13
Checking and adjusting the idling speed
The cutting blade should not when the control lever is fully released.
– Idle speed should be set to 3,000 rpm.
If necessary, correct it by means of the idle screw (the cutting
blade must not run when the engine is on idle).
•
Clockwise : for faster rate of revolution
•
Counter-clockwise : for slower rate of revolution Check that
there is sufficient difference between idling and clutch
engagement speed to ensure that the cutting tool is at a
standstill while the engine is idling. (If necessary, reduce
idling speed.) If the tool still continues to run under the idling
conditions, consult your nearest authorized service agent.
•
The clutch should engage at minimum 3,750 rpm.
•
Check the functioning of the STOP switch, the lock-off lever,
the control lever, and the lock button.
Cleaning of air cleaner - Every 8 hours (Daily)
– Remove the air cleaner cover.
– Push the choke lever up (arrow), to prevent dirt particles from
entering the carburetor.
– Take out the sponge element, wash it in lukewarm water and dry
it completely.
– After cleaning, put back the sponge element and the air cleaner
cover.
NOTE:
If there is excessive dust or dirt adhering to the air cleaner,
clean it every day. A clogged air cleaner may make it
difficult or impossible to start the engine or increase the
engine rotation speed which could cause damage.
Checking the spark plug - Every 8 hours (Daily)
– Only use the supplied universal wrench to remove or to install the
spark plug.
– The gap between the two electrodes of the spark plug should be
0.6 to 0.7mm. If the gap is too wide or too narrow, adjust it. If
the spark plug is clogged with carbon or fouled, clean it
thoroughly or replace it. Use an exact replacement.
Supply of grease and lubricant
–
Supply grease from the grease nipple every 15 operating hours.
(Shell Alvania No.3 or equivalent)
The amount of grease for each supply is about 20cc.
(Once grease is supplied regularly as mentioned above, grease
will come out from the end of the gear case (root of the cutting
edge) in operation just after supply of grease. Confirm this
phenomenon as a guide to grease supply.)
NOTE:
Be sure to observe the specified time and amount of
grease supply.
If the grease supply is not made at the specified interval or
if the amount of grease supplied is not sufficient, the
machine may fall into a trouble because of lack of grease.
