SPARK ARRESTER
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.
Maintenance Interval
• The spark arrester should be inspected and cleaned after
every 50 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.
SCREW
SCREW
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.
GUARD
When air flow has dropped down during operation, stop the
engine and inspect the intake guard for blocking by debris.
Cleaning debris from intake guard.
Never use the blower without the GUARD of the blower.
Before each use, check that the GUARD is attached in
place and is free from any damage.
For long-term storage of the Backpack Blower, first perform all regular maintenance procedures and needed repairs. Empty the
fuel tank. Disconnect the fuel supply line from the carburetor and depress the primer bulb until fuel stops discharging from the
fuel-return line.
Start the engine and allow it to run until it stops. Pull the starter cord a few times to remove any excess fuel from the engine.
Remove the spark plug and insert a small amount of oil into the cylinder. Slowly pull the starter cord and bring the piston to a
position closest to the spark plug hole. Re-install the spark plug. Apply a thin coating of oil to all the metal surfaces and store the
Backpack Blower in a dry place.
SPARK
ARRESTER
STORAGE
English -13
MUFFLER AND EXHAUST PORTS
Maintenance Interval
The muffler should be inspected and cleaned after each 50
hours of use.
Muffler Maintenance
The muffler should be removed and serviced after each
one fifty (50) hours of use. At the same time, the exhaust
ports should be cleaned and inspected. An AUTHORIZED
MARUYAMA DEALER should be contacted for this
service.
GENERAL CLEANING AND TIGHTENING
POTENTIAL HAZARD
• When engine is running, fan is rotating and other
parts are moving.
WHAT CAN HAPPEN
• Contact with rotating fan or other moving parts
could cause serious personal injury or death.
HOW TO AVOID THE HAZARD
• Always turn off your Backpack Blower before
you clean or perform any maintenance on it.
The MARUYAMA Backpack Blower will provide maximum
performance for many hours, if it is maintained properly.
Good maintenance includes regular checking of all
fasteners for correct tightness, and cleaning the entire
machine. Contact an authorized MARUYAMA dealer for
additional maintenance suggestions.
GUARD