C15 and C18 On-Highway Engines Precooler - Remove and Install Caterpillar


Precooler - Remove and Install
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C15 and C18 On-Highway Engines [UENR3300]
AIR INLET AND EXHAUST SYSTEM
LINES GP-AIR
C15 and C18 On-Highway Engines Precooler - Remove and Install
1.1. Removal Procedure
2.1. Installation Procedure

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, "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.



NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.


  1. Drain the coolant from the cooling system into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - Change" for the correct draining and filling procedures.


    Illustration 1g02114239

    Note: Discard clamp assemblies (1) after use.

  2. Loosen clamp assemblies (5) and disconnect both hose assemblies.

  3. Disconnect hose assembly (3) and loosen clamp assembly (1).

  4. Remove bolts (2) and remove precooler (4).

  5. Discard clamp assembly (1).


    Illustration 2g02114637

  6. Loosen clamp assembly (7) and remove elbow (6) from precooler (4). Discard clamp assembly (7).

  7. Remove bolts (9). Remove flange assembly (8) and remove the O-ring seal. Repeat this step for the other flange assembly.


    Illustration 3g02114754

  8. Loosen clamp assembly (10) and remove elbow assembly (11).

  9. Discard clamp assembly (10) after use.


    Illustration 4g02114814

    Note: Discard bellows (13) and clamp assemblies (12) after the clamp assemblies have been loosened.

  10. Loosen clamp assemblies (12). Remove elbow (12) from bellows (13). Remove elbow (14) from bellows (13).

  11. Discard bellows (13) and clamp assemblies (12).


    Illustration 5g02114933

  12. Remove bolts (16) and (17). Remove bracket (15).

Installation Procedure

  1. Install the precooler in the reverse order of removal.

    1. Tighten new clamp assemblies (10), (12), (7) and (1) to a torque of 8.5 ± 2 N·m (75 ± 18 lb in).

    2. Tighten clamp assemblies (3) and (5) to a torque of 7.3 ± 0.5 N·m (65 ± 4 lb in).

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