C18 Generator Set Engines Caterpillar

Manifold (DEF Heater) - Remove and Install

Usage:

Removal Procedure

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

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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.

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Illustration 1	g06027895

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).

Clamp off hose assembly (1) and hose assembly (2).
Remove hose assembly (3) and hose assembly (5).
Disconnect harness assembly (4).
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Illustration 2 g06028217
Remove bolts (6), cap (7), adapter (8), bolts (9), and bracket (10).
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Illustration 3 g06028460
Remove bolts (11) and manifold assembly (12).
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Illustration 4 g06028470

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

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Illustration 5 g06028502

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

Installation Procedure

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).