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muffler, then reinstall and tighten the two socket
head screws.
6.
Reinstall the cylinder cover and the air filter
cover.
Exhaust Muffler
Maintenance Interval
The muffler should be inspected and cleaned after each
100 hours of use.
Muffler Maintenance
1.
With the engine at ambient (room) temperature,
loosen the knob and remove the air filter cover.
2.
Twist the high tension lead boot on the spark plug
back and forth a couple of times to loosen the
boot, then pull the boot off of the spark plug.
3.
Loosen the knob and lift off the cylinder cover.
4.
Remove the spark arrester (see spark arrester
maintenance), Clean the muffler with a stiff brush.
IMPORTANT: Don't use solvent for cleaning
inside of muff ler, because of the catalytic
converter in muffler.
Be careful not to allow any dirt or debris to fall
into the exhaust port, as this can cause engine
damage.
5.
Reinstall the spark arrester and tail onto muffler,
then reinstall and tighten the two socket head
screws.
6.
Reinstall the cylinder cover and the air filter
cover.
Gearcase
Maintenance Interval
The gearcase should be inspect after each 30 hours of
use.
Gearcase Lubrication
Attaching Shaft
Boss Adapter
The gearcase should be checked for lubrication after
each 30 hours of use.
Grease fittings are installed.
Use #2 lithiumbase bearing lubricant.
General Cleaning and Tightening
POTENTIAL HAZARD
• When engine is running, Edger blade is
rotating and other parts are moving.
WHAT CAN HAPPEN
• Contact with rotating Edger blade or
other moving parts could cause serious
personal injury or death.
HOW TO AVOID THE HAZARD
• Always turn off your Edger before you
clean or perform any maintenance on it.
The MARUYAMA Edger will provide maximum
performance for many, many hours if it is maintained
properly. Good maintenance includes regular checking
of all fasteners for correct tightness, and cleaning the
entire machine.
— US-21 —
Grease Fitting
Gearcase
WARNING
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