Exmark Commercial 21 4500-686 Rev. B - Manual (Page 23)

Maintenance
Maintenance Service
Interval
Maintenance Procedure
Every 250 hours
• Replace the air filter elements (ECSHN21 Units). (May need more often if they are
damaged or excessively dirty.)
• Replace the air filter elements (ECXHNBBC21 and ECXHN21 Units). (May need more
often if they are damaged or excessively dirty.)
Every 300 hours
• Replace the paper air filter (Kawasaki Units). (May need more often in dusty conditions.
See the Engine manual for additional information.)
Yearly or before storage • Empty the fuel tank before repairs as directed or before storage.
Periodic Maintenance
Check Engine Oil Level
Service Interval: Before each use or daily
1. Stop engine and wait for all moving parts to stop.
Make sure unit is on a level surface.
2. Check with engine cold.
3. Clean area around dipstick. Remove dipstick and
wipe oil off. Reinsert the dipstick and push it all
the way down into the tube. Do Not screw into
place. Remove the dipstick and read the oil level.
Figure 19
Honda Engine
1. Lower limit mark 3. Dipstick
2. Upper limit mark
Figure 20
Kawasaki Engine
1. Dipstick 3. Add
2. Full
4. 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. Exmark 4-Cycle Premium
Engine Oil is recommended; refer to the Engine
Owner’s manual for an acceptable alternative. 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.
Checking the Blade Brake
Clutch (Blade Brake Clutch
Only)
Service Interval: Before each use or daily
Refer to Checking the Blade Brake Clutch in the
Operating Instructions section.
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