G3508J, G3516J, and G3520J Engines Caterpillar


Aftercooler - Remove and Install

Usage:

G3520J N22

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
439-3938  Link Bracket 

Start By:

  1. Remove the fuel control valve.

  2. Remove the throttle control valve.


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.

Refer to Special Publication, NENG2500, "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 coolant.


    Illustration 1g01684299

  2. Attach Tooling (A) and a suitable lifting device to aftercooler (1). The weight of aftercooler (1) is approximately 323 kg (711 lb).

  3. Support the air cleaner lines and remove U-bolts (5) from both sides. Remove bolts (3) and remove bracket (2).

  4. Remove bolts (8), the retainers, the O-ring seals, and tube assembly (9).

  5. Remove bolts (10), the retainers, the O-ring seals, and tube assembly (11).

  6. Remove bolts (6), the washers, and tubes (7) from both sides of aftercooler (1).

  7. Disconnect tube assembly (13). Remove bolts (4).

  8. Remove bolts (12) from aftercooler (1) to the support assembly.


    Illustration 2g06009685

  9. Remove bolts (17), the retainers, the O-ring seals, and tube assembly (18).

  10. Remove bolts (19), the retainers, the O-ring seals, and tube assembly (20).

  11. Disconnect tube assembly (14).

  12. Remove bolts (16) and remove actuator assembly (15).

  13. Remove aftercooler (1) from the engine.

Installation Procedure

Table 2
Required Tools 
Tool  Part Number  Part Description  Qty 
439-3938  Link Bracket 


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.


  1. Inspect the condition of the O-ring seals. Replace the gaskets and the seals, if necessary.


    Illustration 3g06009685

  2. Attach Tooling (A) and a suitable lifting device to aftercooler (1). The weight of aftercooler (1) is approximately 323 kg (711 lb). Position aftercooler (1) on the engine.

  3. Position actuator assembly (15) and install bolts (16).

  4. Connect tube assembly (14).

  5. Install the O-ring seals and the retainers on tube assembly (20) and install bolts (19).

  6. Install the O-ring seals and the retainers on tube assembly (18) and install bolts (17).


    Illustration 4g01684299

  7. Install bolts (12) in aftercooler (1) to the support assembly.

  8. Install bolt (4). Connect tube assembly (13).

  9. Position tubes (7) and install the washers and bolts (6) on both sides.

  10. Install the O-ring seals and the retainers on tube assembly (11) and install bolts (10).

  11. Install the O-ring seals and the retainers on tube assembly (9) and install bolts (8).

  12. Position bracket (2) and install bolts (3). Install U-bolts (5).

  13. Fill the coolant.

End By:

  1. Install the throttle control valve.

  2. Install the fuel control valve.

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