Maintenance - Exmark metro 21 Operator's Manual

4. MAINTENANCE

NOTE: Determine the left and right sides of the machine from the normal operating position.
Recommended Maintenance Schedule
Service Interval
Each Use
5 Hours
50 Hours
75 Hours
100 Hours
250 Hours
300 Hours
Storage
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Change the engine oil after the first 5 operating hours.
NOTE: Refer to your engine operator's manual for additional maintenance procedures.
Maintenance Procedure
• Check the engine oil level.
• Check the stopping time of the blade brake. The blade must stop
within 3 seconds of releasing the bail; if it does not; contact an
Authorized Service Dealer for repair.
• Remove grass clippings and dirt from under the housing.
• Clean the discharge tunnel and the discharge tunnel plug.
•
Check the blade and the engine mounting fasteners. Tighten them
if they are loose.
• Change the engine oil (without the oil filter).
• Sharpen or replace the blade; maintain it more frequently if the
edge dulls quickly in rough or in sandy conditions.
• Clean the blade brake clutch shield.
• Check for leaks in the fuel system and/or a deteriorating fuel hose.
Replace parts if necessary.
• Remove grass clippings and debris from under the belt cover.
• Lubricate the pivot arms.
• Adjust the self-propel drive system.
• For Kawasaki Engines: Change the oil filter.
• Inspect the spark plug and replace it if necessary.
• Clean the cooling system; remove grass clippings, debris, or dirt
from the engine air cooling fins and starter. Clean the system more
frequently in dirty or high-chaff conditions.
• Lubricate the gear case.
• For units with a Blade Brake Clutch: Adjust the blade brake cable.
• Service the wheels.
• For Honda Engines: Replace the paper air filter. Replace it more
frequently in dusty operating conditions.
• For Kawasaki Engines: Replace the paper air filter. Replace it
more frequently in dusty operating conditions.
• Empty the fuel tank before repairs as directed or before storage.
CAUTION
POTENTIAL HAZARD
♦ If you leave the wire on the spark plug,
someone could accidentally start the
engine.
WHAT CAN HAPPEN
♦ Accidental starting of the engine could
seriously injure you or other bystanders.
HOW TO AVOID THE HAZARD
♦ Disconnect the wire from the spark plug
before you don any maintenance. Set the
wire aside so that it does not accidentally
contact the spark plug.
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