1
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 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 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-fixing bolts.
- Pull the cover lower side and detach the air cleaner cover.
- If oil adheres to the element (sponge), squeeze it firmly.
- 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. Insufficient drying of
the element may lead to difficult startup.
- Wipe out with waste cloth, oil adhering around the air cleaner.
- Immediately after cleaning is finished, attach the cleaner cover and tighten it with
fixing bolts. (In remounting, first 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
Содержание EH7500S
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