The document provides instructions for disassembling and assembling the main hydraulic pump of a M313D Wheeled Excavator. It lists 34 steps for disassembly, removing components like pistons, springs, seals and bearings. The assembly section lists 26 steps, including installing bearings, seals, pistons and other components in reverse order and verifying dimensions using specialized tools to ensure correct assembly. Precautions are provided regarding contained fluids, released spring forces and retaining component orientations.
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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.
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Symptoms like intermittent starting and key recognition errors signal potential problems with your Mercedes’ EIS. Use diagnostic steps like error code checks and spare key tests. Professional diagnosis and solutions like EIS replacement ensure safe driving. Consult a qualified technician for accurate diagnosis and repair.
2. 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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3. 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
Illustration 2 g01247153
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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4. 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).
Illustration 3 g01173466
3. Remove roller (7), spring (6), and piston (5).
Illustration 4 g01247146
4. Remove nut (8) and coil (9).
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5. Illustration 5 g01247149
5. Remove cartridge (10), O-ring seal (11), pin (12), plug (13), and the O-ring seal.
Illustration 6 g01247151
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.
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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6. Illustration 7 g01247258
7. Remove plug (25) and plug (26).
8. Remove cap (31), plug (30), O-ring seal (28), fitting (29), and pin (27).
Illustration 8 g01247262
9. Remove pins (32), O-ring seals (33), O-ring seal (34), pin (35), and lever (36).
Illustration 9 g01173603
10. Remove coupling (38), O-ring seal (39), bolts (37), and flange (40).
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7. Illustration 10 g01173605
11. Remove O-ring seal (41) from flange (40).
Illustration 11 g01173606
Illustration 12 g01173608
Personal injury can result from being struck by parts propelled by a
released spring force.
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8. Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
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).
Illustration 13 g01173609
Illustration 14 g01173615
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9. Illustration 15 g01173616
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).
Illustration 16 g01173619
17. Remove bearing (52), plugs (53), and the O-ring seals from pump adapter (42).
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10. Illustration 17 g01312794
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.
Illustration 18 g01312797
19. Remove O-ring seal (57). Remove swashplate (56) and rotating assembly (55) as one piece.
Illustration 19 g01312798
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11. Illustration 20 g01312799
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).
Illustration 21 g01312800
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12. Illustration 22 g01312801
23. Remove pistons (58) from barrel (63).
24. Remove retainer plate (59) from pistons (58).
Illustration 23 g01312802
Illustration 24 g01312803
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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13. Illustration 25 g01312804
27. Remove plugs (67) and slotted pins (68).
Illustration 26 g01312805
28. Remove rods (69) from swashplate (57).
Illustration 27 g01312807
29. Remove bearings (70 ) from piston pump (4).
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14. Illustration 28 g01312808
30. Remove outer races (71) from piston pump (4).
Illustration 29 g01312809
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).
Illustration 30 g01312812
34. Remove shaft (75) from the piston pump.
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15. Illustration 31 g01312814
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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16. 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)
Use for 130 cc pumps.
(3)
Use for 145 cc pumps.
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17. 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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18. 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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19. 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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20. 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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21. 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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22. Illustration 15 g01313382
17. Install retainer (64) to barrel (63).
Illustration 16 g01313384
18. Install retainer plate (59) to retainer (64).
Illustration 17 g00903603
19. Bolt Tooling (D) to Tooling (E).
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23. 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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25. 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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26. Illustration 23 g01312801
28. Install pistons (58) to retainer plate (59).
Illustration 24 g01312800
29. Install retainer plate (59) with pistons (58) to barrel (63).
Illustration 25 g01313388
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27. 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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