Purging the Hydraulic System

4.Clean the filter mounting surface and then lubricate rubber gasket on new oil filter with clean hydraulic oil.

5.Spin new oil filter onto filter housing until it makes contact. Tighten oil filter another 3/4 turn.

6.Install the filter guards removed in step 2. Tighten the mounting screws to 5.38 lbf-ft (7.3 N•m).

7.Fill with 20W-50 engine oil with an SL API classification until oil appears at the bottom of the drain plug (about 2 quarts per trans axle). Install the drain plug and tighten it to 14.97 lbf-ft (20.3 N•m).

8.Repeat steps 1–7 for the other trans axle.

9.Follow the instructions in “To Add Hydraulic Fluid:” on page 25.

1.Drain Plug

2.Oil Filter

3.Filter Guard

4.Mounting Hardware

Figure 26

WARNING: This adjustment requires operating the engine. Use extreme care to avoid contact with moving parts and hot surfaces. Be sure rear of unit is well supported and secure before starting engine.

1.With the unit up to and facing a wall, jack up the unit so that both drive wheels are off the ground.

2.Disengage the parking brake and put the trans axle bypass levers in the neutral position (see MOVING UNIT MANUALLY on page 16).

3.Start the engine and slowly move the steering levers in forward and reverse five or six times.

4.Stop the engine and put the trans axle bypass levers in the drive position (see MOVING UNIT MANUALLY on

page 16).

5.Start the engine and slowly move the steering levers in forward and reverse five or six times.

6.Stop the engine, check the oil level and add oil as needed.

7.Repeat steps 2–6 until the trans axles operate smoothly in forward and reverse at normal speeds without excessive noise.

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