

Product: BACKHOE LOADER
Model: 420D BACKHOE LOADER BLN
Configuration: 420D Backhoe Loader BLN00001-04543 (MACHINE) POWERED BY 3054 Engine
Disassembly and Assembly
416D, 420D, 424D, 428D, 430D, 432D, 438D and 442D Backhoe Loaders Engine Supplement
Air Cleaner - Remove and Install
SMCS - 1051-010
Removal Procedure
Start By:
A. Release the pressure in the hydraulic system. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release".

Illustration 1 g00530249
1. Loosen hose clamp (1). Unhook three clips (2) and remove the air cleaner cover (3) .
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Illustration 2
2. Remove the air filter cartridge (4) .

Illustration 3
3. Remove air filter cartridge (5), four bolts (6) and air filter housing (7) .
Installation Procedure

Illustration 4 g00530251
1. Install the filter housing (7). Install four bolts (6) and install the air filter cartridge (5) .

Illustration 5
2. Install the air filter cartridge (4) .
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Illustration 6
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3. Replace air cleaner cover (3) and secure cover (3) with three clips (2). Tighten the hose clamp (1) .
Copyright 1993 - 2023 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Thu Feb 2 10:58:26 UTC+0530 2023

Product: BACKHOE LOADER
Model: 420D BACKHOE LOADER BLN
Configuration: 420D Backhoe Loader BLN00001-04543 (MACHINE) POWERED BY 3054 Engine
Disassembly and Assembly
416D, 420D, 424D, 428D, 430D, 432D, 438D and 442D Backhoe Loaders Engine Supplement
Alternator - Remove and Install
SMCS - 1405-010
Removal Procedure
Start By:
A. Remove the left engine panel. Refer to Disassembly and Assembly, RENR3573, "Engine Cover - Remove and Install".
Note: Put identification on all wires for installation purposes.
1. Disconnect the batteries.

1
2. Loosen bolt (1), bolt (2), and bolt (3). Slide the alternator toward the engine and disconnect the alternator V-belts.
This is the sample of the manual Click on the download link for complete Manual

Illustration 2
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3. Disconnect electrical connection (5) and (6) .

Illustration 3
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4. Remove bolt (1), bolt (2), and bolt (3). Remove the alternator.
Installation Procedure

Illustration 4
1. Slide the alternator toward the engine and connect the alternator V-belts. Install the alternator. Install bolt (1), bolt (2), and bolt (3).

5
2. Connect electrical connection (5) and (6) .

6
3. Tighten bolt (1), bolt (2), and bolt (3) .
4. Connect the batteries.
Note: For the proper tightening procedures of the V-belt, refer to the Operation and Maintenance Manual, SEBU7399, "V-Belts - Inspect/Adjust/Replace".,
End By: Install the right engine panel. Refer to Disassembly and AssemblyRENR3573, "Engine Cover - Remove and Install".
Thu Feb 2 10:50:52 UTC+0530 2023

Product: BACKHOE LOADER
Model: 420D BACKHOE LOADER BLN
Configuration: 420D Backhoe Loader BLN00001-04543 (MACHINE) POWERED BY 3054 Engine
Disassembly and Assembly
416D, 420D, 424D, 428D, 430D, 432D, 438D and 442D Backhoe Loaders Engine Supplement
Crankshaft Pulley - Remove and Install
SMCS - 1205-010
Removal Procedure
Start By:
A. Remove the right engine panel. Refer to Disassembly and Assembly, RENR3573, "Engine Cover - Remove and Install" for the correct procedure.
B. Loosen the alternator. Refer to Disassembly and Assembly, RENR3573, "AlternatorRemove and Install" for the correct procedure.

Illustration 1
1. Remove the V-Belts (1) .
g00732453

2
2. Remove three bolts (2) and remove crankshaft pulley (3) .
Installation Procedure

3
1. Install crankshaft pulley (2) and install three bolts (3). Evenly tighten the bolts to 115 N路m (85 lb ft).

4
2. Install V-Belts (1) .
Note: For the proper tightening procedure of the V-Belts, refer to Operation and Maintenance, SEBU7399, "V-Belts - Inspect/Adjust/Replace".
, End By: Install the engine cover. Refer to Disassembly and AssemblyRENR3573, "Engine Cover - Remove and Install" for the correct procedure.
Copyright 1993 - 2023 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees.

