PUSHROD-VALVE 7W5402 - Caterpillar

Disassembly Procedure
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
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.
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.
Drain the urea from the tank assembly.
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Remove strainer assemblies (1) from the cabinet assembly
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Remove bolts (2) and side door (3). Repeat for the other side.
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Loosen clamp (5) and remove connector (4).
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Remove bolts (6) and door assembly (7).
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Remove bolts (8) and front door (9).
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Disconnect harness assembly (10) and harness assembly (12) from electronic control group (11).
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Remove bolts and studs (13), the mounts, the spacers, and electronic control group (11).
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Disconnect the harness assembly for fluid level sensor assembly (14). Remove the machine screws and fluid level sensor assembly (14) from the tank assembly.
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Disconnect hose (15) from the vent. Remove the vent from the tank assembly.
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Disconnect the harness assemblies (17) from switch assembly (16). Remove nuts and disconnect the harness assemblies from switch assembly (16).
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Remove the bolts (18) and switch assembly (16).
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Remove hose assemblies (19), (20), and (21) .
Disconnect the tank heater assemblies from the main wiring harness.
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Drain tank assembly (23) into a suitable container.
Remove strap assemblies (22). Remove tank assembly (23) from the control cabinet.
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Remove tank cap (24) from tank assembly (23).
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Remove cap adapter (25) from tank assembly (23).
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Remove strainer (26) from tank assembly (23).
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Disconnect harness assembly (27) from the temperature sensor. Disconnect harness assembly (28) from the heater group. Disconnect harness assembly (29) from the pressure sensor. Disconnect harness assembly (30) and harness assembly (31) from the solenoid valve groups.
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Disconnect harness assembly (32) from the junction block. Disconnect harness assembly (33) from the pump heater. Disconnect harness assembly (34) and harness assembly (35) from the pump group.
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Remove locknuts (36) and bars (37) from diesel exhaust fluid pump group (38).
Remove diesel exhaust fluid pump group (38) and manifold group (39) as an assembly.
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Remove bolts (40). Disconnect diesel exhaust fluid pump group (38) from manifold group (39).
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Remove solenoid valve group (41), solenoid valve group (43), and the O-ring