259D Skid Steer Loaders Machine Systems – Gear Pump – Remove and Install – Standard Flow

Removal Procedure

Start By:

  1. Release the hydraulic system pressure.
  2. Tilt the cab.

------ 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 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.


  1. Drain the hydraulic tank. Refer to Operation and Maintenance Manual, "Hydraulic System Oil - Change" for the correct draining and filling procedures.

    Illustration 1g03386672

  1. Disconnect hose assembly (1), hose assembly (2), and hose (3) .

    Illustration 2g03386674

  1. Remove bolts (4) and the washers from gear pump assembly (5) .

  1. Remove gear pump assembly (5) from the drive pump.

Installation Procedure

  1. Install gear pump assembly (5) in the reverse order of removal.

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