Caterpillar Cat 318D2 L Excavator (Prefix HBP) Service Repair Manual (HBP00001 and up).pdf

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Product: EXCAVATOR
Model: 318D2 L EXCAVATOR HBP
Configuration: 318D2 L Excavator HBP00001-UP (MACHINE) POWERED BY C4.4 Engine
Disassembly and Assembly
318D2 Excavator Machine Systems
Media Number -UENR7326-02 Publication Date -01/11/2016 Date Updated -10/11/2016
i05453130
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 439-3938 Link Bracket 2
C 154-6181 Forcing Bolt 1
D 439-3940 Link Bracket 2
E
5F-7366 Forcing Bolt 1
1P-5546 Crossblock 1
1U-9889 Crossblock 1
1P-0520 Driver Group 1
6V-7888 Puller Leg 2
1H-3112 Puller Assembly 1
1P-5551 Adjustable Screw Assembly 1
F - Loctite 5127 1
Start By:
a. Remove the final drive.
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Note: Cleanliness is an important factor. Before the disassembly procedure, thoroughly
clean the exterior of the component. This action will prevent dirt from entering the internal
mechanism.
1. Put an alignment mark across the sections of the final drive for assembly purposes. The
parts must be reinstalled in the original locations.
Illustration 1 g00708089
2. Fasten the final drive to Tooling (A), as shown. The combined weight of the final drive and
final drive sprocket is approximately 312 kg (688 lb).
3. Remove bolts (1) and the washers that hold the cover in position.
4. Remove the setscrews from cover (2), and fasten Tooling (B) and a suitable lifting device to
cover (2), as shown. The weight of cover (2) is approximately 32 kg (70 lb). Remove cover
(2).
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5. Remove thrust plate (3) from cover (2).
6. Remove plugs (4) from cover (2).
7. Remove O-ring seals (5) from both plugs (4) that were in the cover.
8. Remove spacer (6) from carrier assembly (7).
9. Remove sun gear (8) from carrier assembly (7).
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10. Remove carrier assembly (7) by lifting the carrier assembly straight up. The weight of
carrier assembly (7) is approximately 14 kg (30 lb).
11. Disassemble carrier assembly (7), as follows.
a. Drive spring pin (10) into planetary shaft (9) with a hammer and a punch.
b. Remove planetary shaft (9) with spring pin (10) from the carrier assembly.
c. Remove spring pin (10) from planetary shaft (9) with a hammer and a punch.
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d. Remove thrust washers (11) and planetary gear (13) from the carrier assembly.
e. Remove bearing (12) from planetary gear (13).
12. Repeat Steps 11.a through 11.e in order to remove the remaining planetary gears from the
carrier assembly.
13. Remove sun gear (14) from carrier assembly (15).
14. Remove spacer (16).
5/11
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Note: It will be necessary to pry ring gears (17) away from main housing (18) in order to
install the lifting slings.
15. Fasten a suitable lifting device to ring gears (17), as shown. Remove the ring gears from
main housing (18). The weight of ring gears (17) is approximately 45 kg (100 lb).
16. Use a screwdriver or a chisel in order to separate two ring gears (17).
Note: Two ring gears (17) are held together with Tooling (F). It may be necessary to heat
ring gears (17) in order to soften the sealant. Do not heat over 135 °C (275 °F) for more
than thirty minutes.
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17. Position a 12.7 mm (0.50 inch) shackle under carrier assembly (15).
18. Fasten a suitable lifting device to the shackle.
19. Slowly lift carrier assembly (15) from the final drive. The weight of carrier assembly (15) is
approximately 39 kg (85 lb).
20. Disassemble carrier assembly (15), as follows.
a. Drive spring pin (20) into planetary shaft (19) with a hammer and a punch.
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b. Remove planetary shaft (19) with spring pin (20) from the carrier assembly.
c. Remove spring pin (20) from planetary shaft (19) with a hammer and a punch.
d. Remove thrust washers (21) and planetary gear (23) from the carrier assembly.
e. Remove bearings (22) from planetary gear (23).
21. Repeat Steps 20.a through 20.e in order to remove the remaining planetary gears from the
carrier.
22. Remove O-ring seal (24) from main housing (18).
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23. Remove bolts (25) from gear (26).
