Engine Maintenance - Yard-Man 21A-144R401 Operator's Manual

• Push the On/Off switch to Off (O) position to stop
engine and tines and disconnect spark plug to
avoid accidental starting.
• It may be necessary to lay the cultivator back in a
horizontal position on a flat level surface with the
upper handle touching the ground.
• Remove the click pin from each end of the tine shaft
and slide the tines off the shaft.
• Slide new tines on with hubs facing out. The four
tines are marked with letters A and B and an A and
a B tine must be on the same side. See Figure 7.
• Secure new tines to shaft with click pins.
NOTE: It may be necessary to wash the dirt off the tines
and shaft for ease of removal.

Engine Maintenance

Customer Responsibilities
MAINTENANCE
SCHEDULE
Fill Fuel Tank
Check Oil
Change Oil
Clean Air Filter
Check Spark Plug
Check Spark Arrester (if any)
Gas Fill-Up
Refer to the operation section.
Checking Oil
WARNING: To prevent extensive engine
wear and damage to the unit, always
maintain the proper oil level in the
crankcase. Never operate the unit with the
oil level below the bottom of the dipstick.
• Stop engine and allow oil to drain into the
crankcase.
• Lay the cultivator back in a horizontal position on a
flat level surface with the upper handle touching the
ground.
• Keep dirt and debris out of the engine. Clean the
area around the oil fill plug/dipstick before removing
it.
• Remove the oil fill plug/dipstick and wipe off oil.
Reinsert it all the way back in.
• Remove the oil fill plug/dipstick and check oil level.
Oil should be up to the top of the dipstick.
Refer to Figure 3.
B Tine
Hubs
• If the level is low, add a small amount of oil to the oil
fill hole and recheck. Repeat until the oil level
reaches the top of the dipstick. See Figure 8.
O-Ring
Full
NOTE: Make sure the O-ring is in place on the oil fill
plug/dipstick when checking and changing the oil.
Changing Oil
• Remove the oil fill plug/dipstick.
• Tip the unit back or away from the air filter to pour
the oil out of the oil fill hole and into a container.
• Wipe up any oil residue on the unit and clean up
any oil that may have spilled. Dispose of the oil
according to federal, state, and local regulations.
9
A Tine
Click Pin
Figure 7
SERVICE
DATES
Oil Fill
Plug/Dipstick
Figure 8