Caterpillar cat m322 c wheeled excavator (prefix bdk) service repair manual (bdk00001 02000)

Service Repair Manual
Models
M322C WHEELED Excavator

Shutdown SIS
Previous Screen
Product: WHEELED EXCAVATOR
Model: M322C WHEELED EXCAVATOR BDK
Configuration: M322C Excavator BDK00001-02000 (MACHINE) POWERED BY 3056 Engine
Disassembly and Assembly
M318C and M322C Wheeled Excavators Power Train
Media Number -RENR8622-01 Publication Date -01/03/2006 Date Updated -17/03/2006
i02253113
Axle - Remove
SMCS - 3278-011; 3282-011
S/N - BDK2001-UP
S/N - H2E1-UP
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 6V-8336 Bolt 2
Illustration 1 g01132976
1. Use Tooling (A) in order to remove brake drum (1) .
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2020/3/25https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...

2. Remove bolts (2) and housing (3) .
3. Remove gear (6), coupling (5), and axle (4) .
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Wed Mar 25 09:16:37 UTC+0800 2020
2/2(W)w

Shutdown SIS
Previous Screen
i02257858
Axle - Disassemble - Front Axle
SMCS - 3278-015; 3282-015
Disassembly Procedure
Table 1
Required Tools
A
8T-0980 Bearing Extractor 1
8T-0504 Bearing Puller 1
1P-0510 Driver Gp 1
B 8T-0984 Holder 1
C 1U-7600 Slide Hammer Puller Gp 1
D
8T-0979 Puller Gp 1
1U-5816 Sleeve 1
E 1U-7502 Repair Stand 1
Start By:
A. Remove the front axle. Refer to Disassembly and Assembly, "Axle - Remove".
B. Remove the final drive carriers, the hubs, and the brakes. Refer to Disassembly and
Assembly, "Final Drive Carriers, Hubs and Brakes - Remove".
C. Remove the steering housing and bearings. Refer to Disassembly and Assembly, "Housing
and Bearings (Steer Axle) - Remove".
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1. Attach a suitable lifting device to the front axle assembly and position the front axle
assembly onto Tooling (E). The weight of the front axle assembly is approximately 213 kg
(470 lb).
2. Remove bolts (2) .
3. Attach a suitable lifting device to axle housing (1) and remove axle housing (1). The weight
of axle housing (1) is approximately 68 kg (150 lb).
4. Remove differential (3) from axle housing (4) .
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5. Install Tooling (A) in order to remove bearing cone (5) (not shown).
6. Install Tooling (A) in order to remove bearing cone (6) (not shown).
7. Remove bolts (7) from differential (3) .
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8. Remove case (8) from differential (3) .
9. Remove thrust washer (9) and side gear (10) .
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10. Remove spider assembly (11), thrust washer (12), and spider gears (13) .
11. Remove side gear (14) and thrust washer (15) (not shown).
12. Use a suitable press in order to remove differential case (16) from ring gear (17) .
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13. Install Tooling (B) to flange (19). Remove nut (18) .
14. Remove washer (20) and flange (19) .
15. Use Tooling (C) in order to remove shaft seal (21) .
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16. Remove pinion assembly (22) .
17. Remove bearing cone (23) .
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18. Remove spacing ring (24) .
19. Install Tooling (D) in order to remove bearing cone (25) .
20. Remove bearing cup (26) and bearing cup (27) from axle housing (4) .
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21. Remove bearing cup (28) and shim (28A) (not shown) from axle housing (4) .
22. Remove bearing cup (29) and O-ring seal (30) from the axle housing.
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Wed Mar 25 09:17:33 UTC+0800 2020
9/9(W)w

Shutdown SIS
Previous Screen
i07495783
Axle - Assemble - Front Axle
SMCS - 3278-016; 3282-016
Assembly Procedure
Table 1
Required Tools
B 8T-0984 Holder 1
E 1U-7502 Repair Stand 1
F 6V-2012 Depth Micrometer 1
G
8T-0986 Bearing Installer Gp 1
126-7183 Crossblock 1
J 6V-7059 Micrometer 1
K
8T-0976 Measuring Tool 1
1U-5824 Centering Ring 1
L 123-6702 Backlash Gauge Gp 1
M 8T-5096 Dial Indicator Gp 1
N 9S-7354 Torque Wrench Gp 1
P 4C-5593 Anti-Seize Compound -
1/20(W)w

