308C CR Excavator Hydraulic System – Gear Pump (Pilot) – Install

Installation 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, “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.

    Illustration 1 g00883400

  1. Position coupling (5) in the auxiliary pump.

    Illustration 2 g00877725

  1. Position pilot pump (4) and install bolts (3). Tighten bolts (3) to a torque to 32 ± 4 N·m (25 ± 3 lb ft).
  1. Connect hose assemblies (2) and (1) .