

C12 MARINE ENGINE

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Product: MARINE ENGINE
Model: C12 MARINE ENGINE NFL
Configuration: C12 Marine Engine NFL00001-UP
Disassembly and Assembly
C12 Marine Engines
Media Number -RENR9405-01 Publication Date -01/09/2008 Date Updated -15/09/2008
Electric Starting Motor - Remove and Install
SMCS - 1453-010
Removal Procedure NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
1. Disconnect the batteries.
2. Place an index mark on all of the harness assemblies that are connected to the electric starting motor and the solenoid.
i02195440


Illustration 1 g01108837
3. Disconnect the harness assemblies from solenoid (1) .
4. Disconnect cable assembly (2) .
5. Fasten a suitable lifting device to electric starting motor (3). The weight of the electric starting motor is approximately 26 kg (57 lb).
6. Remove bolts (4). Remove electric starting motor (3) and the gasket.
Installation Procedure
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.


Illustration 2 g01108837

Illustration 3 g01108859
1. Fasten a suitable lifting device to electric starting motor (3). The weight of the electric starting motor is approximately 26 kg (57 lb).
2. Position electric starting motor (3) and the gasket on the flywheel housing. Install bolts (4) .
3. Position cable assembly (2) on the electric starting motor and install the nut. Tighten the nut to a torque of 31 ± 4 N·m (23 ± 3 lb ft).
4. Position the harness assembly on solenoid (1) and install nut (5). Tighten the nut to a torque of 31 ± 4 N·m (23 ± 3 lb ft).
5. Position the harness assembly on solenoid (1) and install nut (6). Tighten the nut to a torque of 2.25 ± 0.25 N·m (20 ± 2 lb in).
6. Position the harness assembly on solenoid (1) and install nut (7). Tighten the nut to a torque of 2.25 ± 0.25 N·m (20 ± 2 lb in).
7. Position the harness assembly on solenoid (1) and install nut (9). Tighten the nut to a torque of 31 ± 4 N·m (23 ± 3 lb ft).
8. Position the connector on solenoid (1) and install bolt (8). Tighten the bolt to a torque of 8 ± 3 N·m (71 ± 27 lb in).
9. Connect the batteries.
Copyright 1993 - 2024 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Fri Jun 7 15:25:24 UTC+0530 2024

Product: MARINE ENGINE
Model: C12 MARINE ENGINE NFL
Configuration: C12 Marine Engine NFL00001-UP
Disassembly and Assembly
C12 Marine Engines
Media Number -RENR9405-01
Alternator - Remove and Install
SMCS - 1405-010
Removal Procedure
1. Disconnect the battery.
2. Remove the belt guard.
i02195396



Illustration 1 g01108781
3. Remove V-belt (3) .
4. Disconnect the harness assembly.
5. Remove bolt (2) and bolt (4) .
6. Remove alternator (1) .
Installation Procedure



Illustration 2 g01108781
1. Position alternator (1) on the mounting bracket.
2. Install bolt (2) and bolt (4) .
3. Connect the harness assembly.
4. Install V-Belt (3) .
5. Install the belt guard.
6. Connect the battery.
Network For SIS Licensees. Fri Jun 7 15:25:06 UTC+0530 2024

Product: MARINE ENGINE
Model: C12 MARINE ENGINE NFL
Configuration: C12 Marine Engine NFL00001-UP
Disassembly and Assembly
C12 Marine Engines
Media Number -RENR9405-01
Publication Date -01/09/2008 Date Updated -15/09/2008 i02195275
Electronic
Control Module - Remove and Install
SMCS - 1901-010
Removal Procedure


Illustration 1 g01108708
1. Loosen bolts (2) and disconnect harness assemblies (1) .
2. Remove bolts (4) .
3. Remove electronic control module (3) .
Installation procedure


Illustration 2 g01108708
1. Position electronic control module (3) on the engine.
2. Install bolts (4) .
3. Connect harness assemblies (1) and install bolts (2). Tighten the bolts to a torque of 6 ± 1 N·m (53 ± 9 lb in).
1993 - 2024 Caterpillar Inc.

