Air Filter; Fuel Filter - Maruyama M42BK-QC Manuel Du Propriétaire

● T urn the idle speed screw in (clockwise) to increase
the engine idle speed.
● T urn the screw out (counterclockwise) to decrease
the engine idle speed.
If idle speed adjustment is necessary, and after adjust-
ment the Attached Tool rotates/moves or the engine
stalls, stop using the Multi-Cutter immediately!
Contact your local authorized MARUYAMA Dealer for
assistance and servicing.

Air Filter

Maintenance Interval
● T he air filter should be cleaned daily, or more often
when working in extremely dusty conditions.
● R eplace after every 100 hours of operation.
Air Filter Cleaning
1. Loosen the knob and remove the air filter cover.
2. Remove the foam element and filter screen from
the air filter body.
3. Clean the foam element and filter screen with warm,
soapy water. Let the screen and 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.
Air Filter Cover
Knob
Foam Element
— US-20 —

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.
Fuel Filter Replacement
The fuel filter is attached to the end of the fuel pick-up
hose inside the fuel tank.
To replace the fuel filter:
1. Make sure the fuel tank is empty.
2. Remove the fuel cap.
3. Using a wire hook, gently pull the fuel filter out
through the fuel filler opening. Use caution not to
"fishhook" the fuel hose. Replace immediately if
punctured!
4. Grasp the fuel hose next to the fuel filter fitting
and remove the filter, but do not release the hose.
5. While still holding on to the fuel hose, attach the
new fuel filter.
6. Drop the new fuel filter back into the fuel tank.
7. Make sure that the fuel filter is not stuck in a cor-
ner of the tank, and that the fuel hose is not dou-
bled over (kinked) before refueling.
Fuel Filter
Fuel Pick-up Hose
Wire