Exmark Navigator 0 - Manual (Page 22)

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 first 5 hours • Change the engine oil.
After the first 100 hours
• Check the wheel hub locknuts torque specification.
• Check the wheel lug nut torque specification.
After the first 250 hours • Change the hydraulic filter.
Before each use or daily
• Check the engine oil level.
• Check the safety interlock system.
• Check for loose hardware.
• Remove accumulated debris from engine (see Cleaning section.)
• Clean the grass and debris build-up from the machine.
Every 40 hours
• Check the hydraulic oil level.
• Check the tire pressures.
• Check the condition of the belts.
Every 50 hours
• Service the air cleaner. (May need more often under severe conditions. See the Engine
Owner’s Manual for additional information.)
Every 80 hours • Remove engine shrouds and clean cooling fins (see Cleaning section.)
Every 100 hours • Change the engine oil. (May need more often under severe conditions.)
Every 160 hours
• Lubricate the brake handle pivot.
• Lubricate the brake rod bushings.
• Lubricate the steering linkage rod ends.
• Lubricate hopper actuator
• Check the spark plugs.
Every 500 hours
• Change the hydraulic filter (Every 250 hours/yearly if using Mobil 1 15W50)
• Check the wheel hub locknuts torque specification.
• Check the wheel lug nut torque specification.
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