Caterpillar cat 315 b l excavator (prefix 5sw) service repair manual (5sw00001 and up)

Service Repair Manual
Models
315B L Excavator

Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 315B L EXCAVATOR 5SW
Configuration: 315B L Excavator 5SW00001-UP (MACHINE) POWERED BY 3054 Engine
Disassembly and Assembly
315B Excavator Excavator Systems
Media Number -RENR1148-00 Publication Date -01/11/1998 Date Updated -29/11/2001
i01019979
Travel Motor - Disassemble
SMCS - 4351-015
Disassembly Procedure
Start By:
A. Remove the travel motor. Refer to Disassembly and Assembly, "Travel Motor - Remove" in
this manual.
NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting and repair
of the machine. 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 Tools and Shop
Products Guide", for tools and supplies suitable to collect and contain
fluids in Caterpillar machines.
Dispose of all fluids according to local regulations and mandates.
1. Thoroughly clean the outside of the travel motor prior to disassembly. Fasten the travel
motor to a suitable holding fixture in a vertical position. The weight of the travel motor is
approximately 66 kg (145 lb) .
2. Put an alignment mark across the head and the body of the travel motor for assembly
purposes. The head must be reinstalled in the head's original position on the body of the
travel motor.
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Illustration 1 g00484393
Note: Be careful during the removal of head (2) from the body of the travel motor. Be
careful not to scratch or damage the mating surfaces of the components.
3. Remove nine socket head bolts (1) and head (2) from the body of the travel motor.
4. Turn over head (2) . Remove O-ring seal (6) , shims (5) , port plate (4) , and bearing (3)
from the head. Remove the two check valve assemblies from the head.
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Note: There is a retainer under spring (9) . This retainer is a press fit in head (2) . Do not
remove the retainer.
5. Put a bar with a small diameter in hole (X) . Use a plastic mallet to tap the bar in order to
remove spring (9) , poppet (8) and seat (7) from the head.
6. Remove three fittings (10) and four plugs (11) from the head. Remove the O-ring seal from
each fitting.
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7. Remove three O-ring seals (12) and washers (13) from the body of the travel motor.
8. Place a shop towel over brake piston (14) . Retain brake piston (14) by hand. Apply
approximately 525 kPa (75 psi) of air pressure to brake port (Y) . Brake piston (14) will
move out of the piston guide. Remove brake piston (14) from the body of the travel motor.
9. Remove O-ring seals (15) and (17) from the brake piston. Remove rings (16) and (18) from
the brake piston.
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10. Remove piston guide (19) , five friction plates (20) and the four steel plates from the body
of the travel motor.
11. Remove O-ring seal (21) and ring (22) from the piston guide.
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Note: Do not allow the components of barrel assembly (23) to come apart during the
removal from the travel motor. All of the components in the barrel assembly must be
reinstalled in the component's original location.
12. Use two large screwdrivers to slowly remove barrel assembly (23) from the body of the
travel motor. Do not allow the components to fall apart.
13. Shoe retainer (24) and piston shoe assemblies (25) are not serviced separately. Prior to the
removal of the shoe retainer and the piston shoe assemblies from barrel (26) , put
identification marks on piston shoe assemblies (25) for assembly purposes. Identification
marks are used to identify the shoe's location in shoe retainer (24) and barrel (26) . The
piston shoe assemblies must be reinstalled in the assembly's original bores in the shoe
retainer and barrel.
14. Remove shoe retainer (24) and piston shoe assemblies (25) from barrel (26) . Separate the
piston shoe assemblies from the shoe retainer.
15. Remove guide (27) and nine springs (29) from the barrel.
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16. Remove cam plate (30) from the body of the travel motor.
17. Remove two keys (31) and two locating pins (32) (not shown) from the body of the travel
motor.
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18. Remove O-ring seal (33) from the body of the travel motor.
