Caterpillar cat 304 e mini hydraulic excavator (prefix ttn) service repair manual (ttn00001 and up)

Service Repair Manual
Models
304E Mini Hydraulic Excavator

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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
1/2304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)(SEBP5979 - 16) - Docu...
2020/2/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...

Table 1
Required Tools
Tool Part Number Part Description Qty
A - Loctite 242 -
1. Install sprocket (2). Install Tooling (A) to bolts (1). Install bolts (1).
End By:
a. Install the track.
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All Rights Reserved.
Private Network For SIS Licensees.
Tue Feb 18 20:39:40 UTC+0800 2020

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Systems
i04713101
Final Drive and Travel Motor - Remove
SMCS - 4050-011; 4351-011
Removal Procedure
Table 1
Required Tools
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.

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

3. . Disconnect hose assemblies (3). Remove bolts (4) and the final drive and travel motor (5).
Tue Feb 18 20:40:37 UTC+0800 2020

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Systems
i06024633
Final Drive and Travel Motor - Disassemble
SMCS - 4050-015; 4351-015
Disassembly Procedure
Table 1
Required Tools
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.

1. Remove plug (1) .
2. Remove wire (2) and cover (1A) .
3. Remove O-ring seal (3) .

4. Remove plate (4) .
5. Remove gears (5) and bearings (6) .

6. Remove gear (8) and carrier (7) .
7. Remove screws (9) , ring (10) , and gear (11) .
8. Remove gears (12) and bearings (13) .

9. Remove washers (14) .
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.

11. Remove spring (16) .
13. Remove spool (18) .

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

16. Remove spool (22) .
17. Remove bolts (23) and head (24) .

18. Remove port plate (25) , bearing (27) , and pins (26) .
19. Remove springs (28) from piston (32) .
20. Remove O-ring seal (29) , O-ring seals (30) , and O-ring seals (31) .

21. Install Tooling (A) .
22. Apply approximately 345 kPa (50 psi)of shop air pressure in order to remove piston (32) .
23. Remove O-ring seals (34) and backup rings (33) .
24. Remove barrel (36) and plate (35) .
10/16304E Mini Hydraulic Excavator TTN00001-UP (MACHINE)(SEBP5979 - 16) - Do...

25. Remove pins (37) .
26. Use a suitable press and Tooling (B) in order to remove retaining ring (38) .

27. Remove washers (39) , spring (41) , and washer (40) .
28. Remove bearing (43) , pistons (42) , and retainer (44) .
29. Remove swashplate (45) .

30. Remove pistons (46) , balls (49) , shaft (47) , and bearing (48) .
31. Use Tooling (C) in order to remove bearing (48) from shaft (47) .

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32. Remove springs (50) and seal (51) .
33. Remove bolts (52) .
34. Use Tooling (D) in order to remove nut (53) .
35. Remove ring gear (54) from motor housing (55) .

36. Remove plug (56) . There is a count of 132 balls (57) . Remove balls (57) .
37. Remove Duo-Cone seal (58) and bearing (59) .

38. Remove Duo-Cone seal (60) .
Tue Feb 18 20:41:34 UTC+0800 2020

Caterpillar cat 304 e mini hydraulic excavator (prefix ttn) service repair manual (ttn00001 and up)

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Caterpillar cat 304 e mini hydraulic excavator (prefix ttn) service repair manual (ttn00001 and up)