1. Subtract the Dimension that is stamped on pinion assembly (22) from the Dimension that is
stamped on axle assembly (4). The difference is Dimension (A).
2. Use a Tooling (F) to measure the thickness of bearing cup (26) and bearing cone (23).
Record this Dimension as Dimension (B).
3. Subtract Dimension (B) from Dimension (A). The difference is Value (C). Value (C) is the
thickness of the shims that are needed for the correct pinion depth.
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4. Lower the temperature of bearing cup (27) and bearing cup (26).
Note: The shims are installed behind bearing cup (27).
5. Install the amount of shims that were determined in Steps 1 through 3 into axle housing (4).
6. Use Tooling (G) to install bearing cup (27) into axle housing (4).
7. Install bearing cup (26).
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8. Raise the temperature of bearing cone (25). Lower the temperature of pinion assembly (22).
9. Install bearing cone (25) onto pinion assembly (22).
10. Install spacer ring (24) onto pinion assembly (22).
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11. Install pinion assembly (22) into axle housing (4).
12. Raise the temperature of bearing cone (23). Install bearing cone (23) onto pinion assembly
(22).
13. Install screening plate (18A).
14. Install flange (19). Install washer (20) and nut (18).
15. Install Tooling (B) onto flange (19).
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Note: During the tightening of nut (18), make several full revolutions of pinion assembly
(22) in both directions.
16. Use Tooling (B) to hold flange (19) and tighten nut (18) to a torque of 800 N·m (590 lb ft).
17. Use Tooling (N) to check the rolling torque at the pinion. Rolling torque should be
1 to 3 N·m (9 to 26 lb in). If the rolling torque is not correct change spacer ring (24).
Note: When installing new bearings, adjust rolling torque to the higher side of the torque
value.
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18. Install Tooling (B). Remove nut (18), washer (20), flange (19), and Tooling (B).
Ideal contact pattern
19. Rotate the input flange, roll the crown wheel over the input pinion in both directions several
times. Remove the axle housing and the lift differential out of the axle drive housing.
Compare the contact pattern with the example in Illustration 15. Once, the correct contact
pattern is achieved install shaft seal (21).
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20. Install flange (19). Install washer (20) and nut (18). Install Tooling (B). Tighten nut (18) to
a torque of 800 N·m (590 lb ft).
21. Remove Tooling (B) from flange (19).
22. Install thrust washer (15) and side gear (14).
Note: The tabs of the thrust washers (12) must be installed in the upward position.
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23. Install spider gears (13), thrust washers (12), and spider assembly (11).
24. Install side gear (10) and thrust washer (9).
25. Install case (8) onto differential (3).
Note: For M16x1.5 bolts, apply Tooling (P) to bolts (7).
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26. Install bolts (7) into differential (3). For M12x1.5 bolts, tighten bolts (7) to a torque of
145 N·m (107 lb ft). For M16x1.5, tighten bolts (7) to a torque of 300 N·m (221 lb ft).
27. Raise the temperature of bearing cone (6) and bearing cone (5).
28. Install bearing cone (6) and bearing cone (5).
29. Install shim (28A) (not shown) and bearing cup (28) into axle housing (4).
10/20(W)w

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30. Install bearing cup (29) into Tooling (K).
31. Install differential (3) into axle housing (4).
32. Install Tooling (K) onto differential (3) and axle housing (4).
Note: During the adjustment of Tooling (K), make several full revolutions of pinion
assembly (22) in both directions.
33. Adjust Tooling (K) until differential (3) is free of play and free of pressure. Tighten the lock
bolt.
11/20(W)w

34. Install Tooling (L) to the bore of the differential shaft.
35. Install Tooling (M) onto Tooling (K) and Tooling (L) to measure the backlash. The correct
backlash is 0.15 to 0.27 mm (0.006 to 0.011 inch).
36. Change the thickness of shim (28A) from Step 29 to correct the backlash.
Note: Do not loosen the lock bolt on Tooling (K). Remove Tooling (K) and bearing cup
(29) as a unit.
37. Remove Tooling (M) and Tooling (L). Remove Tooling (K) and bearing cup (29) as a unit.
38. Use Tooling (F) and a piece of bar stock to measure from the bottom of bearing cup (29) to
the flange of Tooling (K). Subtract the thickness of the bar stock and record this Dimension
as Dimension (E).
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39. Use Tooling (F) and a piece of bar stock to measure to the mounting surface of Tooling (K).
Subtract the thickness of the bar stock and record this Dimension as Dimension (F).
40. Subtract Dimension (E) from Dimension (F) and record this value as Dimension (G).
41. Use Tooling (F) and a piece of bar stock to measure to the bottom of bearing cup (29).
Subtract the thickness of the bar stock and record this Dimension as Dimension (H).
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Caterpillar cat m322 c wheeled excavator (prefix bdk) service repair manual (bdk00001 02000)

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