Exmark 850000 AND HIGHER Checking the Hydraulic Oil Level, Change the Hydraulic System Filter

Maintenance

in-lb) torque. Wipe up any excess oil on the frame (Figure 20 ).

Note: Dispose of the used oil at a recycling center.

9.Apply a thin film of clean oil to the rubber gasket on the new filter.

10.Install the replacement oil filter to the mounting pad. Turn the oil filter clockwise until the rubber gasket contacts the pad, then tighten the filter an additional 1/2 to 3/4 turn (Figure 21).

11.Slowly pour approximately 80% of the specified oil into the filler tube—use oil recommended in the Engine Owner’s Manual.

12.Install the oil fill cap/dipstick and push firmly into place.

13.Check the oil level (Figure 19); refer to Checking the Oil Level.

14.Slowly add additional oil to bring it to the full mark. Do Not overfill.

15.Install the oil fill cap/dipstick and push firmly into place.

16.Start the engine and check for leaks.

Checking the Hydraulic Oil Level

Service Interval: Before each use or daily

Check expansion tank and if necessary add Exmark Premium Hydro oil to the FULL COLD line.

Figure 22

1. Engine 2. Expansion tank

Change the Hydraulic System Filter

Service Interval: After the first 100 hours

Every 500 hours thereafter (Every 250 hours if using Mobil 1 15W50)

1.Stop engine, wait for all moving parts to stop, and allow engine to cool. Remove key and engage parking brake.

2.Locate the two filters under the transmissions. Remove filter guards.

3.Carefully clean area around filters. It is important that no dirt or contamination enter hydraulic system.

4.Unscrew filters to remove and allow oil to drain from drive system.

Important: Before reinstalling new filters, apply a thin coat of Exmark Premium Hydro oil on the surface of the filters rubber seal.

Turn the filters clockwise until rubber seal contacts the filter adapter then tighten the filter an additional 3/4 to 1 full turn.

5.Remove the vent plug on each transmission and fill through expansion reservoir, when oil comes out of vent reinstall plug.

Exmark Premium Hydro Oil is recommended. Refer to the chart for an acceptable alternative:

Hydro Oil	Change Interval
Exmark Premium Hydro	500 Hours
Oil (Preferred)
Mobil 1 15W50	250 Hours

Torque plugs to 180 in-lb (244 N-m). Continue to add oil until it reaches the FULL COLD line on the expansion reservoir.

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