24. Use Tooling (C) in order to remove gear (26) from main housing (18).
Note: The motor housing will separate from main housing (18) once gear (26) is removed.
Make sure that the motor housing is supported.
25. Remove shims (27) from the main housing.
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26. Fasten Tooling (D) and a suitable lifting device to main housing (18), as shown.
27. Use a hammer and a punch in order to separate main housing (18) and the final drive
sprocket from motor housing (28). The combined weight of main housing (18) and the final
drive sprocket is approximately 82 kg (180 lb).
28. Remove Duo-Cone seal (29) from motor housing (28).
29. Remove alignment pins (30).
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318D2 L Excavator HBP00001-UP (MACHINE) POWERED BY C4.4 Engine(SEB...
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30. Remove Duo-Cone seal (31) from main housing (18).
31. Use Tooling (E) in order to remove bearings (32) and (33) from the main housing.
32. If necessary, remove the final drive sprocket from the main housing.
33. Refer to Disassembly and Assembly, "Final Drive Sprocket - Remove and Install".
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
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Wed Nov 18 00:03:04 UTC+0800 2020
11/11
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Shutdown SIS
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Product: EXCAVATOR
i05453369
Final Drive - Assemble
SMCS - 4050-016
Assembly Procedure
Table 1
Required Tools
A 1P-2420 Transmission Repair Stand 1
B 439-3938 Link Bracket 2
D 439-3940 Link Bracket 2
G 126-3994 Duo-Cone Seal Installer 1
H - Loctite C5-A Anti-Seize Lubricant
F - Loctite High Flex From-In-Place Gasket
Note: Cleanliness is an important factor. Before assembly, all parts should be 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. 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 at all times.
Note: O-rings, gaskets, and seals should always be replaced. A used O-ring may not have
the same sealing properties as a new O-ring. Use 1U-6396 O-Ring Assembly Compound
during the assembly procedure.
Note: Apply a light film of hydraulic oil to all components before assembly.
1. Install the final drive sprocket if the sprocket was removed from the main housing.
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2. Refer to Disassembly and Assembly, "Final Drive Sprocket - Remove and Install".
3. Apply Tooling (H) to the outer diameter of the bearings.
4. Install bearings (32) and (33) in main housing (18) with a suitable press.
5. Make sure that bearing (32) and bearing (33) contact the counter bore in the main housing.
6. Use the following procedure to preload the bearings and determine the correct thickness of
shims.
a. Fasten Tooling (D) and a suitable lifting device to main housing (18). Install the main
housing on the motor housing.
b. Put the main housing and the motor housing in a suitable press.
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(a) Bearing surface
(b) Housing surface
c. Use a suitable press and a spacer in order to apply a load of 4000 kg (8819 lb) on the
bearings. Rotate the housing in order to seat the bearings.
d. Reduce the load on the bearings to 1000 ± 100 kg (2205 ± 221 lb).
e. Use a depth micrometer in order to measure the step length between the bearing
surface and the housing surface. Take measurements at several different locations
around the housing. Compute the average of the measured dimensions and record the
number. Call this Dimension (Y).
f. Use a depth micrometer in order to measure the step length of gear (26). Take
measurements at several different locations around the gear. Compute the average of
the measured dimensions and record the number. Call this Dimension (X).
g. The thickness of the shims is equal to (X − Y) ± 0.05 mm (0.002 inch).
Note: Use no more than two shims. If two shims are required, install the thinner shim
next to the gear.
h. Remove the main housing from the motor housing.
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7. Use Tooling (G) in order to install Duo-Cone seal (31) in main housing (18). Refer to
Disassembly and Assembly, "Duo-Cone Conventional Seals - Install".
Note: The rubber seals and all surfaces that contact the seals must be clean and dry. After
installation of the seals, put clean SAE 30 oil on the contact surfaces of the metal seals.
8. Use Tooling (G) in order to install Duo-Cone seal (29) in motor housing (28).
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9. Apply Tooling (H) to the surfaces that contact pins (30).
10. Install alignment pins (30).
Note: Do not damage the Duo-Cone seals in the main housing or in the motor housing
during the assembly of the two components. After installation of the main housing on the
motor housing, there will be a small gap between the components. The gap is caused by the
Duo-Cone seals. This gap will be eliminated during installation of gear (26).
