Air Filter; Maintenance Interval; Air Filter Cleaning; Fuel Filter - Maruyama M LINE MT23L Manual Del Propietário

The cutting head may be rotating/moving during idle
speed adjustment. Wear the recommended personal
protective equipment and observe all safety instruc-
tions. Keep hands and body away from the cutting
head.
When the throttle trigger is released, the engine should
return to an idle speed between 2700 and 3300 RPM,
or just below the clutch engagement speed. The
Attached Tool must not rotate/move and the engine
should not stall (stop running) at engine idle speed.
To adjust the engine idle speed, rotate the idle speed
adjustment screw on the carburetor.
• Turn the idle speed screw in (clockwise) to
increase the engine idle speed.
• Turn the screw out (counterclockwise) to decrease
the engine idle speed.
If idle speed adjustment is necessary, and after
adjustment the cutting head rotates or the engine
stalls, stop using the Trimmer immediately!
Contact your local authorized MARUYAMA Dealer
for assistance and servicing.
Idle Speed
Adjustment Screw

Air Filter

Maintenance Interval

• The air filter should be cleaned daily, or more
of ten when work i ng i n ext remely dust y
conditions.
• Replace after every 100 hours of operation.

Air Filter Cleaning

Air Filter Cover
Knob
1. Loosen the knob and remove the air filter cover.
2. Remove the foam element from the air filter body.
3. Clean the foam element with warm, soapy water.
Let element dry completely.
4. Apply a light coat of motor oil (SAE 30 or equiva-
lent viscosity) to the foam element and squeeze
out all excess oil.
5. Reassemble the foam element to the air filter
body.
6. Reinstall the air filter cover and tighten the knob.

Fuel Filter

Maintenance Interval
The fuel filter should be replaced after every 100 hours
of operation.
Fuel filters needing more frequent replacement may
indicate debris in fuel tank.
— US-17 —
Foam Element