308C CR Excavator Hydraulic System – Hydraulic Oil Cooler – Remove

Removal Procedure

Start By:

  1. Remove the refrigerant condenser. Refer to Disassembly and Assembly, “Refrigerant Condenser – Remove” for the proper procedure.

------ WARNING! ------

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.

  1. Release the pressure in the hydraulic system. Refer to Disassembly and Assembly, “Hydraulic System Pressure – Release”.

    Illustration 1 g00884524

    Rear view of the machine

  1. Remove bolts (1) and disconnect hose assembly (2) from hydraulic oil cooler (3).
  1. Remove bolts (4) and disconnect hose assembly (5) .

    Illustration 2 g00884556

    Front view of the hydraulic oil cooler

  1. Remove bolts (6) and remove hydraulic oil cooler (3) .