HOOD GP-ENGINE 3976696 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
ZZ 6V-9507 Face Seal Plug (9/16 - 18 THD) 1
6V-9828 Cap Assembly (9/16 - 18 THD) 1
6V-9511 Face Seal Plug (1 3/16 - 12 THD) 3
6V-9832 Cap Assembly (1 3/16 - 12 THD) 3
6V-9512 Face Seal Plug (1 7/16 - 12 THD) 1
6V-9833 Cap Assembly (1 7/16 - 12 THD) 1 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, "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.
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 g01141131
Disconnect harness assembly (1).
Illustration 2 g01141132
Disconnect hose assemblies (4) from piston pump (2).
Remove bolts (3) from piston pump (2). Use two people and remove piston pump (2) from the machine. The weight of piston pump (2) is approximately 30 kg (66 lb).
Remove the O-ring seal from piston pump (2).