DRIVE GP-PUMP 1250814 - Caterpillar

Removal Procedure
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.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Do not allow dirt to enter the fuel system. Thoroughly clean the area around a fuel system component that will be disconnected. Fit a suitable cover over disconnected fuel system component.
Note: The aftercooler has been removed for photographic purposes only.
Illustration 1 g00553070
Disconnect hose assemblies (1) and tube assemblies (2).
Remove the O-ring seals. Cap all male fittings and plug all female fittings immediately after you remove the hose assemblies and the tube assemblies.
Illustration 2 g00553072
Disconnect tube assembly (3). Remove the O-ring seals. Cap all male fittings and plug all female fittings immediately after you remove the tube assembly.
Remove bolt (5), the washer, and the nut. Remove clamp (4).
Remove bolt (6), the washer, and the spacer. Remove clamp (7). Remove tube assembly (3).
Illustration 3 g00553073
Cut wire ties (8) and (9).
Illustration 4 g00553074
Disconnect injection actuation pressure control valve (10).
Mark engine oil temperature sensor connector (11) and engine oil pressure sensor connector (12) for identification purposes.
Disconnect engine oil temperature sensor connector (11) and engine oil pressure sensor connector (12).
Illustration 5 g00553076
Remove three bolts (13) and the washers.
Illustration 6 g00553109
Attach a strap and a suitable lifting device to unit injector hydraulic pump (14). The weight of the unit injector hydraulic pump is approximately 30 kg (66 lb).
Illustration 7 g00553111
Remove two bolts (15) and the washers. Remove unit injector hydraulic pump (14). Remove the O-ring seals.