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420D Caterpillar Backhoe Loader Service Repair Manual

Page 1


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

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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.

Illustration
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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

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Illustration
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Illustration
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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) .

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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).

Illustration
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Illustration
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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.

This is the sample of the manual Click on the download link for complete Manual

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.

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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

Illustration
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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.

Illustration
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Illustration 5
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Illustration 6
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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
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Illustration
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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
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Illustration
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Illustration
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15. Connect connector (43)

Illustration 15

16. Connect test line (42) .

Illustration 16

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

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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) .

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20

Illustration
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21. Install bolt (35) .
Illustration 21
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22. Connect line (34) .
Illustration 22
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23. Connect connector (33) and install strap (32) .

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
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Illustration
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Illustration 28

29. Install two straps (22) .

Illustration 29

30. Install four straps (21) .

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Illustration 30

31. Connect connector (19) and wire (20) to the alternator.

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This is the sample of the manual Click on the download link for complete Manual

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