Exmark 920 manual Recommended Maintenance Schedules

Maintenance

Maintenance

Note: Determine the left and right sides of the machine from the normal operating position.

WARNING

While maintenance or adjustments are being made, someone could start the engine. Accidental starting of the engine could seriously injure you or other bystanders.

Remove the key from the ignition switch, engage parking brake, and pull the wire(s) off the spark plug(s) before you do any maintenance. Also push the wire(s) aside so it does not accidentally contact the spark plug(s).

WARNING

The engine can become very hot. Touching a hot engine can cause severe burns.

Allow the engine to cool completely before service or making repairs around the engine area.

Recommended Maintenance Schedule(s)

Maintenance Service	Maintenance Procedure
Interval
After the first 5 hours	•	Change the engine oil.
After the first 100 hours	• Check the wheel hub slotted nut torque specifications.
	• Check the wheel lug nuts.
After the first 250 hours	•	Change the hydraulic filter.
	• Check the engine oil level.
	•	Check the mower blades.
	• Check the safety interlock system.
	• Check the rollover protections systems (roll bar) pins.
	• Check the seat belt.
Before each use or daily	•	Check for loose hardware.
	• Check engine coolant level.
	• Clean the engine cooling system.
	• Clean the engine and exhaust system area.
	• Clean the grass and debris build-up from the machine and cutting deck.
	• Clean the grass build-up from under the cutting deck.
	• Check the hydraulic oil level.
	• Check the tire pressures.
Every 40 hours	• Check the condition of the belts.
	• Grease the height adjustment shaft bearings.
	• Grease the rear deck struts.
	• Drain fuel filter/water separator.
	• Service the air cleaner. (May need more often under severe conditions. See the Engine
Every 50 hours		Owner’s Manual for additional information.)
	• Check spark arrester (if equipped).
	• Clean the engine cooling system.
Every 100 hours	•	Change the engine oil. (May need more often under severe conditions.)
	• Lubricate the brake handle pivot.
Every 160 hours	•	Lubricate the brake rod bushings.
	• Lubricate the motion control bronze bushings.

28