Exmark Metro 21 - Manual (Page 18)

14
Maintenance
Note: Determine the left and right sides of the machine from the normal operating position.
Recommended Maintenance Schedule
Maintenance Service
Interval
Maintenance Procedure
Each Use
•
Check the engine oil level. Refer to Checking the Engine Oil Level on page 15.
•
Check the stopping time of the blade brake. The blade must stop within
3 seconds of releasing the control bar; if it does not, contact an Authorized
Service Dealer for repair.
•
Remove grass clippings and dirt from under the housing. Refer to Cleaning
under the Housing on page 15.
•
Clean the discharge tunnel and the discharge tunnel plug. Refer to Cleaning the
Discharge Tunnel and Plug on page 16.
•
Inspect the air cleaner elements. Refer to Servicing the Air Cleaner on page 16.
5 Hours
•
Check the blade and the engine mounting fasteners. Tighten loose fasteners.
25 Hours
•
Clean the air cleaner elements; clean them more frequently in dusty operating
conditions. Refer to Servicing the Air Cleaner on page 16.
•
Lubricate the pivot arms (self-propel model only). Refer to Lubricating the Pivot
Arms on page 19.
50 Hours
•
Change the engine oil. 1 Refer to Changing the Engine Oil on page 19.
•
Sharpen or replace the blade; maintain it more frequently if the edge dulls
quickly in rough or in sandy conditions. Refer to Maintaining the Blade on
page 17.
•
Remove grass clippings and debris from under the belt cover. Refer to Cleaning
under the Belt Cover on page 18.
•
Have an authorized engine servicing dealer check and adjust the flywheel brake
pad.
75 Hours
•
Adjust the self-propel drive system (self-propel model only). Refer to Adjusting
the Self-propel Drive on page 19.
100 Hours
•
Inspect, clean, and adjust the spark plug; replace it if necessary. Refer to
Servicing the Spark Plug on page 20.
•
Lubricate the gear case (self-propel model only). Refer to Lubricating the Gear
Case on page 20.
•
Adjust the blade brake cable. Refer to Adjusting the Blade Brake Cable on
page 20.
•
Service the wheels. Refer to Servicing the Wheels on page 21.
•
Have an authorized engine servicing dealer check and adjust the idle speed,
check and adjust the valve clearance, and clean the fuel tank and filter.
250 Hours
•
Replace the air cleaner elements; replace them more frequently in dusty
operating conditions. Refer to Servicing the Air Cleaner on page 16.
•
Replace the spark plug. Refer to Servicing the Spark Plug on page 20.
•
Have an authorized engine servicing dealer check for leaks in the fuel system
and/or a deteriorating fuel hose. Replace parts if necessary.
1 Change the engine oil after the first 5 operating hours.
Important Refer to your engine owner’s manual for additional maintenance procedures.