KEY 4F2291 - Caterpillar

Assembly 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.
Illustration 1 g06091298
Install pressure sensor group (56) in manifold group (54). Tighten pressure sensor group (56) to a torque of 10 2 N m (90 18 lb in).
Install solenoid valve group (57) in manifold group (54). Tighten solenoid valve group (57) to a torque of 105 10 N m (77 7 lb ft).
If required, orient solenoid valve group (57) . Tighten the nut on the rear of the solenoid valve to a torque of 5.4 0.6 N m (48 5.25 lb in).
Install regulator (58) in manifold group (54). Tighten regulator (58) to a torque of 140 14 N m (103 10 lb ft).
Illustration 2 g06091291
Install manifold group (54) from the control cabinet. Install bolts (55).
Illustration 3 g06091280
Install wiring harness assembly (53) in the control cabinet. Connect to the existing connectors and secure the harness with cable straps.
Illustration 4 g06092777
Install diaphragm (52) onto the pump group.
Illustration 5 g06092776
Install pump head (50) and bolts (51) onto the pump group.
Illustration 6 g06092778
Tighten bolts (51) in the sequence shown.
Illustration 7 g06092774
Install valve assembly (48) and valve assembly (49) into diesel exhaust fluid pump group (38).Note: Ensure that the flow indicators on the valve assemblies are pointed in the correct direction.
Illustration 8 g06091251
Install solenoid valve group (41) and solenoid valve group (43) in the manifold group. Tighten solenoid valve groups to a torque of 130 10 N m (96 7 lb ft).
If required, orient solenoid valve groups . Tighten the nut on the rear of the solenoid valve to a torque of 5.4 0.6 N m (48 5.25 lb in).
Install temperature sensor group (45) in the manifold group. Tighten temperature sensor group (45) to a torque of 48 5 N m (35 3.5 lb ft).
Install pressure sensor group (44) in the manifold group. Tighten pressure sensor group (44) to a torque of 20 3 N m (177 26.5 lb in).
Install adapter assembly (42) and adapter assembly (47) in the manifold group .
Install heater assembly (46) in the manifold group.
Illustration 9 g06092518
Connect diesel exhaust fluid pump group (38) to manifold group (39). Install bolts (40).
Illustration 10 g06092779
Tighten bolts (40) in the sequence shown.
Illustration