C175-16 and C175-20 Locomotive Engines Caterpillar

Control Cabinet - Disassemble

Usage:

Disassembly Procedure

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NOTICE

Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

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Personal injury can result from improper handling of chemicals.
Make sure you use all the necessary protective equipment required to do the job.
Make sure that you read and understand all directions and hazards described on the labels and material safety data sheet of any chemical that is used.

Observe all safety precautions recommended by the chemical manufacturer for handling, storage, and disposal of chemicals.

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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	g06302524

Remove strainer assemblies (1) from the cabinet assembly
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Illustration 2 g06302527
Remove bolts (2) and side door (3). Repeat for the other side.
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Illustration 3 g06302550
Remove bolts (6) and eyebolts (4). Remove cover (5).
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Illustration 4 g06302562
Remove bolts (7) and front door (8).
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Illustration 5 g06302576
Remove tie straps (12). Disconnect harness (10).
Remove retaining hardware (9). Remove ECM (11).
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Illustration 6 g06302579
Disconnect harness assembly (13) from the temperature sensor. Disconnect harness assembly (14) from the heater group. Disconnect harness assembly (15) from the pressure sensor. Disconnect harness assembly (16) and harness assembly (17) from the solenoid valve groups.
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Illustration 7 g06302582
Disconnect harness assembly (18) from the junction block. Disconnect harness assembly (19) from the pump heater. Disconnect harness assembly (20) and harness assembly (21) from the pump group.
If equipped, remove the heater wrap from the exhaust fluid pump group.
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Illustration 8 g06302585
Remove locknuts (22) and bars (23) from diesel exhaust fluid pump group (24).
Remove diesel exhaust fluid pump group (24) and manifold group (25) as an assembly.
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Illustration 9 g06302587
Remove bolts (26). Disconnect diesel exhaust fluid pump group (24) from manifold group (25).
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Illustration 10 g06302590
Remove solenoid valve group (27), solenoid valve group (29), and the O-ring seals from the manifold group.
Remove temperature sensor group (31) and the O-ring seal from the manifold group.
Remove pressure sensor (30) and the O-ring seal from the manifold group.
Remove adapter assembly (28), adapter assembly (33), and the O-ring seals from the manifold group .
Remove heater assembly (32) from the manifold group.
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Illustration 11 g06302595
Remove valve assembly (34) and valve assembly (35) from diesel exhaust fluid pump group (24).
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Illustration 12 g06302598
Remove bolts (37) to remove pump head (36) from the pump group.
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Illustration 13 g06302601
Remove diaphragm (38) from the pump group.
Disconnect the remaining connectors and remove all cable straps. Remove the wiring harness assembly from the control cabinet.
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Illustration 14 g06302602
Remove bolts (40). Remove manifold group (39) from the control cabinet.
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Illustration 15 g06302605
Remove pressure sensor (41) and the O-ring seal from manifold group (39).
Remove solenoid valve (42) and the O-ring seal.
Remove regulator (43) and the O-ring seal.