Caterpillar Cat M313D WHEELED Excavator (Prefix W3H) Service Repair Manual (W3H00001 and up).pdf

Service Repair Manual
Models
M313D WHEELED Excavator

Shutdown SIS
Previous Screen
Product: WHEELED EXCAVATOR
Model: M313D WHEELED EXCAVATOR W3H
Configuration: M313D Excavator W3H00001-UP (MACHINE) POWERED BY C4.4 Engine
Disassembly and Assembly
M313D Wheeled Excavator Machine Systems
Media Number -KENR6025-04 Publication Date -01/03/2017 Date Updated -06/03/2017
i02817263
Main Hydraulic Pump - Disassemble
SMCS - 5070-015
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1P-1861 Retaining Ring Pliers 1
B 1U-7600 Slide Hammer Puller Gp 1
Start By:
a. Remove the main hydraulic pump. Refer to Disassembly and Assembly, "Main Hydraulic
Pump and Pump Drive Coupling - Remove".
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
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
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https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...

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: Note the location and orientation of the components for assembly purposes.
Illustration 1 g01247191
Personal injury can result from being struck by parts propelled by a
released spring force.
Make sure to wear all necessary protective equipment.
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Follow the recommended procedure and use all recommended tooling to
release the spring force.
1. Remove bolts (3) and valve assembly (2).
2. Remove plug (1) and the O-ring seal from piston pump (4).
3. Remove roller (7), spring (6), and piston (5).
4. Remove nut (8) and coil (9).
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5. Remove cartridge (10), O-ring seal (11), pin (12), plug (13), and the O-ring seal.
6. Remove cap (24), plug (23), O-ring seal (22), spring retainer (21), spring (20), spring (19),
spring retainer (18), pin (17), spacer (16), spool (15), and housing (14).
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7. Remove plug (25) and plug (26).
8. Remove cap (31), plug (30), O-ring seal (28), fitting (29), and pin (27).
9. Remove pins (32), O-ring seals (33), O-ring seal (34), pin (35), and lever (36).
10. Remove coupling (38), O-ring seal (39), bolts (37), and flange (40).
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11. Remove O-ring seal (41) from flange (40).
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12. Remove bolts (43) and pump adapter (42).
Note: Seat adjusters (44) and (45) will come apart as pump adapter (42) is being removed.
To prevent mixing of parts, slowly remove pump adapter (42).
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13. Remove rods (46).
14. Mark the position of port plate (47) in relation to pump adapter (42) for assembly purposes.
Remove port plate (47).
15. Remove spring (48) from seat adjuster (44).
16. Remove bushing (49), spring (50), and rod (51) from seat adjuster (45).
17. Remove bearing (52), plugs (53), and the O-ring seals from pump adapter (42).
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18. Mark the position of the maximum angle stop screw (54) prior to removal from the piston
pump (4). Remove maximum angle stop screw (54). Repeat for the opposite side of the
piston pump in order to remove the minimum angle stop screw.
19. Remove O-ring seal (57). Remove swashplate (56) and rotating assembly (55) as one piece.
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Note: Mark barrel (63), pistons (58), and swashplate (56) for orientation.
20. The swashplate must be heated in order to melt the thread lock . Remove bolts (62) from
swashplate (56).
Note: Bolts (62) should be replaced with new bolts.
21. Remove retainers (60) and (61) from swashplate (56).
22. Remove rotating assembly (55) from swashplate (56).
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23. Remove pistons (58) from barrel (63).
24. Remove retainer plate (59) from pistons (58).
25. Remove retainer (64) from barrel (63).
26. Remove cup springs (65) and shims (66) from barrel (63).
Note: Mark orientation of cup springs (65) and shims (66) for installation.
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27. Remove plugs (67) and slotted pins (68).
28. Remove rods (69) from swashplate (57).
29. Remove bearings (70 ) from piston pump (4).
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30. Remove outer races (71) from piston pump (4).
31. Use Tooling (A) to remove retaining ring (72).
32. Use Tooling (B) to remove seal (73).
33. Use Tooling (A) to remove retaining ring (74).
34. Remove shaft (75) from the piston pump.
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35. Use Tooling (A) to remove retaining ring (76) from shaft (74).
36. Remove bearing (77) from shaft (75). Use a suitable press to remove bearing (77).
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Sun Apr 26 21:34:34 UTC+0800 2020
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Shutdown SIS
Previous Screen
Product: WHEELED EXCAVATOR
Model: M313D WHEELED EXCAVATOR W3H
Configuration: M313D Excavator W3H00001-UP (MACHINE) POWERED BY C4.4 Engine
Disassembly and Assembly
M313D Wheeled Excavator Machine Systems
Media Number -KENR6025-04 Publication Date -01/03/2017 Date Updated -06/03/2017
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)
(3)
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NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
1. Use Tooling (A) to install bearing (77) to shaft (75). Raise the temperature of bearing (77).
Install retaining ring (76) to shaft (75).
2. Install shaft (75) into the piston pump.
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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).
6. Install outer races (71) to piston pump (4).
7. Install rods (69) to swashplate (57).
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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).
10. Cut the rubber band on swashplate (56).
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Note: Rods (68) must engage slotted pins (68).
11. Install plugs (67) and slotted pins (68).
12. Install the maximum angle stop screw (54). Repeat for the opposite side of piston pump (4)
to install the minimum angle stop screw.
13. Place port plate (47) on a surface plate.
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14. Install Tooling (H) to port plate (47).
15. Install barrel (63) onto Tooling (H) and port plate (47).
16. Install Tooling (C) to retainer (64). Shims and springs must be removed from retainer (64).
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17. Install retainer (64) to barrel (63).
18. Install retainer plate (59) to retainer (64).
19. Bolt Tooling (D) to Tooling (E).
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20. Install assembled Tooling (D) and Tooling (E) into the splined bores of retainer (64). Make
sure that Tooling is properly seated.
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).
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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.
26. Install cup springs (65) and shim (66) to barrel (63).
27. Install retainer (64) to barrel (63).
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28. Install pistons (58) to retainer plate (59).
29. Install retainer plate (59) with pistons (58) to barrel (63).
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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).
33. Install bearing (52), plugs (53), and the O-ring seals in pump adapter (42).
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