Caterpillar Cat 321C LCR EXCAVATOR (Prefix MCF) Service Repair Manual (MCF00001 and up)

Service Repair Manual

Model

321C LCR EXCAVATOR

321C LCR Hydraulic Excavator MCF00001-UP (MACHINE) POWERED BY 3066 E...

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Shutdown SIS Previous Screen Product: EXCAVATOR Model: 321C EXCAVATOR MCF Configuration: 321C LCR Hydraulic Excavator MCF00001-UP (MACHINE) POWERED BY 3066 Engine

Disassembly and Assembly 321C CR Excavator Engine Supplement Media Number -RENR7107-06

Publication Date -01/06/2013

Date Updated -28/06/2013

i01923461

Alternator - Remove and Install SMCS - 1405-010 S/N - MCF1-UP

Removal Procedure Start By: A. Deactivate the electrical system. Refer to Operation and Maintenance Manual, "Battery Disconnect Switch" in order to deactivate the electrical system.

Illustration 1

g01000928

Rear view of the alternator

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321C LCR Hydraulic Excavator MCF00001-UP (MACHINE) POWERED BY 3066 E...

1. Remove the nut and the washer behind rubber boot (3). Disconnect the wire behind the rubber boot.

2. Disconnect electrical connections (2) and (4) from alternator (1) .

3. Remove bolt (5) in order to disconnect the ground wires from alternator (1) .

4. Remove bolt (6) and reposition the harness assembly away from alternator (1) .

Illustration 2

g01000930

5. Adjust bolt (9) in order to release the tension on bolt (7). Remove bolt (7). Reposition the alternator and remove belt (8) .

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Illustration 3

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6. Remove bolt (10) from the alternator.

Illustration 4

g01000932

7. Support alternator (1). Remove bolt (11) from alternator (1) .

8. Remove alternator (1) from the machine.

Installation Procedure

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Illustration 5

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1. Position alternator (1) and install bolt (9) .

Illustration 6

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2. Install bolt (10) to the alternator.

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Illustration 7

g01000930

3. Install belt (8) .

4. Reposition the alternator in order to put a slight tension on belt (8). Install bolt (7). Adjust bolt (9) in order to adjust the tension on belt (8). Refer to Operation and Maintenance Manual, "Belts - Inspect/Adjust/Replace".

Illustration 8

g01000928

Rear view of the alternator

5. Position the harness assembly and install bolt (6) to alternator (1) .

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6. Connect the ground wires and install bolt (5) .

7. Connect electrical connections (2) and (4) to alternator (1) .

8. Connect the wire that is behind rubber boot (3). Install the washer and the nut that is located behind rubber boot (3). Position rubber boot (3) on the alternator.

End By: Activate the electrical system. Refer to Operation and Maintenance Manual, "Battery Disconnect Switch" in order to activate the electrical system.

Copyright 1993 - 2019 Caterpillar Inc.

Fri Oct 4 22:18:22 UTC+0800 2019

All Rights Reserved.

Private Network For SIS Licensees.

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Shutdown SIS Previous Screen Product: EXCAVATOR Model: 321C EXCAVATOR MCF Configuration: 321C LCR Hydraulic Excavator MCF00001-UP (MACHINE) POWERED BY 3066 Engine

Disassembly and Assembly 321C CR Excavator Engine Supplement Media Number -RENR7107-06

Publication Date -01/06/2013

Date Updated -28/06/2013

i02211865

Electric Starting Motor - Remove and Install SMCS - 1453-010 S/N - MCF1-UP

Removal Procedure Start By: A. Remove the counterweights. Refer to Disassembly and Assembly, "Counterweight Remove and Install".

B. Remove the hood. Refer to Disassembly and Assembly, "Hood - Remove and Install".

1. Turn the battery disconnect switch to the OFF position.

Note: Put identification marks on all wires and harness assemblies for installation purposes.

Illustration 1

g01007010

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2. Remove rubber boot (2). Slide rubber boot (2) down battery cable (1) in order to access the nut under the rubber boot.

