GB-12
LRT2300
9. Maintenance
9. Maintenance
WARNING
Make sure that the engine has stopped and is cool
before performing any service to the machine. Con-
tact with moving cutting head or hot muffler may
result in a personal injury.
AIR CLEANER
• Check the air cleaner every 25 hours of use or more
frequently if used under dusty conditions. A clogged
air filter may increase fuel consumption while cutting
down the engine power. Never operate the trimmer
without the air filter or with a deformed filter element
because unfiltered dusty air will quickly ruin the
engine.
• CLEANING AIR FILTER:
1. Remove the air cleaner cover by pulling the tab on
bottom and take out the filter element.
2. Use neutral detergent and warm water to clean the
filter element. After cleaning, air dry the element
completely and moisten with a small amount of mo-
tor oil.
3. Place the filter element into the air cleaner housing
and press the cover against the housing until it
clicks.
FUEL FILTER
• When the engine runs short of fuel supply, check the
fuel cap and the fuel filter for blockage.
(1) Fuel filter
SPARK PLUG
• Starting failure and mis-firing are often caused by a
fouled spark plug. Clean the spark plug and check
that the plug gap is in the correct range. For a re-
placement plug, use the correct type specified by
ZENOAH.
0.6 - 0.7 mm
• REPLACEMENT PLUG IS A Champion RJ6CY.
IMPORTANT
• Note that using any spark plug other than those
designated may result in the engine failing to operate
properly or in the engine becoming overheated and
damaged.
• To install the spark plug, first turn the plug until it is
finger tight, then tighten it a quarter turn more with a
socket wrench.
TIGHTENING TORQUE:
9.8 ~ 11.8 N.m.
(1 ~ 1.2 kg.m.)
MUFFLER
WARNING
• Inspect periodically, the muffler for loose fasten-
ers, any damage or corrosion. If any sign of ex-
haust leakage is found, stop using the machine
and have it repaired immediately in the repair
specialty store.
• Note that failing to do so may result in the engine
catching on fire.
