Spark Plug - Husqvarna HU725AWD/BBC Manual De Operario

NOTE: Although multi-viscosity oils (5W30, 10W30 etc.)
improve starting in cold weather, these multi-viscosity oils
will result in increased oil consumption when used above
32°F. Check your engine oil level more frequently to avoid
possible engine damage from running low on oil.
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 fi ve (5) hours of continuous use. Tighten oil
plug securely each time you check the oil level.
TO CHANGE ENGINE OIL (See Fig. 17)
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.
CONTAINER
4. Wipe off any spilled oil from lawn 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 over-
fi 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.
MAINTENANCE
FIG. 17
AIR FILTER (See Fig. 18)
Your engine will not run properly and may be damaged
by using a dirty air fi lter. Replace the air fi lter cartridge
every 100 hours of op er a tion or every season, which ev er
occurs fi rst. Service air cleaner more often under dusty
conditions.
TO CLEAN AIR FILTER
1. Loosen screw and tilt cover to re move.
2. Carefully remove cartridge.
3. Clean by gently tapping on a fl at surface. If very dirty,
replace car tridge.
CAUTION: Pe tro leum 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 making sure the
tabs are aligned with the slots in the back plate. Fasten
screw securely.
LIP
CARTRIDGE
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.
14
BACK PLATE
COVER
COVER
FIG. 18
SLOT
TAB