Trimmer Operation - Maruyama BIG M M23S Manuel De L'utilisateur

When the throttle trigger is released the engine should return to an idle speed which is 2700-3300 rpm
or just below clutch engagement speed. The cutting head must not rotate and the engine should not
stall (stop running) at engine idle speed.
The engine idle speed is adjusted by rotating the
idle speed screw located on the carburetor.
• Turning the idle speed screw in (clockwise)
increases engine speed
• Turning the screw out (counterclockwise)
decreases engine speed.
>> CAUTION
• If idle speed adjustment is necessary and, after adjustment, the cutting head moves or the engine
stalls, STOP USING THE STRING TRIMMER IMMEDIATELY. Contact your local authorized
Maruyama Dealer for assistance and serving.

Trimmer Operation

Before using the String Trimmer, review the section on String Trimmer Safety found on page 8 of this
manual, then check the following for proper operating positioning of the equipment;
1. The String Trimmer should be positioned on the operator's right side.
2. The operator's right hand should be holding the shaft grip, with his/her fingers on the throttle
trigger. The right arm should be slightly bent.
3. The left hand should be holding the loop handle
with the fingers and thumb fully enclosed around
the grip. The left arm should be extended.
Reposition the loop handle up or down the
drive shaft as necessary to attain a comfortable
operating position.
4. The String Trimmer weight should be evenly
distributed between both arms. The head should
be parallel to the ground.
5. Accelerate and hold the engine at cutting speed
before applying the cutting head to the material.
6. Always release the throttle trigger and allow the
engine to return to idle speed when not cutting.
7. Stop the String Trimmer engine when moving
between work sites.
14
HEARING PROTECTION
RIGHT ARM
SLIGHTLY
BENT
HAND HOLDING THROTTLE
GRIP, FINGERS ON THROTTLE
TRIGGER
IDLE SPEED
ADJUSTMENT
SCREW
EYE PROTECTION
SHOULDER HANGING STRAP
LEFT ARM FULLY
EXTENDED, HAND HOLDING
LOOPHANDLE
TRIMMER HEAD NEAR
AND PARALLEL TO
GROUND