C18 Generator Set Engines Caterpillar


Manifold (DEF Heater) - Remove and Install

Usage:

C18 GEN SE RT8

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
Distilled Water 
De-ionized Water
Diesel Exhaust Fluid (DEF)


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.




    Illustration 1g06027895

    Note: Refer to Special Instruction, REHS8231, "Removal Procedures for Diesel Exhaust Fluid (DEF) Connectors" for the correct removal procedure of hose assembly (1) and hose assembly (2).

  1. Clamp off hose assembly (1) and hose assembly (2).

  2. Remove hose assembly (3) and hose assembly (5).

  3. Disconnect harness assembly (4).


    Illustration 2g06028217

  4. Remove bolts (6), cap (7), adapter (8), bolts (9), and bracket (10).


    Illustration 3g06028460

  5. Remove bolts (11) and manifold assembly (12).


    Illustration 4g06028470
    Arrow indicates the direction to remove filter assembly (13).


    Illustration 5g06028502

    Note: To remove filter assembly (13) from manifold assembly (12), pull outward on tabs (14).

  6. Remove filter assembly (13) from manifold assembly (12).

Installation Procedure

  1. Install manifold (12) in reverse order of removal.

    1. Tighten bolts (11) in an alternating sequence to a torque of 5 ± 1 N·m (44 ± 9 lb in). Tighten bolts (11) a second time in an alternating sequence to a torque of 5 ± 1 N·m (44 ± 9 lb in).

    2. Apply Tooling (A) to the O-ring seal inside hose assembly (1) and hose assembly (2).

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