Caterpillar Cat 304E Mini Hydraulic Excavator (Prefix TTN) Service Repair Manual (TTN00001 and up)

Service Repair Manual

Models

304E Mini Hydraulic Excavator

304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)(SEBP5979 - 16) - Docu...

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Shutdown SIS Previous Screen Product: MINI HYD EXCAVATOR Model: 304E MINI HYD EXCAVATOR TTN Configuration: 304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)

Disassembly and Assembly 303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems Media Number -UENR0148-04

Publication Date -01/10/2016

Date Updated -25/10/2016

i04713070

Sprocket - Remove and Install SMCS - 4164-010

Removal Procedure Start By: a. Remove the track.

Illustration 1

g02817696

1. Remove bolts (1) and sprocket (2).

Installation Procedure

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Table 1 Required Tools Tool

Part Number

Part Description

Qty

A

-

Loctite 242

-

Illustration 2

g02817696

1. Install sprocket (2). Install Tooling (A) to bolts (1). Install bolts (1).

End By: a. Install the track.

Copyright 1993 - 2020 Caterpillar Inc.

Tue Feb 18 20:39:40 UTC+0800 2020

All Rights Reserved.

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Shutdown SIS Previous Screen Product: MINI HYD EXCAVATOR Model: 304E MINI HYD EXCAVATOR TTN Configuration: 304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)

Disassembly and Assembly 303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems Media Number -UENR0148-04

Publication Date -01/10/2016

Date Updated -25/10/2016

i04713101

Final Drive and Travel Motor - Remove SMCS - 4050-011; 4351-011

Removal Procedure Table 1 Required Tools Tool

Part Number

Part Description

Qty

A

138-7575

Link Bracket

1

Start By: a. Remove the sprocket. b. Release the hydraulic system pressure.

Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, hoses, and tubes in order to prevent fluid loss and to keep contaminants from entering the system.

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304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)(SEBP5979 - 16) - Docu...

Illustration 1

g01229641

1. Remove bolts (1) and cover (2).

Illustration 2

g01229644

2. Attach Tooling (A) and a suitable lifting device to the final drive and travel motor. The weight of the final drive and travel motor is approximately 63 kg (140 lb).

Illustration 3

g02822616

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304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)(SEBP5979 - 16) - Docu...

Illustration 4

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g01229645

3. . Disconnect hose assemblies (3). Remove bolts (4) and the final drive and travel motor (5).

Copyright 1993 - 2020 Caterpillar Inc.

Tue Feb 18 20:40:37 UTC+0800 2020

All Rights Reserved.

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Shutdown SIS Previous Screen Product: MINI HYD EXCAVATOR Model: 304E MINI HYD EXCAVATOR TTN Configuration: 304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)

Disassembly and Assembly 303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems Media Number -UENR0148-04

Publication Date -01/10/2016

Date Updated -25/10/2016

i06024633

Final Drive and Travel Motor - Disassemble SMCS - 4050-015; 4351-015

Disassembly Procedure Table 1 Required Tools Tool

Part Number

Part Description

Qty

A

1U-9895

Crossblock

1

B

1P-1857

Retaining Ring Pliers

1

C

9S-9152

Bearing Puller Gp

1

D

289-6052

Spanner Wrench

1

Start By: A. Remove the final drive and the travel motor.

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304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)(SEBP5979 - 16) - Docu...

Illustration 1

g01244969

Illustration 2

g01244970

1. Remove plug (1) .

2. Remove wire (2) and cover (1A) .

Illustration 3

g01244971

3. Remove O-ring seal (3) .

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304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)(SEBP5979 - 16) - Docu...

Illustration 4

g01244973

4. Remove plate (4) .

Illustration 5

g01244975

5. Remove gears (5) and bearings (6) .

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304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)(SEBP5979 - 16) - Docu...

Illustration 6

g01244977

6. Remove gear (8) and carrier (7) .

Illustration 7

g01244979

7. Remove screws (9) , ring (10) , and gear (11) .

Illustration 8

g01244980

8. Remove gears (12) and bearings (13) .

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304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)(SEBP5979 - 16) - Docu...

