Maintenance

Service Air Cleaner

Service Interval: Every 50 hours—Service the air cleaner. (May need more often under severe conditions. See the Engine Owner’s Manual for additional information.)

1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake.

2.See Engine Owner’s Manual for cleaning instructions.

Change Engine Oil

Service Interval: After the first 5 hours

Every 100 hours/Yearly (whichever comes first) (May need more often under severe conditions.)

1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake.

2.Drain oil while engine is warm from operation.

3.The oil drain is located on right hand side of engine. Place pan under machine to catch oil. Fit hose in literature pack over oil drain valve. Rotate valve 1/4 turn counterclockwise and gently pull outward to open valve. Allow oil to drain, then close valve by pushing inward and rotating 1/4 turn clockwise. Remove and retain the hose for future use.

4.Replace the oil filter every other oil change. Clean around oil filter and unscrew filter to remove. Before reinstalling new filter, apply a thin coating of oil on the surface of the rubber seal. Turn filter clockwise until rubber seal contacts the filter adapter then tighten filter an additional 1/2 to 3/4 turn.

5.Clean around oil fill cap and remove cap. Fill to specified capacity and replace cap.

6.Use oil recommended in engine owner’s manual. Do Not overfill. Start the engine and check for leaks. Stop engine and recheck oil level.

Check Hydraulic Oil Level

Service Interval: Every 40 hours

1.Stop engine and wait for all moving parts to stop. Engage parking brake. Allow engine to cool.

2.Clean area around hydraulic expansion reservoir. Oil level should be at the FULL COLD line on expansion reservoir. If not, add oil. Use only Exmark Premium Hydro oil. Replace hydraulic reservoir cap and tighten until snug. Do Not overtighten. Do Not overfill.

Check Tire Pressures

Service Interval: Every 40 hours

1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake.

2.Check tire pressure in drive tires.

3.Inflate drive tires to 13 psi (90 kPa).

4.Semi-pneumatic caster tires do not need to be inflated.

Note: Do Not add any type of tire liner or foam fill material to the tires. Excessive loads created by foam filled tires may cause failures to the hydro drive system, frame, and other components. Foam filling tires will void the warranty.

Check Condition Of Belts

Service Interval: Every 40 hours

1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake.

2.Check under engine deck to check pump drive belt.

3.Remove left and right belt shields on deck and lift up floor pan to inspect deck drive belt.

4.For belt adjustment, see the Pump Drive Belt and Deck Belt Tension Adjustment sections.

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Exmark 977, 820 manual Service Air Cleaner, Change Engine Oil, Check Hydraulic Oil Level, Check Tire Pressures
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977, 820 specifications

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