The document provides instructions for disassembling and assembling the final drive and travel motor of a 302.5C Mini Hydraulic Excavator. It lists the required tools and presents 32 steps for disassembly that include removing springs, pins, seals, bearings and other components. It then lists the assembly steps in reverse order with notes about properly installing spring loaded parts to avoid injury.
2. Shutdown SIS
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Product: MINI HYD EXCAVATOR
Model: 302.5C MINI HYD EXCAVATOR GBB
Configuration: 302.5C Mini Hydraulic Excavator GBB00001-UP (MACHINE) POWERED BY S3L2 Engine
Disassembly and Assembly
302.5C Mini Hydraulic Excavator Machine Systems
Media Number -RENR9147-00 Publication Date -01/09/2005 Date Updated -13/09/2005
i02370597
Final Drive and Travel Motor - Disassemble
SMCS - 4050-015; 4351-015
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1P-1857 Retaining Ring Pliers 1
B 8B-7554 Bearing Cup Puller Gp 1
C 1P-1855 Retaining Ring Pliers 1
D 1P-1859 Retaining Ring Pliers 1
E 1P-1863 Retaining Ring Pliers 1
F 154-6181 Forcing Screw 2
G 5P-5197 Retaining Ring Pliers As 1
Start By:
A. Remove the track motor. Refer to Disassembly and Assembly, "Final Drive and Travel
Motor - Remove".
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3. Illustration 1 g01176385
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.
1. Remove plug (1) and the O-ring seal.
Illustration 2 g01176386
2. Remove spring (4) and washer (3) .
3. Remove spool (2) .
4. Repeat Steps 1 through Steps 2 for the opposite side.
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4. Illustration 3 g01176387
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.
5. Remove bolts (5) and head assembly (6) .
Illustration 4 g01176388
6. Remove bearing (7) .
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6. 9. Remove pistons (10), retaining plate (11), and bearing (12) .
Illustration 8 g01176394
10. Remove pins (13) .
Illustration 9 g01176391
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.
11. Use a suitable press and Tooling (A) in order to remove retaining ring (14) .
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7. Illustration 10 g01176392
12. Remove washers (15) and spring (16) .
Illustration 11 g01176395
13. Remove O-ring seal (17) and swashplate (18) .
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8. Illustration 12 g01176396
14. Remove balls (19), pistons (20), and the springs.
Illustration 13 g01176397
15. Remove retaining ring (21) and cover (22) .
Illustration 14 g01176398
16. Remove sun gear (24) and carrier (23) .
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9. Illustration 15 g01176399
17. Use Tooling (C) in order to remove retaining ring (25) .
18. Remove washers (26), gears (27), and washers (28) .
Illustration 16 g01176400
19. Use Tooling (D) in order to remove retaining ring (30) .
20. Remove sun gear (29) .
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10. Illustration 17 g01182922
21. Use Tooling (C) in order to remove retaining rings (32) .
22. Use Tooling (A) in order to remove retaining ring (31) .
Illustration 18 g01182924
23. Use Tooling (B) in order to remove gear assembly (33) .
Illustration 19 g01182925
24. Use Tooling (E) in order to remove retaining ring (34) .
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11. Illustration 20 g01182926
25. Use Tooling (C) in order to remove housing (35) .
Illustration 21 g01182927
26. Remove Duo-cone seal gp (36) and ring (37) .
Illustration 22 g01182928
27. Use Tooling (G) in order to remove retaining ring (38) .
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12. 28. Remove bearing (39) .
Illustration 23 g01182929
29. Remove Duo-cone seal gp (40) .
Illustration 24 g01182930
30. Remove shaft (41) and bearing (42) .
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13. Illustration 25 g01182932
31. Remove bearing (42) from shaft (41) .
Illustration 26 g01182933
32. Remove seal (43) .
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14. Shutdown SIS
Previous Screen
Product: MINI HYD EXCAVATOR
Model: 302.5C MINI HYD EXCAVATOR GBB
Configuration: 302.5C Mini Hydraulic Excavator GBB00001-UP (MACHINE) POWERED BY S3L2 Engine
Disassembly and Assembly
302.5C Mini Hydraulic Excavator Machine Systems
Media Number -RENR9147-00 Publication Date -01/09/2005 Date Updated -13/09/2005
i02370600
Final Drive and Travel Motor - Assemble
SMCS - 4050-016; 4351-016
Assembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1P-1857 Retaining Ring Pliers 1
D 1P-1859 Retaining Ring Pliers 1
E 1P-1863 Retaining Ring Pliers 1
G 5P-5197 Retaining Ring Pliers As 1
Illustration 1 g01182933
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15. 1. Install seal (43) .
Illustration 2 g01182932
2. Install bearing (42) from shaft (41) .
Illustration 3 g01182930
3. Install shaft (41) and bearing (42) .
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16. Illustration 4 g01176396
Improper assembly of parts that are spring loaded can cause bodily
injury.
To prevent possible injury, follow the established assembly procedure
and wear protective equipment.
4. Install balls (19), the springs, and pistons (20) .
Illustration 5 g01176395
5. Install O-ring seal (17) and swashplate (18) .
Illustration 6 g01176392
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18. 6. Install washers (15) and spring (16) .
Illustration 7 g01176391
Improper assembly of parts that are spring loaded can cause bodily
injury.
To prevent possible injury, follow the established assembly procedure
and wear protective equipment.
7. Use a suitable press and Tooling (A) in order to install retaining ring (14) .
Illustration 8 g01176394
8. Install pins (13) .
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20. 11. Install port plate (8) .
Illustration 12 g01176388
12. Install bearing (7) .
Illustration 13 g01176387
Improper assembly of parts that are spring loaded can cause bodily
injury.
To prevent possible injury, follow the established assembly procedure
and wear protective equipment.
13. Install bolts (5) and head assembly (6) .
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