DRYER-AIR 5385727 - Caterpillar

Release the hydraulic pressure in the machine. Refer to the above listed documents for the correct procedure for machine on which you are working.
Apply vacuum pressure to the hydraulic tank. For the correcr procedure, refer to the first step in the removal procedure for the bulldozer lift cylinder in the above listed documents.
Remove the retaining bolts from the grill doors. Open the grill doors. Save the retaining bolts.
Illustration 1 g02694082
Remove the debris guards, and the p-clips from both sides of the fan support assembly (7). Save all of the parts.
Illustration 2 g02694096
Use a suitable lifting device to support the fan spider. The approximate weight of the fan spider is 57 kg (126 lb). Remove the eight bolts (8) and eight washers that attach the fan spider to the fan adapter. Place the fan spider out of the way. Discard the hardware.
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.
Remove the two hoses that are connected to the hydraulic fan piston motor. Cap the two hoses and the two connections on the hydraulic fan piston motor.
Illustration 3 g02694156
Use a suitable lifting device to support the hydraulic fan piston motor, the fan adapter, and the fan support assembly. The weight of the parts is approximately 102 kg (225 lb). Remove the bolts and washers that attach the fan support assembly to the machine. Remove the parts from the machine. Save the bolts and washers.
Illustration 4 g02694216
Remove bolt (9) and retainer (10) that attach the fan adapter (11) to the hydraulic fan piston motor. Save the bolt and retainer.
Use a puller to remove fan adapter (11) from the hydraulic fan piston motor. Refer to the above listed removal process for the hydraulic fan piston motor for the required tooling.
Illustration 5 g02694236
Slide seal guard assembly (1) onto the pump shaft and housing.
Illustration 6 g02694258
Install the fan adapter (11) onto the pump shaft and seal guard assembly (1). Refer to Illustration 4. Use bolt (9) and retainer (10) that were saved in Step 8 to attach the adapter to the pump shaft.
Use a suitable lifting device to install the hydraulic fan piston motor, the fan adapter, and the fan support assembly into the machine. The weight of the parts is approximately 102 kg (225 lb). Use the hardware saved in Step 7 to attach the parts to the machine
Illustration 7 g02694281
Use a suitable lifting device to position the fan spider to the hydraulic fan piston motor. The approximate weight of the fan spider is 57 kg (126 lb). Use four bolts (3) and four hard washers (4) to attach the fan spider to the adapter. Install the bolts and hard washers in the positions shown in the illustration.
Illustration