Husqvarna LE389 - Manual (Page 10)

10
GENERAL RECOMMENDATIONS
The warranty on this Edger/Trimmer does not
cover items that have been subjected to op-
erator abuse or negligence. To receive full
value from the warranty, the operator must
maintain the Edger/Trimmer as instructed in
this manual. The above chart is provided to
assist the operator in properly maintaining the
Edger/Trimmer.
LUBRICATION
• After each 25 hours of use of your Edger/
Trimmer, apply light machine oil to all
moving parts, particularly the wheels.
• The oil in the engine crankcase must be
changed after the first 2 hours of opera-
tion and after each 25 hours of use there-
after. See OIL RECOMMENDATIONS in
OPERATIONAL sectional in this manual.
TO CHANGE OIL
• Disconnect the spark plug wire from the
spark plug.
• Remove the oil drain plug as shown in Fig.
1-MAINT and drain the oil into a flat pan.
• After draining all the oil, reinstall the oil
drain plug securely.
NOTE: The oil will drain more freely when the
engine is warm.
VIEW FROM REAR
Oil Drain Plug
FIG. 1-MAINT.
AIR CLEANER
Replace the filter once a year; more often
under dusty or dirty conditions. DO NOT at-
tempt to clean or oil the air filter.
To install a new air filter, do the following:
• Disconnect the spark plug wire from the
spark plug.
• Turn the cover as shown in Fig.-2 MAINT.
to the left counterclockwise and remove the
cover and the air filter from the flange.
• Discard the air filter.
• Clean the cover and the flange thor-
oughly.
• Insert the new air filter into the cover.
• Push the cover firmly against the flange
and turn it to the right clockwise as far as
it will go as shown in Fig. 2-MAINT below.
Be sure the retainers are locked around the
flange.
• Reconnect the spark plug wire.
Turn cover to the left
(counterclockwise)
to remove
Flange
Turn cover to the right
(clockwise) to install
Slot
Tab
Cover
Retainer
Filter
FIG. 2-MAINT.
CAUTION: Never run the engine with-
out the air cleaner element installed. A de-
fective air cleaner can result in loss of engine
power and can cause excessive wear or
damage to the engine components if dirt or
dust is permitted to enter the engine through
the carburetor. A damaged air cleaner, or
one that is clogged with dust or dirt should be
replaced immediately.
SPARK PLUG
Clean the spark plug and reset the gap peri-
odically. Before removing spark plug, clean
the area around its base to prevent dirt from
entering into the engine. Replace the spark
plug if the electrodes are pitted or burned or if
the porcelain is cracked. Clean the spark plug
by carefully scraping the electrodes with a
knife or screwdriver (do not sand blast or use
a wire brush). Be sure the spark plug is clean
and free of foreign material. Check the elec-
trodes gap with a wire feeler gauge and reset
to .030" if necessary. If a new spark plug is
needed, refer to the Engine manual for the
proper replacement spark plug.
Before reinstalling the spark plug, coat the
threads lightly with graphite or light oil to
insure easy removal. Tighten the spark plug
firmly into the engine. If a torque wrench is
available, torque the spark plug to 15 foot-
pounds.