19. Use a soft faced hammer to remove shaft assembly (34) from the body of the travel motor.
The arrow shows the direction to remove the shaft assembly.
20. Remove retaining rings (35) from each side of bearing (36) . Push shaft (34) out of bearing
(36) with a press.
21. Remove inner race (37) from shaft (34) .
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22. Remove lip type seal (38) from the body of the travel motor.
23. Remove two stoppers (39) and the two pistons from the body of the travel motor.
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All Rights Reserved.
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9/9
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Product: EXCAVATOR
i01020053
Travel Motor - Assemble
SMCS - 4351-016
Assembly Procedure
1. Make sure that all of the components of the travel motor are thoroughly clean and free of
dirt and debris prior to assembly.
2. Install retaining ring (35) in the groove on shaft (34) . Install bearing (36) on shaft (34) with
a press. Install the bearing until the bearing makes contact with the retaining ring. Install the
other retaining ring (35) on the opposite side of bearing (36) .
1/10
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3. Install inner race (37) on the end of shaft (34) . Install the inner race until the inner race is
seated against the shoulder on the shaft.
4. Apply a thin coat of 5P-3413 Pipe Sealant on surfaces (Y) on the body of the travel motor.
Install lip type seal (38) in the body of the travel motor. Install the lip type seal with the lip
of the seal outward. Be sure that the lip type seal makes contact with the counterbore in the
body of the travel motor.
Note: Slowly rotate shaft assembly (34) during the installation in order to make sure that the
shaft assembly does not bind in the body of the travel motor.
5. Apply clean hydraulic oil on the lip of lip type seal (38) . Use a press to install shaft
assembly (34) in the body of the travel motor. Slowly rotate the shaft during the installation
in order to make sure that the shaft does not bind. Make sure that the bearing on the shaft
makes contact with the counterbore in the body of the travel motor.
2/10
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Note: Locating pin (32) (not shown) on each key (31) is not centered. Install keys (31) , as
shown. This position prevents damage to barrel assembly (23) . The keys must be installed
in the key's original location in the body of the travel motor.
6. Install the two locating pins and two keys (31) in the body of the travel motor, as shown.
7. Install cam plate (30) in the body of the travel motor in the plate's original location. Make
sure that the two pistons and two keys (31) in the body of the travel motor engage properly
with the cam plate.
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8. Install nine springs (29) in the barrel. Install spacer (26) and guide (27) on the barrel.
9. Install piston shoe assemblies (25) in the piston shoe assembly's original bores in shoe
retainer (24) .
10. Apply clean hydraulic oil in the bores of the barrel and on piston shoe assemblies (25) .
Install the piston shoe assemblies with the shoe retainer in the piston shoe assembly's
original bore in barrel (26) .
Note: Make sure that cam plate (30) is correctly engaged with the two pistons in the body of
the travel motor prior to installing barrel assembly (23) . When the body of the travel motor
is tilted to allow the installation of barrel assembly (23) , cam plate (30) can slide off the
two pistons. The remaining parts of the travel motor can be assembled with the cam plate in
the incorrect position. Extensive damage will result from incorrect installation of cam plate
(30) . Use the procedure in Steps 11 and 12 to prevent damaging the travel motor.
11. Apply clean hydraulic oil on the sliding surfaces of the cam plate, on the piston shoe
assemblies and on the splined shaft of the travel motor.
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12. Route a piece of strong string through an opening for the cam plate tension adjusters. Route
the string over the cam plate and through the opposite opening for the cam plate tension
adjusters. Hold the string taut in order to keep cam plate (30) correctly engaged with keys
(31) . Position the body of the travel motor on the body's side. Do not release the tension on
the string at this time. Install barrel assembly (23) on the shaft. Pull the string out of the
body of the travel motor. It may be necessary to pull the barrel assembly and the piston shoe
assemblies away from the cam plate slightly in order to release the string.
