Husqvarna HU675HWT Operator's Manual page 10

ENGINE
Read the mantenance section of your
engine manual.
LUBRICATION
TO CHANGE ENGINE OIL
NOTE: An oil change is not required but
if you desire to change the oil follow the
procedure below.
NOTE: Before tipping trimmer to drain oil,
drain 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 spark plug.
2. Remove engine oil cap; lay aside on a
clean surface.
3. Tip trimmer on its side as shown and
drain oil into a suitable container.
Rock trimmer back and forth to re-
move any oil trapped inside of engine.
4. Wipe off any spilled oil on trimmer or
on side of engine.
5. Fill engine with oil (See "ADD OIL " in
the Operation section of this manual).
6. Replace engine oil cap.
7. Reconnect spark plug wire to plug.
AIR FILTER
Your engine will not run properly and may
be damaged by using a dirty air filter.
Retainer
clip
Container
Replace the air filter every 100 hours of
op er a tion or every season, which ev er oc-
curs first. Service air cleaner more often
under dusty conditions. Do not wash air
filter. Refer to engine manual.
MUFFLER
Inspect and replace corroded muffler as it
could create a fire hazard and/or dam age.
SPARK ARRESTOR
Your muffler is equipped with a special
spark arrestor screen which restricts the
flow of hot particles out of the muffler. Hot
particles my cause fire if they contact dry
and combustible material. Never operate
this equipment without the spark arrestor
in place.
The spark arrestor screen should be
cleaned annually by removing the arrestor
from the engine and brushing it with a
wire brush. A blocked screen may cause
the engine to run hot and lead to engine
failure.
TO REMOVE THE SPARK ARRESTOR:
1. Using a 1/4" wrench or nut driver
remove the (1) screw that retains the
arrestor to the muffler. Slide arrestor
screen out of the muffler exhaust tube.
2. Inspect the screen for any plugging
or damage. If the screen is plugged,
brush with a stiff wire brush. A dam-
aged arrestor should be replaced.
Installation is the reverse of removal,
tighten screw to 24 in-lbs (2.7 Nm). Do
not overtighten.
Screen
Screw
10
Spark
arrestor