User Manual
14
In some cases, it is necessary to punch the up of the bit against the crushing position
forcibly in order to begin the striking stroke.
This is not due to malfunction of the tool. It means that the safe guard mechanism
against no-load striking is working.
2. By utilizing the weight of the machine and by firmly holding the hammer with
both hands, one can effectively control the subsequent recoil motion. Proceed at a
moderate work rate, the use of too much force will impair efficiency.
Caution: Sometimes the tool does not begin the striking stroke even when the motor
rotates because the oil has become thick.
If the tool is used at low temperatures or if it is used after a long time idle, the tool shuld
be used running in for five minutes in order to warm it up.
OIL FEEDING
Caution: Prior to oil feeding, always disconnect the plug from the power supply
receptacle.
Since an oil chamber is built in this type Electric hammer, it can be used for
approximately 20 days without supply lubricating oil, assuming that the Hammer is used
continuously 3-4 hours daily. Feed oil into the oil tank as described below before using
this Hammer.
1. Just before no oil is visible in the oil gauge window when the device is held upright,
feed oil without fail.
2. Before feeding oil, use the provided wrench to remove the oil gauge. Be careful not
to lose the rubber packing attached below the oil gauge.
3. Check the oil level once daily, confirming that oil is filled.
4. After feeding oil, securely clamp the oil gauge.
MAINTENANCE AND INSPECTION
1. Inspecting the tool
Since use of a dull tool will cause motor malfunctioning and degraded efficiently,
whet it or replace with a new one without delay when abrasion is noted.
2. Inspecting the mounting screws
Regularly inspect all mounting screws and ensure that they are properly tightened.
Should any of the screws be loose, retighten them immediately. Fail -use to do so
could result in serious hazard.
3. Maintenance of the motor
The motor unit winding is the very “heart” of the power tool. Exercise due care to
ensure the winding does not become damaged and/or wet with oil or water.
4. Inspecting the carbon brushes