To Change Engine Oil; To Clean Air Filter; Spark Plug; In-Line Fuel Filter - Husqvarna XT722FE Operator's Manual

ENGINE
LUBRICATION
Use only high quality detergent oil rated with API service
classification SG–SL. Select the oil's SAE viscosity grade
according to your expected operating temperature.
Change the oil after every 25 hours of operation or at least
once a year if the lawn mower is not used for 25 hours in
one year. Check the crankcase oil level before starting
the engine and after each five (5) hours of continuous use.
Tighten oil plug securely each time you check the oil level.
TO CHANGE ENGINE OIL (See Fig. 12)
NOTE: Before tipping lawn mower to drain oil, empty fuel
tank by running engine until fuel tank is empty.
1. Disconnect spark plug wire from spark plug and place
wire where it cannot come in contact with plug.
2. Remove engine oil cap; lay aside on a clean surface.
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.
4. Wipe off any spilled oil from mower or side of engine.
5. Slowly pour oil down the oil fill 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 overfill,
or engine will smoke heavily from the muffler on startup.
8. Always be sure to retighten dipstick before starting engine.
9. Re con nect spark plug wire to spark plug.
AIR FILTER (See Fig. 13)
Your engine will not run properly and may be damaged by
using a dirty air filter. Replace the air filter every 100 hours of
operation or every season, whichever occurs first. Service
air cleaner more often under dusty conditions.
MAINTENANCE
CONTAINER
FIG. 12

TO CLEAN AIR FILTER

1. Remove cover.
2. Carefully remove cartridge.
3. Clean by gently tapping on a flat surface. If very dirty,
replace cartridge.
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.
CARTRIDGE
COVER
MUFFLER
Inspect and replace corroded muffler as it could create a
fire 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
first. Spark plug type and gap setting are shown in the
"PROD UCT SPEC I FI C A TIONS" section of this manual.
IN-LINE FUEL FILTER (See Fig. 14)
The fuel filter should be replaced once each season. If fuel
filter becomes clogged, ob struct ing fuel flow to car bu re tor,
re place ment is re quired.
1. With engine cool, remove filter and plug fuel line sec-
tions.
2. Place new fuel filter 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
11
SLOT
BACK PLATE
FIG. 13
CLAMP
FIG. 14