This document provides disassembly instructions for the final drive of a 5110B mining excavator. It outlines 49 steps to fully disassemble the final drive, including removing gears, carriers, housings, springs, cylinders and other components. Various specialized tools are required to remove components safely. Cleanliness is emphasized to prevent contamination of parts during disassembly and reassembly.
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𝘼𝙣𝙩𝙞𝙦𝙪𝙚 𝙋𝙡𝙖𝙨𝙩𝙞𝙘 𝙏𝙧𝙖𝙙𝙚𝙧𝙨 𝙞𝙨 𝙫𝙚𝙧𝙮 𝙛𝙖𝙢𝙤𝙪𝙨 𝙛𝙤𝙧 𝙢𝙖𝙣𝙪𝙛𝙖𝙘𝙩𝙪𝙧𝙞𝙣𝙜 𝙩𝙝𝙚𝙞𝙧 𝙥𝙧𝙤𝙙𝙪𝙘𝙩𝙨. 𝙒𝙚 𝙝𝙖𝙫𝙚 𝙖𝙡𝙡 𝙩𝙝𝙚 𝙥𝙡𝙖𝙨𝙩𝙞𝙘 𝙜𝙧𝙖𝙣𝙪𝙡𝙚𝙨 𝙪𝙨𝙚𝙙 𝙞𝙣 𝙖𝙪𝙩𝙤𝙢𝙤𝙩𝙞𝙫𝙚 𝙖𝙣𝙙 𝙖𝙪𝙩𝙤 𝙥𝙖𝙧𝙩𝙨 𝙖𝙣𝙙 𝙖𝙡𝙡 𝙩𝙝𝙚 𝙛𝙖𝙢𝙤𝙪𝙨 𝙘𝙤𝙢𝙥𝙖𝙣𝙞𝙚𝙨 𝙗𝙪𝙮 𝙩𝙝𝙚 𝙜𝙧𝙖𝙣𝙪𝙡𝙚𝙨 𝙛𝙧𝙤𝙢 𝙪𝙨.
Over the 10 years, we have gained a strong foothold in the market due to our range's high quality, competitive prices, and time-lined delivery schedules.
2. Shutdown SIS
Previous Screen
Product: MINING EXCAVATOR
Model: 5110B MINING EXCAVATOR AAK
Configuration: 5110B L Excavator AAK00001-UP (MACHINE) POWERED BY 3412E Engine
Disassembly and Assembly
5110B Excavator Machine Systems
Media Number -RENR3374-09 Publication Date -01/11/2017 Date Updated -28/11/2017
i06585666
Final Drive - Disassemble
SMCS - 4050-015
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1P-2420 Transmission Repair Stand 1
B 154-6182 Forcing Bolt (M12) 2
C 439-3940 Link Bracket 2
D 421-5662 Lifting Links 2
E 1P-1864 External Retaining Ring Pliers 1
F
1P-0510 Driver Gp 1
4C-3085 Two Jaw Puller 1
G 1P-0510 Driver Gp 1
H
1U-6405 Three Jaw Puller 1
1P-0510 Driver Gp 1
J 5P-5197 External Retaining Ring Pliers 1
K
129-8122 Crossarm Puller 1
4C-5626 Forcing Screw 1
4C-5625 Jaw 2
4C-5624 Spring Clip 2
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3. 154-6182 Forcing Bolt (M12) 4
M
1U-9889 Crossblock 1
3H-0468 Puller Plate 2
8T-4123 Hard Washer 2
8T-0362 Bolt (M20 by 2.5 by 110 mm) 2
3H-0470 Forcing Screw 1
3H-0467 Puller Washer 1
3H-0466 Puller Nut 1
9S-9155 Spacer 1
1P-0525 Drive Plate 1
163-1650 Guide Sleeve 1
N 136-1452 Internal Tip Pliers 1
P 195-4609 Seal Pick 1
R 439-3940 Link Bracket 4
Start By:
a. Remove the final drive. Refer to Disassembly and Assembly, "Final Drive - Remove".
Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the
component should be thoroughly cleaned. This will help to prevent dirt from entering the internal
mechanism. The precision made components of the pump or the motor can be damaged by
contaminants or dirt. All disassembly and assembly procedures must be performed on a clean
work surface. Clean all the interior components in clean solvent. Dry all the interior components
with compressed air. Plug ports and plug hoses on the machine during repair.
Note: The hydraulic oil must be contained in the proper manner. Refer to Special Publication,
NENG7004, "Contamination Control Catalog".
