Exmark Lazer Z Air-cooled series Operator's Manual page 30

4.1.7 Check rollover protections systems (roll bar) pins:
Service Interval: Daily
a) Make sure latch pin and hair pin are fully installed and lanyard is in good
condition.
4.1.8 Check for loose hardware:
Service Interval: Daily
a) Stop engine, wait for all moving parts to stop, and remove key.
b) Visually inspect machine for any loose hardware or any other possible
problem. Tighten hardware or correct the problem before operating.
4.1.9 Service air cleaner:
a) Stop engine, wait for all moving parts to stop, and remove key.
b) Loosen retaining clips and remove air cleaner compartment cover.
c) Remove paper element. Check the condition of the paper element.
Replace if dirty, bent or damaged.
d) Check the condition of the inner element. Replace whenever it appears
dirty, typically every other time the paper element is replaced. Clean the
base around the inner element before removing, so dirt does not get into
the engine.
e) DO NOT wash or use pressurized air to clean paper element or inner element.
f) Reinstall elements. Position the cover so that the rubber dust ejector is
pointing downward and secure with retaining clips.
4.1.10 Check Spark Arrester:
Kohler EFI engines only:
POTENTIAL HAZARD
♦ Hot exhaust system components may ignite gasoline
vapors even after the engine is stopped.
♦ Hot particles exhausted during engine operation may
ignite flammable materials.
WHAT CAN HAPPEN
♦ Fire may result in personal injury or property damage.
HOW TO AVOID THE HAZARD
♦ Do NOT refuel or run engine unless spark arrester is
installed.
a) Shut off engine, remove key, and wait for all moving parts to stop.
b) Wait for muffler to cool.
c) If any breaks in the screen or welds are observed, replace arrester.
d) If plugging of the screen is observed, remove arrester and shake loose particles
out of the arrester and clean screen with a wire brush (soak in solvent if
necessary). Re-install arrester on exhaust outlet.
4.1.11 Change engine oil:
Service Interval: 100 hrs.
NOTE: Change oil and filter after first five (5) hrs. of operation.
a) Stop engine, wait for all moving parts to stop, and remove key.
Service Interval: 50 hrs.
More often under severe conditions.
See Engine manual for additional information.
Service Interval: 50 hours
WARNING
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