13. Check the condition of the O-ring seal and the ring that is used on piston guide (19) . If the
O-ring seal or the ring is worn or damaged, use new parts for replacement. Install O-ring
seal (21) and ring (22) on piston guide (19) , as shown.
5/10
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14. Put the body of the travel motor in a vertical position.
15. Apply clean hydraulic oil on five friction plates (20) and the four steel plates. Alternate the
friction plates and the steel plates in the body of the travel motor. Start with a friction plate
and end with a friction plate.
16. Apply 1U-6396 O-Ring Assembly Compound on the O-ring seal and the ring on piston
guide (19) . Install the piston guide in the body of the travel motor. Install the piston guide
until the piston guide makes contact with the counterbore in the body of the travel motor.
17. Make sure that brake piston (14) is thoroughly clean and free of dirt and debris. Check the
condition of rings (16) and (18) . Check the condition of O-ring seals (15) and (17) . If the
rings or the O-ring seals are worn or damaged, use new parts for replacement. Install rings
(16) and (18) on the brake piston, as shown. Install O-ring seals (15) and (17) on the brake
piston, as shown. Apply 1U-6396 O-Ring Assembly Compound on the rings and O-ring
seals.
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18. Apply a thin coat of hydraulic oil on the surfaces of piston (14) which contact the body of
the travel motor. Install piston (14) in the body of the travel motor by hand. It may be
necessary to use a soft faced hammer to seat the piston correctly.
19. Install washers (13) in piston (14) , as shown.
20. Check the condition of three O-ring seals (12) . If the O-ring seals are worn or damaged, use
new parts for replacement. Install O-ring seals (12) in the body of the travel motor, as
shown.
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21. Install the two pistons and two stoppers (39) in the body of the travel motor. Tighten the
stoppers to a torque of 140 ± 14 N·m (105 ± 10 lb ft) .
22. Check the condition of the O-ring seals that are used on fittings (10) . If the O-ring seals are
worn or damaged, use new parts for replacement. Install the O-ring seals on fittings (10) .
Apply 5P-3413 Pipe Sealant on the threads of fittings (10) . Install the fittings in the head,
as shown.
23. Install plugs (11) in the head. Tighten each plug to a torque of 15 ± 2 N·m (11 ± 1 lb ft) .
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24. Apply a thin coat of 9S-3263 Thread Lock Compound on the threads of the two check
valves. Install the check valves in the head.
25. Install seat (7) , poppet (8) and spring (9) in the head at location (X) .
26. Check the condition of O-ring seal (6) . If the O-ring seal is worn or damaged, use a part for
replacement. Install O-ring seal (6) in the head, as shown.
27. Install bearing (3) in the head until the bearing makes contact with the counterbore in the
cover. Apply 1U-6396 O-Ring Assembly Compound on port plate (4) . Install the port plate
in the original position on the motor cover.
28. Use shims (5) so that the following requirements are met.
a. The travel motor output shaft does not rotate with an applied torque of 440 N·m (325
lb ft) or more. The brake release port is open to the air.
b. The travel motor output shaft rotates with an applied torque of 29 N·m (21 lb ft) or
less. The brake release port is pressurized to 780 kPa (115 psi) with both the inlet port
and the outlet port open to the hydraulic tank.
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Note: It may be necessary to remove head (2) several times in order to determine the correct
thickness of shims (5) . The shims are used to adjust the rolling torque of the travel motor
output shaft.
29. Apply a thin layer of 5P-0960 Molybdenum Grease on shims (5) . Install the shims on the
head. The grease will hold the shims in place during the installation of the head. Install the
head on the body of the travel motor.
30. Put head (2) in the head's original position on the travel motor. Install ten socket head bolts
(1) that hold the head in place. Tighten the ten socket head bolts to a torque of 175 ± 18
N·m (130 ± 13 lb ft) .
31. Check the condition of O-ring seal (32) . If the O-ring seal is worn or damaged, use a new
part for replacement. Install the O-ring seal in the groove on the outside of the travel motor.
