GOV & FUEL INJ PUMP GP 9N3757 - Caterpillar

Removal Procedure
Start By:
Remove the gear pump. Refer to Disassembly and Assembly, "Gear Pump - Remove and Install".
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 attachments have been lowered, 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.
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.
Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, all hoses and all tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.
Illustration 1 g00642268
Loosen clamp (2) and disconnect hose (1) .
Illustration 2 g00642289
Remove the wire tie-wrap. Disconnect electrical connector (3) .
Illustration 3 g00642328
Remove four bolts (4) and clamp (6). Remove hose (5). Reposition hose (5) to the side.
Disconnect hose (7) .
Illustration 4 g00642395
Disconnect hose (8) and (9) .
Illustration 5 g00642442
Disconnect hose (10) .
Remove four bolts (11) and clamp (12). Remove hose (13). Reposition hose (13) to the side.
Illustration 6 g00642455
Disconnect line (14) .
Illustration 7 g00642465
Support the piston pump with a nylon strap and a suitable lifting device. Remove two bolts (15). Remove the piston pump from the engine. The weight of the hydrostatic piston pump is 47.6 kg (105 lb).
Illustration 8 g00642474
Suspend the piston pump within the engine compartment. Turn the piston pump in order to allow access to the bottom of the piston pump. Remove hose (16) from the bottom of the piston pump.
Remove the piston pump from the engine compartment.