Maintenance & Adjustments; Periodic Maintenance - Exmark Navigator NAV20KC Operator's Manual

5. MAINTENANCE & ADJUSTMENTS
POTENTIAL HAZARD
♦ While maintenance or adjustments are being made,
someone could start the engine.
WHAT CAN HAPPEN
♦ Accidental starting of the engine could seriously injure
you or other bystanders.
HOW TO AVOID THE HAZARD
♦ Remove the key from the ignition switch 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).
POTENTIAL HAZARD
♦ The engine can become very hot.
WHAT CAN HAPPEN
♦ Touching a hot engine can cause severe burns.
HOW TO AVOID THE HAZARD
♦ Allow the engine to cool completely before service or
making repairs around the engine area.

5.1 PERIODIC MAINTENANCE

5.1.1 Check engine oil level:
a) Stop engine and wait for all moving parts to stop. Make sure unit is on a
level surface.
b) Check with engine cold.
c) Raise hopper.
d) Clean area around dipstick. Remove dipstick and wipe oil off. Reinsert the
dipstick and push it all the way down into the tube. Remove the dipstick
and read the oil level.
e) If the oil level is low, wipe off the area around the oil fill cap, remove cap
and fill to the "FULL" mark on the dipstick. Use oil as specified in Engine
Owner's Manual. DO NOT overfill.
IMPORTANT: DO NOT operate the engine with the oil level below the
"LOW" (or "ADD") mark on the dipstick, or over the "FULL" mark.
5.1.2 Check battery charge:
Allowing batteries to stand for an extended period of time without recharging
them will result in reduced performance and service life. To preserve optimum
battery performance and life, recharge batteries in storage when the open
circuit voltage drops to 12.4 volts.
Note: To prevent damage due to freezing, battery should be fully charged
before putting away for winter storage.
WARNING
WARNING
Service Interval: Daily
Service Interval: Monthly
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