14
Checking and adjusting the idling speed
The cutting blade should not run when the control lever is fully released.
- Idle speed should be set to 3,000 min
-1
.
- 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 sufcient 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 min
-1
.
• Check the functioning of the I-O Switch, the lock-off lever, the control lever, and
the lock button.
CLEANING OF AIR CLEANER
DANGER: INFLAMMABLES STRICTLY PROHIBITED
Interval of Cleaning and Inspection: Daily (every 10 operating hours)
- Turn the choke lever to the full close side, and keep the carburetor off from dust
or dirt.
- Turn the air cleaner cover-xing bolts.
- Pull the cover lower side and detach the air cleaner cover.
- If oil adheres to the element (sponge), squeeze it rmly.
- For heavy contamination:
1) Remove the element (sponge), immerse it in warm water or in water-diluted
neutral detergent, and dry it completely.
2) Clean the element (felt) with gasoline, and dry it completely.
- Before attaching the element, be sure to dry it completely. Insufcient drying of
the element may lead to difcult startup.
- Wipe out with waste cloth, oil adhering around the air cleaner.
- Immediately after cleaning is nished, attach the cleaner cover and tighten it with
xing bolts. (In remounting, rst place the upper claw.)
Points in Handling Air Cleaner Element
- Clean the element several times a day, if excessive dust adheres to it.
- If operation continues with the element remaining not cleared of oil, oil in the
air cleaner may fall outside, resulting in oil contamination.
Element (Sponge)
Fixing bolt
Element (felt)
Upper Claw
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