C15 and C18 On-Highway Engines Exhaust Cooler (NRS) - Remove and Install Caterpillar


Exhaust Cooler (NRS) - Remove and Install
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C15 and C18 On-Highway Engines [UENR3300]
AIR INLET AND EXHAUST SYSTEM
INLET GP-AIR
C15 and C18 On-Highway Engines Exhaust Cooler (NRS) - Remove and Install
C15 and C18 On-Highway Engines Air Inlet Elbow - Remove and Install
1.1. Specifications
2.1. Removal Procedure
3.1. Installation Procedure

Specifications



Illustration 1g03375574

Table 1
Specification for 362-6633 Exhaust Cooler and Mounting Gp (NRS) 
Item  Qty  Part  Specification Description 
344-2636 Clamp As  Torque to 40 ± 5 N·m (30 ± 4 lb ft)

Removal Procedure

Table 2
Required Tools 
Tool  Part Number  Part Description  Qty 
5P-3931  LoctiteC5-A Copper Anti-Seize Compound 
--  Rubber Lubricant 

  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 2g01842813

  2. Remove clamp assembly (3).

  3. Remove bolts (2) and (6). Remove tube assemblies (4).

  4. If equipped, remove tube assembly (5).

  5. Remove clamp assemblies (1) from both sides of the exhaust cooler.


    Illustration 3g02485398

    Note: NRS cooler clamp assemblies (9) are a one time use only. Discard used clamp assemblies (9).

  6. Remove elbow (10).

  7. Remove bolts (8). Remove and discard clamp assemblies (9). Use two people to remove exhaust cooler (7). The weight of exhaust cooler (7) is approximately 18 kg (40 lb).

Installation Procedure

    Note: Inspect the O-ring seals, the gaskets, and the seals for wear or for damage. Replace the components, if necessary.

  1. Install exhaust cooler (7) in the reverse order of removal.

    1. Apply Tooling (B) to the bore for elbow (10).


      Illustration 4g02485236

      Note: NRS cooler clamp assemblies (9) are a one time use only. Discard used clamp assemblies (9).

    2. When installing new clamp assemblies (9), ensure the rounded edges of clamp spacers (9a) are oriented as shown.

    3. Tighten bolts (8) to a torque of 40 ± 5 N·m (30 ± 4 lb ft).

    4. Apply Tooling (A) to the threads of clamp assemblies (1) and (5). Tighten clamp assemblies (1) and (5) to a torque of 7.5 ± 1 N·m (66 ± 9 lb in).

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