NOTICE
Keep all parts clean from contaminants.
Contamination of the hydraulic system with foreign material will
reduce the service life of the hydraulic system components.
To prevent contaminants from entering the hydraulic system, always
plug or cap the lines, fittings, or hoses as they are disconnected. Cover
any disassembled components and clean them properly before
assembly.
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4. Clean the hydraulic system properly after any major component
exchange or especially after a component failure, to remove any
contamination.
NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting, and repair
of the product. Be prepared to collect the fluid with suitable containers
before opening any compartment or disassembling any component
containing fluids.
Refer to Special Publication, NENG2500, "Dealer Service Tool
Catalog" for tools and supplies suitable to collect and contain fluids on
Cat®
products.
Dispose of all fluids according to local regulations and mandates.
Illustration 1 g00766707
1. Place the final drive in position on Tooling (A). The weight of the final drive is
approximately 1021 kg (2250 lb).
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5. Illustration 2 g00766709
2. Remove plugs (1) from gear (2). Remove the O-ring seals from the plugs.
3. Remove bolts (3) from the gear.
Illustration 3 g00766710
4. Install Tooling (B) to gear (2). Separate gear (2) from gear (4).
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6. Illustration 4 g00766713
5. Attach Tooling (C) and a suitable lifting device to gear (2). Remove gear (2) from gear (4).
The weight of gear (2) is approximately 73 kg (160 lb).
Illustration 5 g00766714
6. Remove O-ring seal (6) from gear (2). Remove thrust bearing (5), if necessary.
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7. Illustration 6 g00766717
7. Remove gear (7) from the carrier.
Illustration 7 g01029563
8. Attach Tooling (D) and a suitable lifting device to carrier (8). Remove carrier (8) and the
gears. The weight of carrier (8) and the gears is approximately 50 kg (110 lb).
Illustration 8 g00766719
9. Use Tooling (E) to remove retaining ring (9) from all the gears.
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8. Illustration 9 g00766720
10. Attach Tooling (F) to gear (10). Remove gear (10) from the carrier.
11. Repeat Step 10 for the remaining gears.
Illustration 10 g00766722
Personal injury can result from flying debris.
Chips or other debris can fly off objects when struck.
Wear protective glasses to avoid injury to your eyes. All tools included
in this topic must be hardened to Rockwell C 37-42 before use.
12. Use Tooling (G) and a suitable press to remove bearing (11) from the gear.
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9. Note: Bearing (11) can also be removed by cutting the inner race.
13. Repeat Step 12 for the remaining gears.
Illustration 11 g00766723
14. Remove plate (13) and thrust plate (12) from carrier (8).
Illustration 12 g06294144
15. Remove gear (14).
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10. Illustration 13 g06294119
16. Install Tooling (D). Attach a suitable lifting device to Tooling (D). Remove carrier
assembly (15). The weight of the carrier assembly (15) is approximately 68 kg (150 lb).
Illustration 14 g06294152
17. Use Tooling (E) to remove retaining rings (16).
18. Repeat Step 17 for the remaining retaining rings.
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11. Illustration 15 g00766819
Typical Example
Illustration 16 g06294158
19. Attach Tooling (H) to gear (17) and remove gear (17).
20. Repeat Step 19 for the remaining gears.
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12. Illustration 17 g00766820
21. Use Tooling (G) and a suitable press to remove bearing (18) from gear (17).
22. Repeat Step 21 for the remaining bearings and gears.
Illustration 18 g06294179
23. Remove the retaining ring. Remove gear (19).
Illustration 19 g00766823
24. Remove gear (20) from the carrier. The weight of gear (20) is approximately 15 kg (32 lb).
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13. Illustration 20 g01029558
25. Attach Tooling (D) and a suitable lifting device to carrier (21). Remove carrier (21). The
weight of carrier (21) and the gears is approximately 170 kg (375 lb).
Illustration 21 g00766826
26. Use Tooling (J) to remove retaining ring (22).
27. Repeat Step 26for the remaining gears.
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14. Illustration 22 g00766827
28. Install Tooling (K) to gear (23). Remove gear (23) from carrier (21).
29. Repeat Step 28 for the remaining gears.
Illustration 23 g00766879
30. Use Tooling (G) and a suitable press to remove bearing (24) from gear (23).
31. Repeat Step 30 for the remaining bearings.
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15. Illustration 24 g00766880
32. Remove plate (25) from carrier (21).
Illustration 25 g01029655
33. Attach Tooling (D) and a suitable lifting device to gear (4) to support the gear for removal.
34. Remove bolts (26).
35. Install Tooling (L) and separate gear (4) from the housing. Remove gear (4) from the
housing. The weight of gear (4) is approximately 170 kg (375 lb).
