HEATER-AIR 3054691 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool    Part Number    Part Description    Qty    
ZZ     6V-9510     Face Seal Plug (1 - 14 THD)     1    
6V-9831 Cap Assembly (1 - 14 THD)     1    
6V-9511 Face Seal Plug (1 3/16 - 12 THD)     5    
6V-9832 Cap Assembly (1 3/16 - 12 THD)     5    Note: SERVICE DATA: TOOLING (ZZ) WILL NOT BE IDENTIFIED IN PHOTOGRAPHS IN THE REMOVAL OR THE INSTALLATION. THIS TOOLING IS SHOWN IN ORDER TO ASSIST THE EXPERIENCED SERVICEMAN.Note: Put identification marks on all hoses, on all hose assemblies, on all wires, and on all tube assemblies for installation purposes. Plug all hose assemblies and all tube assemblies. This helps to prevent fluid loss, and this helps to keep contaminants from entering the system.
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, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Personal injury can result from hydraulic oil pressure and hot oil.Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.
Drain the hydraulic oil from the hydraulic oil tank into a suitable container. Refer to Operation and Maintenance Manual for the correct procedure.
Illustration 1 g01140334
Disconnect hose assemblies (2) from piston pump (1) .
Illustration 2 g01140335
Disconnect hose assemblies (3) from piston pump (1) .
Illustration 3 g01140338
Disconnect hose assemblies (4) from piston pump (1) .
Illustration 4 g01140339
Disconnect harness assembly (5) and harness assemblies (6) from piston pump (1) .
Illustration 5 g01140340
Attach a suitable lifting device to piston pump (1). Remove bolts (7) and remove piston pump (1) from the machine. The weight of piston pump (1) is approximately 77 kg (170 lb).
Remove the O-ring seal from piston pump (1) .