C9 Urban Transit Bus Engine Air Compressor - Remove and Install Caterpillar


Air Compressor - Remove and Install
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C9 Urban Transit Bus Engine [RENR7559]
BASIC ENGINE
AIR COMPRESSOR GP
C9 Urban Transit Bus Engine Air Compressor - Remove and Install
1.1. Removal Procedure
2.1. Installation Procedure

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
138-7573  Link Bracket 

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

Do not disconnect the air lines until the air pressure in the system is at zero. If hose is disconnected under pressure it can cause personal injury.



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, PERJ1017, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.

Dispose of all fluids according to local regulations and mandates.


  1. Drain the air pressure from the air tank.

  2. Drain the coolant from the cooling system. Refer to Operation and Maintenance Manual, "Refill Capacities and Recommendations".


    Illustration 1g01140370

  3. Remove bracket (6).

  4. Disconnect hose assemblies (1), (2), (3), and (7) from air compressor (5).

  5. Attach Tooling (A) and a suitable lifting device to air compressor (5). The weight of air compressor (5) is approximately 27 kg (60 lb).

  6. Remove bolts (4).

  7. Remove air compressor (5) and the gasket.

Installation Procedure

Table 2
Required Tools 
Tool  Part Number  Part Description  Qty 
138-7573  Link Bracket 


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.




    Illustration 2g01140370

  1. Attach Tooling (A) and a suitable lifting device to air compressor (5). The weight of air compressor (5) is approximately 27 kg (60 lb).

  2. Position the gasket and air compressor (5) in the front housing.

  3. Install bolts (4).

  4. Connect hose assemblies (1), (2), (3), and (7) to air compressor (5).

  5. Install bracket (6). Tighten the bolts for bracket (6) by using the following procedure:

    1. Tighten the bolts finger tight.

    2. Tighten the bolts to the standard torque.

  6. Fill the cooling system with coolant to the correct level. Refer to Operation and Maintenance Manual, "Refill Capacities and Recommendations".

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