English -8
COOLING FINS
Maintenance Interval
The cylinder cooling fins should be cleaned after every 50
hours of operation, or once a week, whichever comes first.
Air must flow freely around and through the cylinder cooling
fins to prevent engine overheating. Leaves, grass, dirt and
debris buildup on the fins will increase the operating
temperature of the engine, which can reduce engine
performance and shorten engine life.
Cooling Fin Cleaning
1. With the engine at ambient (room) temperature, loosen the
knob at air cleaner cover.
2. Remove the five screws retaining the top cover, then
remove the top cover.
3. Clean all dirt and debris from the cooling fins and from
around the cylinder base.
4. Reinstall the top cover and tighten the knob.
KNOB
AIR CLEANER
COVER
SCREW
SCREW
SPARK ARRESTER
Maintenance Interval
• The spark arrester should be inspected and cleaned after
every 25 hours of use.
• Replace the screen if it cannot be thoroughly cleaned, or if it
is damaged.
Spark Arrester Maintenance
1. With the engine at ambient (room) temperature, loosen the
knob and remove the air cleaner cover (see Cooling Fin
Cleaning).
2. Remove the screw from the muffler.
3. Take the spark arrester out of the muffler, and then clean
by brushing it.
4. Return the spark arrester to the muffler.
5. Tighten the screw securely.
POTENTIAL HAZARD
• Muffler surface becomes hot when Backpack
Blower is in operation and remains hot for some
time after the engine is shut off.
WHAT CAN HAPPEN
• Contact with hot muffler surfaces could cause a
burn.
HOW TO AVOID THE HAZARD
• Make sure the muffler is cool before inspecting and
cleaning the spark arrester.
SCREW
TAIL
SPARK
ARRESTER
MUFFLER
Содержание BR9000
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