Exmark 312 Lawn Mower User Manual


 
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
Interval
Maintenance Procedure
After the rst 5 hours
Change the engine oil.
After the rst 100 hours
Check the wheel hub slotted nut torque specications.
Check the wheel lug nuts.
Check the park brake adjustment.
After the rst 250 hours
Change the hydraulic lter and uid.
Before each use or daily
Check the engine oil level.
Check the mower blades.
Check the safety interlock system.
Check the rollover protections systems (roll bar) knobs.
Check the seat belt.
Check for loose hardware.
Clean the engine and exhaust system area.
Clean the hydro fan cooling guards.
Clean the grass and debris build-up from the machine and cutting deck.
Clean the grass build-up from under the cutting deck.
Every 50 hours
Check the hydraulic oil level.
Check the tire pressures.
Check the condition of the belts.
Check spark arrester (if equipped).
Every 100 hours
Change the engine oil. (May need more often under severe conditions.)
Lubricate the deck lift pivots.
Remove the engine shrouds and clean the cooling ns.
Every 200 hours
Check the spark plugs.
Every 250 hours
Replace the primary air cleaner element — check secondary air cleaner element; replace if
dirty. (May need more often under severe conditions. See the Engine Owner's Manual for
additional information.)
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