MTD 21A-120R000 - Manual (Page 13)

WARNING: To avoid serious personal
injury, always turn the unit off, allow it
to cool and disconnect the spark plug
before you clean or perform any
maintenance on it.
Lubrication
Gearbox-The gearbox is pre-lubricated and sealed at
the factory.
Trouble Shooting
Refer to the trouble shooting chart for more informa-
tion.
Engine
IMPORTANT: Never run your engine without air
cleaner completely assembled.
Air Filter Maintenance
1. Place the choke control in the PARTIAL choke
position (B).
NOTE: The choke control must be in the PARTIAL
choke position (B) to remove the air filter/muffler
cover. See Figure 23.
2. Remove the four (4) screws securing the air
filter/muffler cover. See Figure 23. Use a flat blade
or # T20 Torx bit screwdriver.
3. Pull the cover from the engine. Do not force.
4. Remove the air filter from behind the air filter/
muffler cover. See Figure 24.
4. Wash the filter in detergent and water. Rinse the
filter thoroughly. Squeeze out excess water. Allow
it to dry completely.
5. Apply enough clean SAE 30 oil to lightly coat the
filter. See Figure 25.
6. Squeeze the filter to spread and remove excess
oil. See Figure 25.
13
Figure 23
Figure 24
SECTION 6: MAINTAINING YOUR CULTIVATOR
Maintenance Schedule
These required maintenance procedures should be performed at the frequency stated in the table. They should
also be included as part of any seasonal tune-up.
FREQUENCY MAINTENANCE REQUIRED
Before Starting Engine Fill fuel tank with correct oil and fuel mixture.
Every 10 Hours Clean and re-oil air filter.
Every 50 Hours or Seasonal Check spark plug condition and gap.
Choke Control
Screws Screws
Partial Choke
Position (B)
Air Filter
Figure 25