should be used as the target value for maintenance work after operation.

Allowable Value ....... The dimensions of parts change during use because of wear and deformation. Also, the

performance of pumps, motors, and other hydraulic equipment drops, and this is the
estimated value indicating the use limit for the respective part. It is decided under reference
to the standard at the time of shipping, the results of various tests, etc. As the use conditions,
the degree of repairs, etc., differ for each machine, these should be combined and used as
reference for servicing standards and standards for judging performance.
* Do not use the standard values and the allowable values as standards for customer claims.

II-3

SPECIFICATIONS

TB125, 135, 145

NAMES OF COMPONENTS

NAMES OF COMPONENTS

The above figure shows the components of the TB135.

1. Cab
2. Engine hood
3. Fuel tank
4. Hydraulic tank
5. Hydraulic pump
6. Slew motor
7. Pilot valve
8. Battery
9. Control valve
10. Lever lock cylinder

11. Engine
12. Crawler belt
13. Idler
14. Track roller
15. Carrier roller
16. Travel motor
17. Slew bearing
18. Track adjuster
19. Auxiliary line
20. Swivel joint

21. Bucket
22. Bucket cylinder
23. Arm
24. Arm cylinder
25. Boom
26. Boom cylinder
27. Swing bracket
28. Swing cylinder
29. Dozer blade
30. Dozer blade cylinder

G4B000

II-4

SPECIFICATIONS

DIMENSIONS

TB125, 135, 145

DIMENSIONS

■

TB125

Equipped with Canopy and Rubber Crawlers

Unit: mm (inches)

II-5

SPECIFICATIONS

DIMENSIONS

TB125, 135, 145

■

TB125

Equipped with Cab and Rubber Crawlers

Unit: mm (inches)

II-6

SPECIFICATIONS

DIMENSIONS

TB125, 135, 145

■

TB135

Equipped with Canopy and Rubber Crawlers

Unit: mm (inches)

II-7

SPECIFICATIONS

DIMENSIONS

TB125, 135, 145

■

TB135

Equipped with Cab and Rubber Crawlers

Unit: mm (inches)

II-8

SPECIFICATIONS

DIMENSIONS

TB125, 135, 145

■

TB145

Equipped with Canopy and Rubber Crawlers

Unit: mm (inches)

II-9

SPECIFICATIONS

DIMENSIONS

TB125, 135, 145

■

TB145

Equipped with Cab and Rubber Crawlers

Unit: mm (inches)

II-10

SPECIFICATIONS

DIMENSIONS

TB125, 135, 145

■

TB125

Long Arm

■

TB135

Long Arm

II-11

SPECIFICATIONS

DIMENSIONS

TB125, 135, 145

■

TB145

Long Arm

Content .. 1 2 3 ..