11. Fasten Tooling (D) and a suitable lifting device to main housing (18). Install the main
housing on the motor housing.
12. Install shims (27) that were determined in Step 6.g in the main housing.
Note: If two shims are required, install the thinner shim next to the gear.
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13. Install gear (26).
14. Install bolts (25) in gear (26). Install the bolts in an even pattern until the gear is seated
against the bearing. Tighten bolts (25) in a crisscross pattern.
15. Install O-ring seal (24) to main housing (18).
16. Assemble carrier assembly (15), as follows.
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a. Install bearings (22) in planetary gear (23).
b. Install thrust washers (21) and planetary gear (23) in the carrier assembly.
c. Use a deburring tool in order to remove the metal burr from the openings in the
carrier. Install planetary shaft (19) in the carrier assembly.
d. Drive spring pin (20) into planetary shaft (19) with a hammer and a punch.
e. Orient the split in spring pin (20) vertically to the carrier. Align the split in the spring
pin to the top or to the bottom. Make a stake mark on each side of the spring pin hole
in the carrier. Each stake mark should be approximately 1.50 mm (0.059 inch) from
the outside diameter of the spring pin hole.
17. Repeat Steps 16.a through 16.e in order to install the remaining planetary gears in the carrier
assembly.
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18. Install a lifting sling through the middle of carrier assembly (15). Fasten a 12.7 mm
(0.50 inch) shackle to the suitable lifting device.
19. Install carrier assembly (15) on the final drive. The weight of carrier assembly (15) is
20. Remove the shackle and the suitable lifting device.
21. Apply Tooling (F) to the mating surface of ring gear (17b).
22. Install ring gear (17a) on ring gear (17b).
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23. Fasten a suitable lifting device to ring gears (17), as shown. Install the ring gears to main
housing (18). The weight of ring gears (17) is approximately 45 kg (100 lb).
24. Install spacer (16) in the carrier assembly.
25. Install sun gear (14) in carrier assembly (15).
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26. Assemble carrier assembly (7), as follows.
a. Install bearing (12) in planetary gear (13).
b. Install thrust washers (11) and planetary gear (13) in the carrier assembly.
c. Install planetary shaft (9) in the carrier assembly.
d. Drive spring pin (10) into planetary shaft (9) with a hammer and a punch.
e. Orient the split in spring pin (10) vertically to the carrier. Align the split in the spring
pin to the top or to the bottom. Make a stake mark on each side of the spring pin hole
in the carrier. Each stake mark should be approximately 1.50 mm (0.059 inch) from
the outside diameter of the spring pin hole.
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27. Repeat Steps 26.a through 26.e in order to install the remaining planetary gears in the carrier
assembly.
28. Install carrier assembly (7) in the ring gear. The weight of carrier assembly (7) is
29. Install sun gear (8) in carrier assembly (7).
30. Install spacer (6) in carrier assembly (7).
31. Install new O-ring seals (5) on plugs (4) that were in the cover.
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32. Install plugs (4) in cover (2). Tighten plugs (4) to a torque of 80 ± 10 N·m (59 ± 7 lb ft).
33. Install thrust plate (3) in cover (2).
34. Apply Tooling (F) to the mating surface of the ring gear.
35. Fasten Tooling (B) and a suitable lifting device to cover (2), as shown. The weight of cover
(2) is approximately 32 kg (70 lb). Install cover (2).
36. Remove Tooling (B) and install the setscrews in cover (2).
37. Install bolts (1) and the washers that hold the cover in position. Tighten bolts (1) in a
crisscross pattern.
38. Remove the final drive from Tooling (A). The combined weight of the final drive and final
drive sprocket is approximately 310 kg (683 lb).
End By:
a. Install the final drive.
12/13
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Shutdown SIS
Previous Screen
Product: EXCAVATOR
i07192988
Final Drive - Install
SMCS - 4050-012
Installation Procedure
Table 1
Required Tools
A
8S-7611 Handle As 2
8S-7615 Pin As 2
283-1495 Stand Assembly 2
B 439-3939 Link Bracket As 2
C - Loctite C5A Copper Anti-Seize -
Table 2
Torque Values of Bolts (3)
Bolt Size Torque
M16 90 ± 15 N·m (66 ± 11 lb ft) and turn an additional angle of 60 ± 5 degrees.