Illustration 2

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3. Remove nut (3). Disconnect battery cable (1) .

Illustration 3

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4. Remove bolt (4) and cover (5) .

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Illustration 4

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5. Remove bolt (6). Disconnect grounding strap (7) .

Illustration 5

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6. Remove nuts (9). Remove electric starting motor (8) .

Installation Procedure

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Illustration 6

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1. Position electric starting motor (8) and install nuts (9) .

Illustration 7

g01007016

2. Connect grounding strap (7). Install bolt (6). Tighten bolt (6) to a torque of 3.5 ± 1.0 N·m (31 ± 9 lb in).

Illustration 8

g01007013

3. Position cover (5) and install bolt (4) .

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Illustration 9

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g01007012

4. Connect battery cable (1). Install nut (3). Tighten nut (3) to a torque of 11 ± 1 N·m (97 ± 9 lb in).

Illustration 10

g01007010

5. Install rubber boot (2) over the nut that connects battery cable (1) .

6. Turn the battery disconnect switch to the ON position.

End By: a. Install the hood. Refer to Disassembly and Assembly, "Hood - Remove and Install". b. Install the counterweights. Refer to Disassembly and Assembly, "Counterweight - Remove and Install".

Copyright 1993 - 2019 Caterpillar Inc.

Fri Oct 4 22:19:18 UTC+0800 2019

All Rights Reserved.

Private Network For SIS Licensees.

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2019/10/4

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Shutdown SIS Previous Screen Product: EXCAVATOR Model: 321C EXCAVATOR MCF Configuration: 321C LCR Hydraulic Excavator MCF00001-UP (MACHINE) POWERED BY 3066 Engine

Disassembly and Assembly 321C CR Excavator Engine Supplement Media Number -RENR7107-06

Publication Date -01/06/2013

Date Updated -28/06/2013

i01906909

Governor Control Motor - Remove and Install SMCS - 1716-011; 1716-012 S/N - MCF1-UP

Removal Procedure

Illustration 1

g00711956

1. Remove two bolts (3) and the washers from the hinge.

2. Remove three bolts (1) and the washers in order to remove access panel (2) .

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321C LCR Hydraulic Excavator MCF00001-UP (MACHINE) POWERED BY 3066 E...

Illustration 2

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3. Remove three bolts (5) and the washers in order to remove access panel (4) .

4. Open the engine hood.

Illustration 3

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5. Remove two nuts (6) that secure governor linkage (7) to the fuel injection pump.

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Illustration 4

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6. Loose nut (8) and (9) that secures governor linkage (7) to the engine.

Illustration 5

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7. Remove two bolts (10) and the washers in order to remove two clamps (11) that secure the governor linkage to the chassis.

Note: Some models may only have one clamp (11) .

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Illustration 6

g00711980

8. Disconnect electrical connector (13) .

9. Remove two bolts (14) and the two washers. Remove governor control motor (12) .

Installation Procedure

Illustration 7

g00711980

1. Position governor control motor (12) on the mounting bracket. Install the two washers and two bolts (14) .

2. Connect electrical connector (13) .

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321C LCR Hydraulic Excavator MCF00001-UP (MACHINE) POWERED BY 3066 E...

Illustration 8

g00711979

3. Install two clamps (11) that secure the governor linkage to the chassis.

Note: Some models may only have one clamp (11) .

4. Install two bolts (10) and the washers that hold clamps (11) in position.

Illustration 9

g00711972

5. Install governor linkage (7). Fasten governor linkage (7) with nut (8) and nut (9) .

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Illustration 10

g00711961

6. Install governor linkage (7) to the fuel injection pump. Fasten governor linkage (7) with washers and two nuts (6) .

Illustration 11

g00712442

7. Install access panel (4). Install the washers and three bolts (5) .

Illustration 12

g00711956

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8. Install access panel (2). Install the washers and three bolts (1) .

9. Install the washers and two bolts (3) to the hinge.

10. Close the engine hood.

11. Check the governor actuator.

Reference: Refer to Systems Operation/Testing and Adjusting, "Governor Actuator Calibrate" for further information.

