
13
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
•
Remove grass clippings and dirt from under the housing.
5 Hours
•
Check the blade and the engine mounting fasteners. Tighten them if they are
loose.
25 Hours
•
Lubricate the front and rear wheels (Model 22242 only).
•
Lubricate the rear-height adjustors and the front wheels (Model 22243 only).
50 Hours
•
Check the stopping time of the blade brake. The blade must stop within three
seconds of releasing the bail; if it does not, contact an Authorized Service Dealer
for repair.
•
Change the engine oil.
1
•
Clean the air filter. Clean it more frequently in dusty operating conditions.
•
Clean, inspect, and gap the spark plug; replace it if necessary.
•
Sharpen or replace the blade; maintain it more frequently if the edge dulls
quickly in rough or in sandy conditions.
•
Check for leaks in the fuel system and/or a deteriorating fuel hose. Replace
parts if necessary.
•
Lubricate the wheels.
•
Adjust the self-propel drive cable (Model 22243 only).
100 Hours
•
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.
1
Change the engine oil after the first 5 hours.
Important
Refer to your engine operator’s manual for additional maintenance procedures.
Caution
If you leave the wire on the spark plug, someone could accidently start the engine and seriously
injure you or other bystanders.
Disconnect the wire from the spark plug before you do any maintenance. Set the wire aside so
that it does not accidentally contact the spark plug.
Checking the Engine Oil Level
Before you use the lawn mower, ensure that the oil level is
between the Add and the Full marks as shown on the
dipstick (Fig. 11). If the oil level is below the Add mark,
add oil. Refer to Filling the Crankcase with Oil on
page 8.