1/3
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1. Attach Tooling (B) and a suitable lifting device to final drive (1). The weight of final drive
(1) and the sprocket is approximately 312 kg (688 lb). Position the final drive in the frame.
Note: Make sure that bolt holes (2) for the travel motor are in the correct position.
Note: Make sure that bolts (3), the washers, the motor housing, and the frame are clean and
free of protective coating and oil.
2. Before assembly remove all compounds, oil, and dust from the female threads.
3. Apply Tooling (C) to the threads of bolt (3). Install bolts (3) and the washers in the final
drive. Tighten bolts (3) to a torque specified in Table 2.
4. Refer to Service Magazine, M0083843, "An Improved Bolt Tightening Procedure for the
Critical Joints Is Now Used on All Excavators" for more detail information.
5. Remove Tooling (B) and the suitable lifting device from the final drive.
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Typical Example
6. Lift the side of the machine to remove Tooling (A).
End By:
a. Install the travel motor.
b. Connect the track assembly.
Wed Nov 18 00:05:02 UTC+0800 2020
3/3
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Shutdown SIS
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Product: EXCAVATOR
i01001305
Swivel - Remove
SMCS - 5060-011
Removal Procedure
Table 1
Required Tools
(A) 138-7573 Link Bracket 1
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, "Caterpillar Dealer Service
Tool Catalog" for tools and supplies suitable to collect and contain
fluids on Caterpillar products.
Dispose of all fluids according to local regulations and mandates.
1/3
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At operating temperature the implement hydraulic oil tank is hot and
under pressure. Hot oil can cause burns.
To prevent possible injury, release the pressure in the implement
hydraulic system before hydraulic lines or components are disconnected
or removed.
1. Release the hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic
System Pressure - Release" in this manual.
2. Clean the outside of the swivel joint and the area around the swivel joint prior to removal.
3. Oil will drain from all hose assemblies that are connected to the swivel joint. Place suitable
containers under the machine in the area of the swivel joint in order to collect the oil.
4. Put identification marks on seven hose assemblies (1) for installation purposes. Disconnect
seven hose assemblies (1) from the swivel joint. Put plugs in the ends of the hose assemblies
in order to prevent oil loss and keep contaminants out of the hydraulic system.
5. Remove two bolts (2) and the washers that hold setting plate (3) in position. Remove setting
plate (3).
6. Remove eight bolts (4).
7. Remove one cover bolt from the swivel joint. Reuse the cover bolt in order to fasten Tool
(A) to the swivel joint. Fasten a hoist to Tool (A).
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This view is from the underside of the machine.
8. Remove bolts (5) and two cover assemblies (6) from the underside of the undercarriage
frame assembly.
This view is from the underside of the machine.
9. Put identification marks on eight hose assemblies (7) for installation purposes. Disconnect
eight hose assemblies (7) from the bottom of the swivel joint. Put plugs in the ends of the
hose assemblies in order to prevent oil loss and keep contaminants out of the hydraulic
system.
10. Remove tee fitting (8) from the swivel joint.
11. Cover the ports in the bottom of the swivel joint with tape in order to keep dirt and debris
out of the unit.
12. Remove six bolts (9).
13. Remove the swivel joint from the machine. The weight of the swivel joint is 43 kg (95 lb).
Wed Nov 18 00:06:02 UTC+0800 2020
3/3
2020/11/18

Shutdown SIS
Previous Screen
Product: EXCAVATOR
i01961404
Swivel - Remove
SMCS - 5060-011
Removal Procedure
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, "Caterpillar Dealer Service
Tool Catalog" for tools and supplies suitable to collect and contain
fluids on Caterpillar products.
Dispose of all fluids according to local regulations and mandates.
At operating temperature the implement hydraulic oil tank is hot and
under pressure. Hot oil can cause burns.
To prevent possible injury, release the pressure in the implement
hydraulic system before hydraulic lines or components are disconnected
or removed.
1/4
2020/11/18

Caterpillar Cat 318D2 L Excavator (Prefix HBP) Service Repair Manual (HBP00001 and up).pdf

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