This document provides assembly instructions for a main hydraulic pump on an excavator model. It lists 49 assembly steps and required tools. Key steps include installing bearings and seals, assembling internal components like pistons and swashplates, and torquing bolts with loctite. The final steps are to install the assembled pump and reconnect any disconnected hoses. A separate section provides 5 steps to remove the swing piston pump from the excavator.
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2. Shutdown SIS
Previous Screen
Product: WHEELED EXCAVATOR
Model: M315D WHEELED EXCAVATOR K5E
Configuration: M315D Excavator K5E00001-UP (MACHINE) POWERED BY C4.4 Engine
Disassembly and Assembly
M315D, M315D Series 2, M315D2, M317D Series 2 and M317D2 Wheeled Excavators
Machine Systems
Media Number -KENR6028-05 Publication Date -01/07/2015 Date Updated -08/07/2015
i06804170
Main Hydraulic Pump - Assemble
SMCS - 5070-016
Assembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1P-1861 Retaining Ring Pliers 1
C
464-4892(1)
Test Ring 1
128-2746(2)(3)
Test Ring 1
D
129-3873(1)
Measuring Hub 1
129-3874(2)(3)
Measuring Hub 1
E 128-2744 Measuring Bell 1
F - Vernier Height Gauge 1
G 1P-0510 Driver Gp 1
H
464-4893(1)
Alignment Plug 1
128-2742(2)
Alignment Plug 1
437-5508(3)
Alignment Plug 1
J - Loctite 242 -
(1)
Use for 95 cc pumps.
(2)
Use for 130 cc pumps.
(3)
Use for 145 cc pumps.
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3. NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01312814
1. Use Tooling (A) to install bearing (77) to shaft (75). Raise the temperature of bearing (77).
Install retaining ring (76) to shaft (75).
Illustration 2 g01313371
2. Install shaft (75) into the piston pump.
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4. Illustration 3 g01312809
3. Use Tooling (A) to install retaining ring (74).
4. Use Tooling (G) to install seal (73).
5. Use Tooling (A) to install retaining ring (72).
Illustration 4 g01312808
6. Install outer races (71) to piston pump (4).
Illustration 5 g01312805
7. Install rods (69) to swashplate (57).
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5. Illustration 6 g01313372
Illustration 7 g01313374
8. Install bearings (70) to swashplate (56). Install a rubber band to each of bearings (70). The
rubber band will hold bearings (70) to swashplate (56).
9. Carefully install swashplate (56) to piston pump (4).
Illustration 8 g01313375
10. Cut the rubber band on swashplate (56).
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6. Illustration 9 g01312804
Note: Rods (68) must engage slotted pins (68).
11. Install plugs (67) and slotted pins (68).
Illustration 10 g01312794
12. Install the maximum angle stop screw (54). Repeat for the opposite side of piston pump (4)
to install the minimum angle stop screw.
Illustration 11 g01173661
13. Place port plate (47) on a surface plate.
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7. Illustration 12 g01173662
14. Install Tooling (H) to port plate (47).
Illustration 13 g01313379
15. Install barrel (63) onto Tooling (H) and port plate (47).
Illustration 14 g01313380
16. Install Tooling (C) to retainer (64). Shims and springs must be removed from retainer (64).
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9. Illustration 18 g01313386
20. Install assembled Tooling (D) and Tooling (E) into the splined bores of retainer (64). Make
sure that Tooling is properly seated.
Illustration 19 g01313387
21. Record the dimension that is stamped on the side of Tooling (E). This dimension is the
distance from the top of retainer plate (59) to the top of Tooling (E). This dimension is
called Dimension (W).
Illustration 20 g00903619
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10. 22. Use Tooling (F) to measure the distance from the top of the surface plate to the top of
Tooling (E). Record this dimension. Call this Dimension (X).
23. Use the following calculation: Dimension (X) - Dimension (W) = Dimension (Y).
24. Dimension (Y) is the correct lift-off limitation without shim (66).
Note: This is the correct lift-off limitation for the 95 cc main hydraulic pump.
122.65 + 0.0 − 0.200 mm (4.8287 + 0.00 − 0.0078 inch) Call this Dimension (Z).
Note: This is the correct lift-off limitation for the 130 cc and 145 cc main hydraulic pump.
136.95 + 0.0 − 0.200 mm (5.3917 + 0.00 − 0.0078 inch) Call this Dimension (Z).
25. Use the following calculation: Dimension (Z) - Dimension (Y) = Thickness of shim (66).
Note: Shim (66) is available in several thicknesses. Select the correct thickness of shim (66)
to obtain the correct lift-off limitation. Only one shim (66) should be used.
Illustration 21 g01312802
Illustration 22 g01312803
26. Install cup springs (65) and shim (66) to barrel (63).
27. Install retainer (64) to barrel (63).
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12. Illustration 26 g01313391
Illustration 27 g01313392
30. Install rotating assembly (55) into piston pump (4).
31. Install retainers (61) and bolts (62). Use Tooling (J) on bolts (62).
Note: Bolts (62) should be replaced with new bolts.
32. Install O-ring seal (57) to piston pump (4).
Illustration 28 g01173619
33. Install bearing (52), plugs (53), and the O-ring seals in pump adapter (42).
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13. Illustration 29 g01173616
Illustration 30 g01173615
Illustration 31 g01173609
34. Assemble rod (51), spring (50), and bushing (49) to seat adjuster (45).
35. Install spring (48) in seat adjuster (44).
36. Install seat adjuster (44), seat adjuster (45), rods (46), and port plate (47) on pump adapter
(42).
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14. Illustration 32 g01173608
Illustration 33 g01173606
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.
37. Carefully Install pump adapter (42).
Note: Make sure that seat adjusters (44) and (45) remain assembled while pump adapter
(42) is being installed.
