Maintenance; Recommended Maintenance Schedule(S) - Exmark NAVIGATOR NV640KC Operator's Manual

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 100 hours
After the first 250 hours
Before each use or daily
Every 40 hours
Every 50 hours
Every 80 hours
Every 100 hours
Every 160 hours
Every 500 hours
Yearly
Maintenance Procedure
• Change the engine oil.
• Check the wheel hub locknuts torque specification.
• Check the wheel lug nut torque specification.
• Change the hydraulic filter.
• 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.
• Check the hydraulic oil level.
• Check the tire pressures.
• Check the condition of the belts.
• 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.)
• Lubricate the brake handle pivot.
• Lubricate the brake rod bushings.
• Lubricate the steering linkage rod ends.
• Lubricate hopper actuator
• Check the spark plugs.
• 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.
• Lubricate grease fittings.
• Lubricate the rear caster wheel hubs.
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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Maintenance