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Attention:
If the percussion mechanism does not start despite the engine turning, the oil thickened. If
the device is used at low temperatures or after being stored for longer periods of time, it should first run
for 5 min to warm up.
Refilling oil (Fig. 4 and 5)
Attention:
Before refilling oil, always unplug the mains plug from the socket. For a daily use of 3–
4 hours, the percussion drill can be used for about 20 days without refilling oil.
•
Refill the oil before the oil level reaches its minimum.
•
Remove the oil level indicator before refilling. Be careful not to lose the rubber under the indi-
cator.
•
Check the oil level daily to ensure that there is always enough oil.
•
After refilling, reconnect the oil level indicator.
Maintaining and servicing
Checking the attachment
The use of a blunt attachment leads to the engine malfunctioning and thus to performance loss. As soon
as you notice the wear, replace or sand the attachment.
Maintaining the fixing screws
Regularly check that all fixing screws are tight. Tighten the screws if they are loose. Failure to do so
may result in dangerous situations.
Maintaining the motor
The electric motor is the "heart" of the device. Always make sure that the electric motor is never dam-
aged and/or gets wet with oil or water.
Checking the carbon brushes (Fig. 6)
Carbon brushes, which are wearing parts, are used in this tool. If the carbon brushes are used up to the
end, motor damage can occur. If the automatic stop for the carbon brushes is switched on, the motor
stops automatically. Replace both carbon brushes with new ones. Make sure that the carbon brushes
can move freely in the holders. Steps to change: Remove the carbon brushes by removing the cover.
Cleaning and checking the oil level
Always disconnect the mains plug before working on the demolition hammer!
1. Clean the machine housing only with a slightly damp cloth or absorbent fleece.
2. When cleaning, make sure that no liquid penetrates the inside of the housing.
3. Clean the tool holder from dust and grease at regular intervals.
4. After prolonged non-use or commissioning at sub-zero temperatures, first allow the demolition
hammer to run for a few minutes at idle in order to achieve good distribution of the lubricant in
the machine.
© by WilTec Wildanger Technik GmbH
http://www.WilTec.de
http://www.aoyue.eu
http://www.teichtip.de
Item 61202
Page 8
06
2021-1
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