32. To prevent possible damage to the travel motor, the unit should be filled with oil at least up
to the fill port prior to operation. Refer to Operation and Maintenance Manual for the
correct oil specification.
End By: Install the travel motor. Refer to Disassembly and Assembly, "Travel Motor - Install" in
this manual.
Sun Nov 8 16:54:59 UTC+0800 2020
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315B L Excavator 5SW00001-UP (MACHINE) POWERED BY 3054 Engine(SEB...
2020/11/8

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Product: EXCAVATOR
i01020109
Travel Motor - Install
SMCS - 4351-012
Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 138-7574 Link Bracket 1
B 254 mm (10 inch) of M16 X 20 Threaded Rod 1
1. Thoroughly clean the mating surfaces of the travel motor and the final drive.
2. Check the condition of the O-ring seal that is used between the travel motor and the final
drive. If the O-ring seal is damaged, use a new part for replacement.
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3. Install the O-ring seal on the body to travel motor (4) . Apply clean hydraulic oil on the O-
ring seal.
4. Fasten Tooling (A) and a hoist to travel motor (4) , as shown. Carefully install the travel
motor on Tooling (B) . Slide the travel motor into the final drive.
5. Install one of the three bolts (3) . Remove Tooling (B) and install the remaining two bolts
(3) .
6. Connect hose assemblies (1) and (2) to the travel motor. Tighten the two hose assemblies to
a torque of 80 ± 7 N·m (60 ± 5 lb ft) .
Note: Refer to Operation and Maintenance Manual, "Lubricant Viscosities and Refill
Capacities" for the correct filling procedure and for the correct levels.
7. Fill the final drive with hydraulic oil to the correct level.
End By: Install the travel brake valve. Refer to Disassembly and Assembly, "Travel Brake Valve
- Remove and Install" in this manual.
Sun Nov 8 16:55:55 UTC+0800 2020
2/2
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Product: EXCAVATOR
i01960714
Final Drive - Remove
SMCS - 4050-011
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 138-7574 Link Bracket 2
B 6V-5686 Bolt 2
Start By:
A. Separate the track assembly. Refer to Disassembly and Assembly, "Track - Seperate".
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 Tools and Shop
Products Guide" for tools and supplies suitable to collect and contain
fluids on Caterpillar products.
Dispose of all fluids according to local regulations and mandates.
1/4
2020/11/8

At operating temperature, the hydraulic oil is hot and under pressure.
Hot oils can cause burns.
To prevent possible personal injury, release the pressure in the
implement hydraulic circuit (boom, stick, bucket, and swing), travel
circuits, and the hydraulic oil tank at the filler cap before any hydraulic
lines or components are disconnected or removed.
Remove the filler cap only when the engine is stopped and the filler cap
is cool enough to touch.
1. Release the hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic
System Pressure - Release".
Typical example
2. Remove bolts (1) and the washers that hold cover assembly (2). Remove cover assembly (2)
from the inside rear of the undercarriage frame.
Note: Oil will flow from the tube assemblies when the tube assemblies are disconnected.
Oil will flow from the hose assemblies when the hose assemblies are disconnected. Position
a pan under the tube assemblies and the hose assemblies in order to collect the drain oil.
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Typical example
3. Disconnect hose assemblies (3) from the travel motor.
4. Disconnect hose assemblies (4) and (5) from the travel motor. Put plugs in the ends of the
tube assemblies and in the ends of the hose assemblies. Plugs prevent oil loss. Plugs prevent
contaminating the hydraulic system.
5. Remove elbow (6) from the travel motor.
6. Fasten Tooling (A) and a suitable lifting device to final drive (7), as shown. Put a slight
lifting tension on the final drive.
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Caterpillar cat 315 b l excavator (prefix 5sw) service repair manual (5sw00001 and up)

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