Product: MARINE ENGINE
Model: C12 MARINE ENGINE NFL
Configuration: C12 Marine Engine NFL00001-UP
Disassembly and Assembly
C12 Marine Engines
Media Number -RENR9405-01 Publication Date -01/09/2008 Date Updated -15/09/2008
Inlet Air Temperature Sensor - Remove and Install
SMCS - 1921-010 NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.


Illustration 1 g01113772 (1) Inlet air temperature sensor ... 20 ± 5 N·m (15 ± 4 lb ft)
i02205549
Copyright 1993 - 2024 Caterpillar Inc.
Rights Reserved.
Network For SIS Licensees. Fri Jun 7 15:24:34 UTC+0530 2024

Product: MARINE ENGINE
Model: C12 MARINE ENGINE NFL
Configuration: C12 Marine Engine NFL00001-UP
Disassembly and Assembly
C12 Marine Engines
Media Number -RENR9405-01
Publication Date -01/09/2008
Boost Pressure Sensor - Remove and Install
SMCS - 1917-010 NOTICE
Keep all parts clean from contaminants.
Date Updated -15/09/2008
Contaminants may cause rapid wear and shortened component life.


Illustration 1 g01113752 (1) Boost pressure sensor ... 10 ± 2 N·m (88 ± 18 lb in)
i02205446
Copyright 1993 - 2024 Caterpillar Inc. All Rights Reserved.
Network For SIS Licensees. Fri Jun 7 15:24:20 UTC+0530 2024

Product: MARINE ENGINE
Model: C12 MARINE ENGINE NFL
Configuration: C12 Marine Engine NFL00001-UP
Disassembly and Assembly
C12 Marine Engines
Fuel Temperature Sensor - Remove and Install
SMCS - 1922-010
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.
i02205598


Illustration 1 g01113791
(1) Fuel temperature sensor ... 20 ± 5 N·m (15 ± 4 lb ft)
Copyright 1993 - 2024 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees.
Fri Jun 7 15:24:03 UTC+0530 2024

Product: MARINE ENGINE
Model: C12 MARINE ENGINE NFL
Configuration: C12 Marine Engine NFL00001-UP
Disassembly and Assembly
C12 Marine Engines
Fuel Pressure Sensor - Remove and Install
SMCS - 7414-010
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.
i02205667


1 g01113827
(1) Fuel pressure sensor ... 10 ± 2 N·m (88 ± 18 lb in)
Copyright 1993 - 2024 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees.
Fri Jun 7 15:23:46 UTC+0530 2024
Illustration

Product: MARINE ENGINE
Model: C12 MARINE ENGINE NFL
Configuration: C12 Marine Engine NFL00001-UP
Disassembly and Assembly
C12 Marine Engines
Media
Engine Oil Pressure Sensor - Remove and Install
SMCS - 1924-010
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.
i02205085


1 g01113562
(1) Engine oil pressure sensor ... 10 ± 2 N·m (88 ± 18 lb in)
Copyright 1993 - 2024 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees.
Fri Jun 7 15:23:29 UTC+0530 2024
Illustration

Product: MARINE ENGINE
Model: C12 MARINE ENGINE NFL
Configuration: C12 Marine Engine NFL00001-UP
Disassembly and Assembly
C12 Marine Engines
Media Number -RENR9405-01
Coolant Temperature Sensor - Remove and Install
SMCS - 1906-010
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.
i02205179


Illustration 1 g01113630
(1) Coolant temperature sensor ... 20 ± 5 N·m (15 ± 4 lb ft)
Copyright 1993 - 2024 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees.
Fri Jun 7 15:23:14 UTC+0530 2024

Product: MARINE ENGINE
Model: C12 MARINE ENGINE NFL
Configuration: C12 Marine Engine NFL00001-UP
Disassembly and Assembly
C12 Marine Engines
Media Number -RENR9405-01
Coolant Level Sensor - Remove and Install
SMCS - 7470
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.
i02204814


1 g01113483
(1) Coolant level sensor ... 22 ± 3 N·m (16 ± 2 lb ft)
Copyright 1993 - 2024 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees.
Fri Jun 7 15:22:57 UTC+0530 2024
Illustration
This is the sample of the manual click on the download link for complete manual
DOWNLOAD LINK
For some reason if link does not work download this pdf and then click