38. Install bolts (43).
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15. Illustration 34 g01173605
39. Install O-ring seal (41) on flange (40).
Illustration 35 g01173603
40. Install flange (40), O-ring seal (39), coupling (38), and bolts (37).
Illustration 36 g01247262
41. Install pins (32), O-ring seals (33), O-ring seal (34), lever (36), and pin (35).
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16. Illustration 37 g01247258
42. Install plug (25) and plug (26).
43. Install pin (27), fitting (29), O-ring seal (28), plug (30), and cap (31).
Illustration 38 g01247151
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.
44. Install housing (14), spool (15), spacer (16), pin (17), spring retainer (18), spring (19),
spring (20), spring retainer (21), O-ring seal (22), plug (23), and cap (24).
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17. Illustration 39 g01247149
45. Install the O-ring seal, plug (13), pin (12), O-ring seal (11), and cartridge (10).
Illustration 40 g01247146
46. Remove coil (9) and nut (8).
Illustration 41 g01173466
47. Install piston (5), spring (6), and roller (7).
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18. Illustration 42 g01247191
Illustration 43 g01247153
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.
48. Install valve assembly (2) and bolts (3).
49. Install the O-ring seal and plug (1) Into main hydraulic pump (4).
End By:
a. Install the main hydraulic pump. Refer to Disassembly and Assembly, "Main Hydraulic
Pump and Pump Drive Coupling - Install".
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Wed May 6 10:31:32 UTC+0800 2020
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19. Shutdown SIS
Previous Screen
Product: WHEELED EXCAVATOR
Model: M315D WHEELED EXCAVATOR K5E
Configuration: M315D Excavator K5E00001-UP (MACHINE) POWERED BY C4.4 Engine
Disassembly and Assembly
M315D, M315D Series 2, M315D2, M317D Series 2 and M317D2 Wheeled Excavators
Machine Systems
Media Number -KENR6028-05 Publication Date -01/07/2015 Date Updated -08/07/2015
i02817327
Piston Pump (Swing) - Remove
SMCS - 5070-011-ZW
Removal Procedure
Start By:
a. Remove the muffler. Refer to Disassembly and Assembly, "Muffler - Remove and Install".
b. Remove the gear pump. Refer to Disassembly and Assembly, "Gear Pump (Hydraulic Fan) -
Remove and Install".
Illustration 1 g01405036
1. Disconnect hose assemblies (1).
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21. 5. Remove swing pump (9).
Illustration 5 g01405134
6. Remove drive coupling (11).
Illustration 6 g01405144
7. Remove O-ring seal (12).
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Wed May 6 10:32:28 UTC+0800 2020
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22. Shutdown SIS
Previous Screen
Product: WHEELED EXCAVATOR
Model: M315D WHEELED EXCAVATOR K5E
Configuration: M315D Excavator K5E00001-UP (MACHINE) POWERED BY C4.4 Engine
Disassembly and Assembly
M315D, M315D Series 2, M315D2, M317D Series 2 and M317D2 Wheeled Excavators
Machine Systems
Media Number -KENR6028-05 Publication Date -01/07/2015 Date Updated -08/07/2015
i05441407
Piston Pump (Swing) - Disassemble
SMCS - 5070-015-ZW
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1P-1862 Pliers 1
B 1P-1861 Retaining Ring Pliers 1
C 147-3497 Spring Compressor 1
D 1U-7600 Slide Hammer Puller Gp 1
E 5P-4758 Retaining Ring Pliers 1
F 1P-1863 Retaining Ring Pliers 1
Start By:
a. Remove the piston pump. Refer to Disassembly and Assembly, "Piston Pump (Swing) -
Remove".
Personal injury can result from hydraulic oil pressure and hot oil.
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23. Hydraulic oil pressure can remain in the hydraulic system after the
engine has been stopped. Serious injury can be caused if this pressure is
not released before any service is done on the hydraulic system.
Make sure all of the work tools have been lowered to the ground, and
the oil is cool before removing any components or lines. Remove the oil
filler cap only when the engine is stopped, and the filler cap is cool
enough to touch with your bare hand.
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.
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.
Illustration 1 g00914082
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24. 1. Remove bolts (2) and (3) from servo valve (1).
2. Remove servo valve (1) from housing (4).
Illustration 2 g00914084
3. Remove bolts (5) from charge pump (6).
Note: Mark all parts for installation purposes.
4. Remove charge pump (6) from housing (4).
Illustration 3 g00914085
Note: Mark all parts for installation purposes.
5. Remove gears (7) and (8) from charge pump (6).
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25. Thank you very much for
your reading. Please Click
Here. Then Get COMPLETE
MANUAL. NO WAITING
NOTE:
If there is no response to
click on the link above,
please download the PDF
document first and then
click on it.
26. Illustration 4 g00914087
6. Remove coupler (9) from head (10).
Note: Mark all parts for installation purposes.
7. Remove plate (11) from head (10).
8. Remove bolts (12) from head (10).
Illustration 5 g00914091
9. Remove head (10) from housing (4).
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27. Illustration 6 g00914100
Note: Mark the proper orientation of port plate (13) for installation purposes.
10. Remove O-ring seal (14) from head (10).
11. Remove port plate (13) from head (10).
Illustration 7 g00914101
Personal injury can result from being struck by parts propelled by a
released spring force.
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28. Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
12. Remove test ports (15) from head (10).
13. Remove relief valve (16) from head (10).
Illustration 8 g00914104
14. Remove O-ring seal (17) from relief valve (16).
15. Remove retainer (18) from relief valve (16).
16. Remove spring (19) from head (10).
17. Remove retainer (20) from head (10).
18. Remove spool (21) from head (10).
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