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16. Illustration 26 g00766882
36. Remove O-ring seal (27) from housing (28).
37. Turn housing (28) upside-down and mount the housing on Tooling (A). The weight of the
two housings is approximately 457.10 kg (1008 lb).
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.
Illustration 27 g00766883
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17. 38. Remove the shaft (not shown) from the final drive. The shaft couples the travel motor to the
final drive.
39. Install Tooling (M) on the housing. Use Tooling (M) to relieve the spring tension.
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.
40. Use Tooling (N) to remove retaining ring (29). Slowly release the pressure on the springs.
41. Remove Tooling (M).
Illustration 28 g00766884
42. Remove plate (30) from the housing.
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18. Illustration 29 g00766960
43. Remove large springs (32) and small springs (31) from the housing.
Illustration 30 g00766961
44. Remove plug (35) and the O-ring seal. Carefully apply air pressure to port (X) to lift
cylinder (34). Remove cylinder (34). Remove plug (33) and the O-ring seal, if necessary.
Note: Cylinder (34) is not retained in the housing.
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19. Illustration 31 g00767728
Illustration 32 g00766962
45. Use Tooling (P) to remove seal rings (36) and (38) from cylinder (34). Use Tooling (P) to
remove ring seals (37) and (39).
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20. Illustration 33 g00767737
46. Remove plates (40) and friction discs (41). Turn the housings upside-down and mount the
housings on Tooling (A). The weights of the housings are approximately 433 kg (955 lb).
Illustration 34 g00767741
47. Use Tooling (N) to remove retaining ring (42) from the housing. Remove plate (43).
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21. Illustration 35 g00767758
48. Remove bolts (45) and plate (44) from housing (28).
Illustration 36 g06298806
49. Install Tooling (R) and a suitable lifting device to housing (28). Remove housing (28) from
spindle housing (46). The weight of housing (28) is approximately 209 kg (460 lb).
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22. Illustration 37 g06298813
50. Remove V ring seal (47) from the housing.
Illustration 38 g06298817
51. Remove bearing (48) from housing (28). The weight of bearing (48) is approximately 27 kg
(60 lb).
Note: Use two people to remove bearing (48).
Illustration 39 g06298820
52. Remove roller bearing cup (49), roller bearing cup (50) and Duo-cone seal kit (51).
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23. Illustration 40 g06298824
53. Remove Duo-cone seal kit (53) and bearing (52) from spindle housing (46). The weight of
bearing (52) is approximately 27 kg (60 lb).
Note: Remove the Duo-cone seal kit before you remove the bearing.
Copyright 1993 - 2021 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Wed Jan 13 22:11:56 UTC+0800 2021
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24. Shutdown SIS
Previous Screen
Product: MINING EXCAVATOR
Model: 5110B MINING EXCAVATOR AAK
Configuration: 5110B L Excavator AAK00001-UP (MACHINE) POWERED BY 3412E Engine
Disassembly and Assembly
5110B Excavator Machine Systems
Media Number -RENR3374-09 Publication Date -01/11/2017 Date Updated -28/11/2017
i01987651
Final Drive - Assemble
SMCS - 4050-016
Assembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1P-2420 Transmission Repair Stand 1
B
8T-0531 Duo-Cone Seal Installer As 1
161-4350 Duo-Cone Seal Installer 1
C 439-3940 Link Bracket 2
D 421-5662 Link Brackets 2
E 1P-1864 External Retaining Ring Pliers 1
F 439-3940 Link Bracket 4
G 1P-0510 Driver Gp 1
H 5P-5197 External Retaining Ring Pliers 1
J 1U-9889 Crossblock 1
3H-0468 Puller Plate 2
8T-4123 Hard Washer 2
8T-0362 Bolt (M20 by 2.5 by 110 mm) 2
3H-0470 Forcing Screw 1
3H-0467 Puller Washer 1
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25. 9S-9155 Spacer 1
1P-0525 Drive Plate 1
163-1650 Guide Sleeve 1
3H-0466 Puller Nut 1
K 136-1452 Internal Tip Pliers 1
L FT-2737 Rolling Torque Bar 1
Note: O-ring seals, gaskets, and seals should always be replaced. A used O-ring may not have the
same sealing properties as a new O-ring seal. A reconditioning procedure should not be degraded
because of a component such as an O-ring seal or a gasket. Use 1U-6396 O-Ring Assembly
Compound during the assembly procedure.
Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned
in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts.
Lint may be deposited on the parts which may cause later trouble. Inspect all parts. If any parts are
worn or damaged, use new parts for replacement. Dirt and other contaminants can damage the
components of the pump or of the motor. All disassembly and all assembly procedures must be
performed on a clean work surface and in a clean hydraulic area. Keep cleaned parts covered and
protected.
Note: The rubber toric ring and all the surfaces that contain the rubber toric ring must be clean and
dry at the time of the assembly. Apply a thin film of oil to contacting surfaces of the metal seal
ring before assembly. The seal ring must be assembled square with the bore and the toric ring. The
toric seal ring must not be twisted.
Note: Lower the temperature of spindle housing (48) and raise the temperature of bearing
(54) before installation purposes.
Illustration 1 g06298831
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26. Note: This photo was taken for photographic reasons. Use two people to install the bearing.
1. Install bearing (52) on spindle housing (46). The weight of bearing (52) is approximately
27 kg (60 lb).
Illustration 2 g06298829
2. Use Tooling (B) to install Duo-cone Seal (53).
Note: 8T-0531 Duo-Cone Seal Installer As is used only as a pusher in this step. 8T-0531
Duo-Cone Seal Installer As cannot be used in the traditional manner because of clearance
problems. 161-4350 Duo-Cone Seal Installation Kit includes detailed instructions for
installation of the Duo-Cone Seal.
Illustration 3 g06298828
Note: Lower the temperature of the roller bearing cups and raise the temperature of the
housing.
3. Install roller bearing cup (50) and roller bearing cup (49) in the housing.
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27. 4. Turn the housing upside-down and place the housing on blocks.
Illustration 4 g00768136
Note: Refer to Special Instruction, SEHS8364, "Assembly and Installation of Conventional
Duo-Cone Seal" for the correct procedure.
5. Use Tooling (B) to install the Duo-cone seal kit (51) (not shown).
6. Turn the housing upside-down and place the housing on blocks.
Illustration 5 g06298817
Note: Use two people to install bearing (48).
7. Install bearing (48) into housing (28). The weight of the bearing is approximately 27 kg
(60 lb). The weight of housing (28) is approximately 209 kg (460 lb).
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28. Illustration 6 g06298813
Illustration 7 g06298826
8. Attach Tooling (F) and a suitable lifting device to housing (28). Install V ring seal (47) on
the housing.
9. Install housing (28) onto spindle housing (46). Remove Tooling (F).
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29. Illustration 8 g00767758
10. Position plate (44) on the spindle housing. Install bolts (45) to secure the bearing and
housing (28). Tighten bolts (45) to a torque of 100 ± 20 N·m (73.8 ± 14.8 lb ft).
Illustration 9 g00768165
11. Install O-ring seal (27) to housing (28).
Illustration 10 g01029554
12. Attach Tooling (D) and a suitable lifting device to install gear (4) to housing (28). The
weight of gear (4) is approximately 170 kg (375 lb).
13. Install bolts (26).
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30. Illustration 11 g00768180
14. Install Tooling (L) to gear (4). Use a torque wrench and Tooling (L) to measure the rolling
torque. Record the rolling torque. Remove one shim at a time until the rolling torque
increases by a minimum of 50 N·m (37 lb ft) but not more than 100 N·m (74 lb ft).
Illustration 12 g00768374
15. Remove bolts (45). Apply 4C-4030 Thread Lock Compound to bolts (45). Install bolts (45).
Tighten bolts (45) to a torque of 100 ± 20 N·m (73.8 ± 14.8 lb ft).
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32. Illustration 13 g00768181
16. Place plate (43) in position in the spindle housing.
17. Use Tooling (K) to install retaining ring (42).
18. Attach Tooling (D) and a suitable lifting device to the housings to turn the housings upside-
down. The weight of the housings and the gear is approximately 627 kg (1382 lb).
Illustration 14 g00767737
19. Install friction discs (41) and plates (40) in the spindle housing. Install the friction discs and
the plates in alternating order. Install a plate first.
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33. Illustration 15 g00766962
20. Install ring seals (39) and (37) on cylinder (34). Install seal rings (38) and (36) on the
cylinder. Seal rings (36) and (38) may be soaked in warm water for approximately five
minutes to ease installation. Wipe a light film of oil onto the seal rings.
Illustration 16 g00767083
21. Install cylinder (34). Place the O-ring seals on plug (35) and (33). Install plugs (33) and
(35).
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