Maruyama BC2301RS, Owner'S/Operator'S Manual

Page: 16 / 28

＿
15
＿
Idle Speed Adjustment
This Trimmer/Brushcutter is equipped with non-adjustable fuel mixture carburetor.
The idle speed is the only adjustment for the operator.
The cutting attachment may be moving during idle speed
adjustment. Wear the recommended personal protective
equipment and observe all safety instructions.
Keep hands and body away from the attached tool.
When the throttle trigger is released, the engine should re-
turn to an idle speed. The correct speed for models
BC2301RS, BC2601RS, BC3021RS are 2700 - 3300 min
-1
and for models BC4321H-RS is 2400 - 2800 min
-1
(or just
below the clutch engagement speed).
The attached tool must not move and the engine should not
stall (stop running) at engine idle speed.
To adjust the engine idle speed, rotate the idle speed adjust-
ment screw on the carburetor.
・
Turn the idle speed screw in
(
clockwise
)
to increase the engine idle speed.
・ Turn the screw out
(
counter-clockwise
)
to decrease the engine idle speed.
If idle speed adjustment is necessary, and after adjustment the cutting attachment
rotates or the engine stalls, stop using the Trimmer/Brushcutter immediately!
Contact your local authorized MARUYAMA Dealer for assistance and servicing.
WARNING
POTENTIAL HAZARD
・ Engine must be running to make carburetor adjustments.
・
When engine is running, attached tool and other parts are moving.
WHAT CAN HAPPEN
・ Contact with moving attached tool or other moving parts could cause serious personal injury or
death.
HOW TO AVOID THE HAZARD
・ Keep hands, feet and clothing away from attached tool and other moving parts.
・
Keep all bystanders and pets away from unit while making carburetor adjustments.
Idle Speed
Adjustment Screw