Maintenance; To Clean Air Filter; In-Line Fuel Filter - Husqvarna 7021KP Operator's Manual

3. Tip lawn mower on its side as shown and drain oil into
a suitable container. Rock lawn mower back and forth
to remove any oil trapped inside of engine.
CONTAINER
4. Wipe off any spilled oil from mower or side of engine.
5. Slowly pour oil down the oil fi ll spout, stopping every
few ounces to check the oil level with the dipstick.
6. Stop adding oil when you reach the FULL mark on the
dipstick. Wait a minute to allow oil to settle.
7. Continue adding small amounts of oil, rechecking the
dipstick until oil level settles at FULL. DO NOT overfi ll,
or engine will smoke heavily from the muffl er on startup.
8. Always be sure to retighten oil dipstick before starting
engine.
9. Re con nect spark plug wire to spark plug.
AIR FILTER (See Fig. 11)
Your engine will not run properly and may be damaged by
using a dirty air fi lter. Replace the air fi lter every 100 hours of
operation or every season, whichever occurs fi rst. Service
air cleaner more often under dusty conditions.

TO CLEAN AIR FILTER

1. Remove cover.
2. Carefully remove cartridge.
3. Clean by gently tapping on a fl at surface. If very dirty,
replace cartridge.
CARTRIDIGE SLOT

MAINTENANCE

FIG. 10
BACK
PLATE
COVER
FIG. 11
CAUTION: Petroleum solvents, such as
ker o sene, are not to be used to clean
car tridge. They may cause de te ri o ra tion
of the cartridge. Do not oil car tridge.
Do not use pres sur ized air to clean or
dry car tridge.
4. Install cartridge, then replace cover.
IN-LINE FUEL FILTER (See Fig. 12)
The fuel fi lter should be replaced once each season. If fuel
fi lter becomes clogged, ob struct ing fuel fl ow to car bu re tor,
re place ment is re quired.
1. With engine cool, remove fi lter and plug fuel line sec-
tions.
2. Place new fuel fi lter in position in fuel line with arrow
pointing towards carburetor.
3. Be sure there are no fuel line leaks and clamps are
properly positioned.
4. Immediately wipe up any spilled gasoline.
CLAMP
FUEL
FILTER
MUFFLER
Inspect and replace corroded muffl er as it could create a
fi re hazard and/or damage.
SPARK PLUG
Replace spark plug at the beginning of each mowing season
or after every 100 hours of operation, whichever occurs
fi rst. Spark plug type and gap setting are shown in the
"PROD UCT SPEC I FI CA TIONS" section of this manual.
CLEANING
IMPORTANT: FOR BEST PERFORMANCE, KEEP MOWER
HOUSING FREE OF BUILT-UP GRASS AND TRASH. CLEAN
THE UNDERSIDE OF YOUR MOWER AFTER EACH USE.
CAUTION: Disconnect spark plug wire
from spark plug and place wire where
it cannot come in contact with plug.
• Clean the underside of your lawn mower by scraping
to remove build-up of grass and trash.
• Clean engine often to keep trash from accumulating.
A clogged engine runs hotter and shortens engine life.
• Keep fi nished surfaces/wheels free of all gasoline, oil, etc.
• With the exception of the water washout port (if
equipped), we do not recommend using a garden
hose to clean the outside of your lawn mower unless
the elec tri cal system, muffl er, air fi lter and carburetor
are covered to keep water out. Water in engine can
result in shortened engine life.
12
CLAMP
FIG. 12