Caterpillar cat m322 d wheeled excavator (prefix p2t) service repair manual (p2t00001 and up)

Service Repair Manual
Models
M322D MH WHEELED
EXCAVATOR

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Product: WHEELED EXCAVATOR
Model: M322D WHEELED EXCAVATOR P2T
Configuration: M322D Wheeled Excavator P2T00001-UP (MACHINE) POWERED BY C6.6 Engine
Disassembly and Assembly
M316D, M318D and M322D
Wheeled Excavators Machine Systems
Media Number -UENR0123-01 Publication Date -01/04/2015 Date Updated -15/04/2015
i06875517
Piston Pump (Main Hydraulic) - Assemble
SMCS - 5070-016-HR
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
137-1329(4)
Test Pins 3
D
129-3873 Measuring Hub 1
129-3874(2)(3)
Measuring Hub 1
137-1326(4)
Measuring Hub 1
E
128-2744 Measuring Bell 1
129-3876(4)
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
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2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...

137-1331(4)
Alignment Plug 1
J - Loctite 242 -
(1)
Use for 95 cc pumps.
(2)
(3)
(4)
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).
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2. Install shaft (75) into the piston pump.
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).
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7. Install rods (69) to swashplate (57).
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).
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10. Cut the rubber band on swashplate (56).
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.
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13. Place port plate (47) on a surface plate.
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: The correct lift-off limitation for the 95 cc main hydraulic pump is
122.45 − 122.65 mm (4.8209 - 4.8287 inch). Call this Dimension (Z).
Note: The correct lift-off limitation for the 130 cc and 145 cc main hydraulic pump is
136.75 - 136.95 mm (5.3838 - 5.3917 inch). Call this Dimension (Z).
Note: The correct lift-off limitation for the 190 cc main hydraulic pump is
145.85 - 146.10 mm (5.7421 - 5.75195 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.
Note: For more lift-off and shimming information refer to REHS1607Bench Test
Procedures, "Rotary Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps
and Motors".
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26. Install cup springs (65) and shim (66) to barrel (63).
27. Install retainer (64) to barrel (63).
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).
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33. Install bearing (52), plugs (53), and the O-ring seals in pump adapter (42).
34. Assemble rod (51), spring (50), and bushing (49) to seat adjuster (45).
35. Install spring (48) in seat adjuster (44).
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36. Install seat adjuster (44), seat adjuster (45), rods (46), and port plate (47) on pump adapter
(42).
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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39. Install O-ring seal (41) on flange (40).
40. Install flange (40), O-ring seal (39), coupling (38), and bolts (37).
41. Install pins (32), O-ring seals (33), O-ring seal (34), lever (36), and pin (35).
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42. Install plug (25) and plug (26).
43. Install pin (27), fitting (29), O-ring seal (28), plug (30), and cap (31).
injury.
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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45. Install the O-ring seal, plug (13), pin (12), O-ring seal (11), and cartridge (10).
46. Remove coil (9) and nut (8).
47. Install piston (5), spring (6), and roller (7).
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injury.
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 Mar 18 11:36:23 UTC+0800 2020
17/18(W)w

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Product: WHEELED EXCAVATOR
Model: M322D WHEELED EXCAVATOR P2T
Configuration: M322D Wheeled Excavator P2T00001-UP (MACHINE) POWERED BY C6.6 Engine
Disassembly and Assembly
M316D, M318D and M322D
Wheeled Excavators Machine Systems
Media Number -UENR0123-01 Publication Date -01/04/2015 Date Updated -15/04/2015
i02974034
Piston Pump (Main Hydraulic) - Install
SMCS - 5070-012-HR
Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 138-7575 Link Bracket 2
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1. Attach Tooling (A) and a suitable lifting device to main hydraulic pump (12). The weight of
main hydraulic pump (12) is approximately 109 kg (240 lb).
2. Position main hydraulic pump (12) and install bolts (13) .
3. Connect harness assembly (11) .
4. Connect hose assemblies (10) .
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5. Connect hose assemblies (9) .
6. Connect hose assembly (8) .
7. Position hose (7) and tighten clamps (6) .
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Caterpillar cat m322 d wheeled excavator (prefix p2t) service repair manual (p2t00001 and up)

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