Product: BACKHOE LOADER
Model: 420D BACKHOE LOADER BLN
Configuration: 420D Backhoe Loader BLN00001-04543 (MACHINE) POWERED BY 3054 Engine
Disassembly and Assembly
416D, 420D, 424D, 428D, 430D, 432D, 438D and 442D Backhoe Loaders Engine Supplement
Electric Starting Motor - Remove and Install
SMCS - 1453-010
Removal Procedure
Start By:
A. Remove the right engine panel. Refer to Disassembly and Assembly, RENR3573, "Engine Cover - Remove and Install".
Note: Put identification tags on all wires for installation purposes.
1. Disconnect the batteries.

Illustration 1
2. Remove wire (1) from starter (2) .
Note: The photograph for Step 3 was taken from the bottom of the starter.

2
3. Remove wire (3) and wire (4) from the starter.

Illustration 3
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4. Remove three bolts (5) and remove starter (2) .
Installation Procedure

4
1. Install the starter (2). Install three bolts (5) .
Note: The photograph for Step 2 was taken from the bottom of the starter.

2. Install wire (4) and wire (3) on the starter.

3. Install wire (1) on the starter (2) .
4. Connect the batteries. ,
End By: Install the right engine panel. Refer to Disassembly and AssemblyRENR3573, "Engine Cover - Remove and Install".
Copyright 1993 - 2023 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Thu Feb 2 10:49:21 UTC+0530 2023

Product: BACKHOE LOADER
Model: 420D BACKHOE LOADER BLN
Configuration: 420D Backhoe Loader BLN00001-04543 (MACHINE) POWERED BY 3054 Engine
Disassembly and Assembly
416D, 420D, 424D, 428D, 430D, 432D, 438D and 442D Backhoe Loaders Engine Supplement
Engine and Transmission - Install
SMCS - 1000-012; 1004-012; 3030-012; 3101-012
Installation Procedure
Table 1
Required Tools
Tool Part Number
Part Description Qty
A 138-7573 Link Bracket 4
B 6V-3145 Load Leveler 1

Illustration 1 g00753080
1. Attach tool (B) to a suitable lifting device. Attach tool (B) to the engine and to the transmission.
2. Install the engine and the transmission. The weight of the engine and transmission is 680 kg (1500 lb).

2
3. Install two bolts (59). Tighten bolts (59) to 220 卤 30 N路m (160 卤 20 lb ft).

3
4. Remove straps (58) and wood block (57) .

Illustration 4
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5. Connect three electrical connectors (56) and install strap (55) .

Illustration 5
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6. Connect seven electrical connectors (54) and install three straps (53).

Illustration 6
7. Install the valve and two bolts (52) .
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Illustration 7
8. Connect electrical connector (51) .
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Illustration 8
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9. Install the washers and two engine mounting bolts (50). Tighten bolts (50) to 220 卤 30 N路m (160 卤 20 lb ft).

Illustration 9 g00753546
10. Install the washers and engine mounting bolt (49). Tighten bolt (49) to 220 卤 30 N路m (160 卤 20 lb ft).

Illustration 10
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11. Install the washers and engine mounting bolt (48). Tighten bolt (48) to 220 卤 30 N路m (160 卤 20 lb ft).

Illustration 11
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12. Remove tool (A) and two straps (47) from hydraulic tank (46) .

12
13. Install two bolts (45) .

13
14. Install two bolts (44) .

14
.

Illustration 15
16. Connect test line (42) .

Illustration 16
17. Install fitting (41) and six screws (40) .

Illustration 17
18. Install the bolt and clamp (39) .

Illustration 18
19. Install the bolt and clamp (38) .

Illustration 19
20. Connect hoses (36) and (37) .

20



Illustration 23
24. Connect two wires (31) .
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Illustration 24
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25. Connect two wires (30). Connect three connectors (29) and install two straps (28) .

Illustration 25
26. Connect two lines (25) and governor cable (27). Tighten nut (26) to 38 卤 2 N路m (28 卤 1.5 lb ft).

26
27. Install bolt (24) .

27
28. Connect two electrical connectors (23) .

Illustration 28
29. Install two straps (22) .

Illustration 29
30. Install four straps (21) .
g00752859

Illustration 30
31. Connect connector (19) and wire (20) to the alternator.
This is the sample of the manual Click on the download link for complete Manual