Illustration 9

g01244981

9. Remove washers (14) .

Illustration 10

g01244982

Personal injury can result from being struck by parts propelled by a released spring force.

Make sure to wear all necessary protective equipment.

Follow the recommended procedure and use all recommended tooling to release the spring force.

10. Remove plug (15) and the O-ring seal.

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304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)(SEBP5979 - 16) - Docu...

Illustration 11

g01244984

11. Remove spring (16) .

Illustration 12

g01244985

12. Remove plug (17) and the O-ring seal.

Illustration 13

g01244986

13. Remove spool (18) .

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304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)(SEBP5979 - 16) - Docu...

Illustration 14

g01244987

Personal injury can result from being struck by parts propelled by a released spring force.

Make sure to wear all necessary protective equipment.

Follow the recommended procedure and use all recommended tooling to release the spring force.

14. Remove plug (19) and the O-ring seal.

Illustration 15

g01244988

15. Remove retainer (20) and spring (21) .

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304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)(SEBP5979 - 16) - Docu...

Illustration 16

g01244989

16. Remove spool (22) .

Illustration 17

g01244991

Personal injury can result from being struck by parts propelled by a released spring force.

Make sure to wear all necessary protective equipment.

Follow the recommended procedure and use all recommended tooling to release the spring force.

17. Remove bolts (23) and head (24) .

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304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)(SEBP5979 - 16) - Docu...

Illustration 18

g01244992

18. Remove port plate (25) , bearing (27) , and pins (26) .

Illustration 19

g01244993

19. Remove springs (28) from piston (32) .

20. Remove O-ring seal (29) , O-ring seals (30) , and O-ring seals (31) .

Illustration 20

g01244994

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304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)(SEBP5979 - 16) - Do...

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21. Install Tooling (A) .

22. Apply approximately 345 kPa (50 psi)of shop air pressure in order to remove piston (32) .

Illustration 21

g01244996

23. Remove O-ring seals (34) and backup rings (33) .

Illustration 22

g01244997

24. Remove barrel (36) and plate (35) .

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304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)(SEBP5979 - 16) - Do...

Illustration 23

g01244999

25. Remove pins (37) .

Illustration 24

g01244998

Personal injury can result from being struck by parts propelled by a released spring force.

Make sure to wear all necessary protective equipment.

Follow the recommended procedure and use all recommended tooling to release the spring force.

26. Use a suitable press and Tooling (B) in order to remove retaining ring (38) .

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304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)(SEBP5979 - 16) - Do...

Illustration 25

g01245000

27. Remove washers (39) , spring (41) , and washer (40) .

Illustration 26

g01245002

28. Remove bearing (43) , pistons (42) , and retainer (44) .

Illustration 27

g01245005

29. Remove swashplate (45) .

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304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)(SEBP5979 - 16) - Do...

Illustration 28

g01245007

Personal injury can result from being struck by parts propelled by a released spring force.

Make sure to wear all necessary protective equipment.

Follow the recommended procedure and use all recommended tooling to release the spring force.

30. Remove pistons (46) , balls (49) , shaft (47) , and bearing (48) .

Illustration 29

g01245008

31. Use Tooling (C) in order to remove bearing (48) from shaft (47) .

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304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)(SEBP5979 - 16) - Do...

Illustration 30

g01245009

32. Remove springs (50) and seal (51) .

Illustration 31

g01245010

33. Remove bolts (52) .

34. Use Tooling (D) in order to remove nut (53) .

35. Remove ring gear (54) from motor housing (55) .

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304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)(SEBP5979 - 16) - Do...

Illustration 32

g03779864

Illustration 33

g03779867

Illustration 34

g03779907

36. Remove plug (56) . There is a count of 132 balls (57) . Remove balls (57) .

37. Remove Duo-Cone seal (58) and bearing (59) .

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304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)(SEBP5979 - 16) - Do...

Illustration 35

16/16

g03779912

38. Remove Duo-Cone seal (60) .

Copyright 1993 - 2020 Caterpillar Inc.

Tue Feb 18 20:41:34 UTC+0800 2020

All Rights Reserved.

Private Network For SIS Licensees.

https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...

2020/2/18