Copyright 1993 - 2019 Caterpillar Inc.

Fri Oct 4 22:20:14 UTC+0800 2019

All Rights Reserved.

Private Network For SIS Licensees.

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2019/10/4

321C LCR Hydraulic Excavator MCF00001-UP (MACHINE) POWERED BY 3066 E...

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Shutdown SIS Previous Screen Product: EXCAVATOR Model: 321C EXCAVATOR MCF Configuration: 321C LCR Hydraulic Excavator MCF00001-UP (MACHINE) POWERED BY 3066 Engine

Disassembly and Assembly 321C CR Excavator Engine Supplement Media Number -RENR7107-06

Publication Date -01/06/2013

Date Updated -28/06/2013

i01923462

Fuel Priming Pump - Remove and Install SMCS - 1258-010 S/N - MCF1-UP

Removal Procedure 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 before opening any compartment or disassembling any component containing fluids.

Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.

Dispose of all fluids according to local regulations and mandates.

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321C LCR Hydraulic Excavator MCF00001-UP (MACHINE) POWERED BY 3066 E...

Illustration 1

g01006488

1. Open the hood.

2. Remove bolts (2) .

3. Remove fuel priming pump (1) .

Note: Fuel will drain from the fuel priming pump during the removal. Collect the fuel in a suitable container for storage or disposal.

4. Remove the gasket.

Installation Procedure 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 before opening any compartment or disassembling any component containing fluids.

Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.

Dispose of all fluids according to local regulations and mandates.

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Illustration 2

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g01006488

Note: O-rings, gaskets, and seals should always be replaced.

1. Clean the surfaces that make contact with the gasket. Install a new gasket.

2. Position fuel priming pump (1) .

3. Install bolts (2) .

4. Close the hood.

Copyright 1993 - 2019 Caterpillar Inc.

Fri Oct 4 22:21:09 UTC+0800 2019

All Rights Reserved.

Private Network For SIS Licensees.

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2019/10/4

321C LCR Hydraulic Excavator MCF00001-UP (MACHINE) POWERED BY 3066 E...

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Shutdown SIS Previous Screen Product: EXCAVATOR Model: 321C EXCAVATOR MCF Configuration: 321C LCR Hydraulic Excavator MCF00001-UP (MACHINE) POWERED BY 3066 Engine

Disassembly and Assembly 321C CR Excavator Engine Supplement Media Number -RENR7107-06

Publication Date -01/06/2013

Date Updated -28/06/2013

i01934132

Fuel Filter (Primary) and Fuel Filter Base - Remove and Install SMCS - 1261-010; 1262-010 S/N - MCF1-UP

Removal Procedure Table 1 Required Tools Tool

Part Number

Part Description

Qty

(A)

185-3630

Strap Wrench Assembly

1

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 before opening any compartment or disassembling any component containing fluids.

Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.

Dispose of all fluids according to local regulations and mandates.

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321C LCR Hydraulic Excavator MCF00001-UP (MACHINE) POWERED BY 3066 E...

Illustration 1

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1. Open hood (1) .

Illustration 2

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2. Use Tooling (A) to remove fuel filter (6) (not shown) from fuel filter base (5) .

3. Remove two banjo bolts (3) and the gaskets (not shown) in order to disconnect fuel lines (4) from fuel filter base (5) .

Note: Cap all openings or plug all openings immediately in order to prevent contamination of the fuel system.

4. Remove two bolts (2) .

5. Remove fuel filter base (5) .

Installation Procedure NOTICE

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321C LCR Hydraulic Excavator MCF00001-UP (MACHINE) POWERED BY 3066 E...

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 before opening any compartment or disassembling any component containing fluids.

Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.

Dispose of all fluids according to local regulations and mandates.

Illustration 3

g01006494

1. Position fuel filter base (5) and install bolts (2) .

2. Install banjo bolts (3) and the gaskets (not shown) in order to connect fuel lines (4) to fuel filter base (5) .

3. Install fuel filter (6) (not shown) on the fuel filter base (5). The fuel filter is hand tightened only.

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