Check Hydraulic Fluid Level

(Figure 25)

Check the system with the unit cold and parked on a flat, level surface.

Then run the unit for about one minute and recheck the levels.

To Add Hydraulic Fluid:

(Figure 25)

1.Remove the cap from the expansion tank.

2.Fill the expansion tank with 20W-50 engine oil with an SL API classification until oil level reaches the cold fill line on the tank.

3.Install the expansion tank cap and then purge the system. See “Purging the Hydraulic System” on page 27.

The hydraulic fluid should be at the cold fill line of the expansion tank.

Figure 25

Change Hydraulic Fluid and Filter

(Figure 26)

NOTICE: Change hydraulic fluid and filter after the first 75 hours of operation and then every 400 hours. Use 20W-50 engine oil with an SL API classification.

1.Place container under oil filter to catch oil.

2.Remove the filter guard and oil filter from the trans axle.

3.Remove the oil drain plug or fitting from the inlet port and allow the trans axle to drain completely.

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 26.

1

2

3

4

1.Drain Plug

2.Oil Filter

3.Filter Guard

4.Mounting Hardware

Figure 26

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