C7 On-Highway Engine Caterpillar


Relief Valve (Fuel) - Remove and Install

Usage:

C7 C7S

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
5P-0332  Crowfoot Wrench 


NOTICE

Contact with high pressure fuel may cause personal injury or death. Wait 60 seconds after the engine has stopped to allow fuel pressure to purge before any service or repair is performed on the engine fuel lines.



NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.



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.

Dispose of all fluids according to local regulations and mandates.


------ WARNING! ------

Contact with high pressure fuel may cause fluid penetration and burn hazards. High pressure fuel spray may cause a fire hazard. Failure to follow these inspection, maintenance and service instructions may cause personal injury or death.




    Illustration 1g01445061


    Illustration 2g01445062

  1. Remove tube assembly (3).

  2. Remove fitting (2).

    Note: Relief valve (1) is a two-piece valve which should not be disassembled.

    Note: Do not use Tooling (A) at Location (X).

  3. Use Tooling (A) to remove relief valve (1).

Installation Procedure

Table 2
Required Tools 
Tool  Part Number  Part Description  Qty 
5P-0332  Crowfoot Wrench 
161-9203  Grease Cartridge 


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.




    Illustration 3g01445061


    Illustration 4g01445062

    Note: Relief valve (1) is a two-piece valve which should not be disassembled.

    Note: Do not use Tooling (A) at Location (X).

  1. Apply Tooling (B) to the threads and face of relief valve (1).

  2. Install relief valve (1). Use Tooling (A) to tighten relief valve (1) to a torque of 95 ± 3 N·m (70 ± 2 lb ft).

  3. Install fitting (2).

  4. Install tube assembly (3).

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