Scheppach BHS650 Originalbetriebsanleitung Seite 29

Necessary repairs or maintenance work is carried
out before using the hedge trimmer.
Lubricate transmission
Lubricate the transmission every 20 operating hours.
1. Apply the grease gun to the grease nipple (10).
2. Squeeze some grease into it.
Adjusting the idle speed (Fig. 10)
If the cutting device continues to run when idle, the
idle speed must be corrected.
1. Let the motor warm up for 3-5 minutes (no high
motor speeds!).
2. Turn the set screw (C):
Clockwise
- Idle speed increases (+)
Counter clockwise
- Idle speed decreases (-)
Contact the manufacturer if the cutting device still
continues to run with the motor at idle.
Do not work with the hedge trimmer again under any
circumstances!
Cleaning or replacing the air filter (Fig. 6)
Clean the air filter of dust and dirt regularly to avoid
- starting difficulties,
- performance losses,
- too much fuel consumption.
Clean the air filter approx. every 8 operating hours,
more often in particularly dusty conditions.
1. Set the start lever (choke) (4) to "Cold start" so
that no particles of dirt get into the carburettor.
2. Remove the air filter cover (8).
3. Remove the air filter (D) from the foam.
4. Wash the air filter in lukewarm soapy water. Do
not blow out the particles of dirt, there is a danger
of eye injuries!
5. Clean the inside of the air filter with a brush.
6. Allow the air filter to dry and reinsert it again.
7. Attach the air filter cover again.
Replace the air filter regularly.
Damaged air filters must be replaced immediate-
ly.
Clean or replace the fuel filter
Check the fuel filter (E) if necessary. A contaminated
fuel filter hinders the fuel supply.
Open the tank cover (12) and pull the fuel filter
through the opening using a wire hook.
• Light contamination
- Remove the fuel filter from the fuel line and clean
the filter in cleaning solvent
• Heavy contamination
- Replace the fuel filter
Clean or replace the spark plug
(Fig. 2/7)
Do not touch the spark plug (F) or the spark plug con-
nector (16) while the motor is running. High voltage!
Danger of burning if motor is hot. Wear safety gloves!
Check the spark plug and the gap of the electrodes
regularly.
Proceed as follows:
1. Remove the spark plug connector from the spark
plug.
2. Unscrew the spark plug with the supplied spark
plug wrench.
The electrode gap must be 0.6 to 0.7 mm.
Clean the spark plug if it is contaminated.
Replace the spark plug:
- Once a month in the event of regularly use
- If the insulating body is damaged
- In the event of heavy electrode erosion
- In the event of heavily contaminated or oily elec-
trodes
-
Checking the ignition spark (Fig. 2, 7)
1. Remove the spark plug connector from the spark
plug.
2. Unscrew the spark plug with the supplied spark
plug wrench.
3. Unscrew the spark plug.
4. Insert the spark plug connector firmly.
5. Push the spark plug against the motor housing
using insulated tongs (not in the vicinity of the
plug hole).
6. Slide the on/off switch to the on "I" position.
7. Pull the start cable firmly by the starter handle.
A spark must be visible between the electrodes
when functioning properly.
Silencer / outlet opening (Fig. 3)
Do not retighten the silencer screws if the motor is
still hot.
1. Regularly check whether the screws (G) of the
silencer (H) have come loose or not. If they are
loose, tighten them hand-tight.
2. Clean the outlet opening (K) regularly.
Care
Clean the hedge trimmer carefully after each use so
that it keeps functioning properly.
Wear protective gloves when cleaning the cutting de-
vice!
• Clean the housing with a soft brush or a dry cloth.
Water, cleaning agents and polish must not be
used.
• Ensure that the ventilation slots for cooling the mo-
tor are free (danger of overheating).
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