Maintenance; Recommended Maintenance Schedule(S) - Exmark NAVIGATOR Operator's 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).

Recommended Maintenance Schedule(s)

Maintenance Service
Interval
After the first 5 hours
After the first 50 hours
After the first 100 hours
Before each use or daily
Every 40 hours
Every 50 hours
Every 80 hours
Every 100 hours
Every 160 hours
Maintenance Procedure
• Change the engine oil.
• Change oil in all three gearbox housings.
• Change the hydraulic filter and fluid.
• Check the wheel hub locknuts torque specification.
• Check the wheel lug nut torque specification.
• Check the engine oil level.
• Check the mower blades.
• Check the safety interlock system.
• Check for loose hardware.
• Grease the front caster wheel hub.
• Remove accumulated debris from engine (see Cleaning section.)
• Clean the grass and debris build-up from the machine.
• Clean the grass and debris build-up from the cutting deck.
• Clean the grass build-up from under the deck.
• Check the hydraulic oil level.
• Check the tire pressures.
• Check the condition of the belts.
• Grease the drive shaft.
• Service the air cleaner. (May need more often under severe conditions. See the Engine
Owner's Manual for additional information.)
• Remove engine shrouds and clean cooling fins (see Cleaning section.)
• Change the engine oil. (May need more often under severe conditions.)
• Check oil in all three gearbox housings.
• Grease the deck flip-up.
• Grease the pivot arm tubes.
• Lubricate the brake handle pivot.
• Lubricate the brake rod bushings.
• Lubricate the steering linkage rod ends.
• Lubricate hopper switch actuator
• Check the spark plugs.
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.
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