McCulloch LT25NCOP, Operator'S Manual, Page: 8 / 336

MAINTENANCE
WARNING:
Disconnect the spark
plug before performing maintenance except
for carburetor adjustments.
CHECK FOR LOOSE
FASTENERS AND PARTS
S
Spark Plug Boot
S
Air Filter
S
Housing Screws
S
Assist Handle Screw
S
Debris Shield
CHECK FOR DAMAGED OR
WORN PARTS
Contact an authorized service dealer for re-
placement of damaged or worn parts.
S
ON/OFF Switch -- Ensure ON/OFF switch
functions properly by moving the switch to
the OFF position. Make sure engine stops;
then restart engine and continue.
S
Fuel Tank -- Discontinue use of unit if fuel
tank shows signs of damage or leaks.
S
Debris Shield -- Discontinue use of unit if
debris shield is damaged.
INSPECT AND CLEAN UNIT AND
LABELS
S
After each use, inspect complete unit for
loose or damaged parts. Clean the unit and
labels using a damp cloth with a mild deter-
gent.
S
Wipe off unit with a clean dry cloth.
CLEAN AIR FILTER
A dirty air filter decreases engine perform-
ance and increases fuel consumption and
harmful emissions. Always clean after every
5 hours of operation.
1. Clean the cover and the area around it to
keep dirt from falling into the carburetor
chamber when the cover is removed.
2. Remove parts as illustrated.
NOTE:
Do not clean filter in gasoline or other
flammable solvent to avoid creating a fire haz-
ard or producing harmful evaporative emis-
sions.
3. Wash the filter in soap and water.
4. Allow filter to dry.
5. Replace parts.
Air Filter Cover
Air Filter
Button
REPLACE SPARK PLUG
Replace the spark plug each year to ensure
the engine starts easier and runs better. Set
spark plug gap at 0,6 mm. Ignition timing is
fixed and nonadjustable.
1. Twist, then pull off spark plug boot.
2. Remove spark plug from cylinder and dis-
card.
3. Replace with Champion spark
plug and tighten securely with a 19 mm
socket wrench.
4. Reinstall the spark plug boot.
SERVICE AND ADJUSTMENTS
REPLACING THE LINE
1. Press the tabs on the side of the trimmer
head and remove cover and spool.
Tab
Tab
8
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