10
GB
2. Adjusting RPM
The trigger switch allows the speed to be
increased up to Maximum.
1. Light pressure on the trigger switch results in low
speed rate.
2. Further pressure on the trigger switch increases
the speed rate.
3. Safety Clutch
The safety clutch will actuate when a certain torque
level is reached. The motor will disengaged from
the output shaft. When this happens, the bit will stop
turning. The feature prevents the gearing and motor
form stalling.
4. Operating Mode
The operating mode of the tool is selected with the
change lever.
1. To drill into stone and concrete and the like, position
the change lever in “Hammer Drilling” mode as
illustrated in the Figure 10.
In “Hammer Drilling” mode, the tool makes drilling
and blowing at the simultaneously.
Use drill bit for “Hammer Drilling” mode.
2. For chiseling and breaking operation, position the
change lever in “hammer” mode as illustrated in
the figure 11. In “Hammering” mode, the tool
makes only blowing operation without revolution
of bit. Use bull point or chisel for operation in
“Hammering” mode.
3. For drilling or tapping into wood, metal or plastic
materials, position the change lever in “drilling”
mode as illustrated in Figure 12. In “Drilling” mode
the tool makes only drilling without blowing.
Use the drill chuck with SDS-plus Shank for
“Drilling” Mode.
5. Adjusting Chisel Angle
When performing chisel operation, chisel angle can
be set at 32.7�/11 for convenience. To change bit
angle, put change lever in “ ” and turn the bit
clockwise or counterclockwise to a position. When
performing plain chisel operation, recover the change
lever to “Hammer” mode again after adjusting angle,
and then start operation.
8.Maintenance
1. Checking the Tool (bit)
Using the worn-off bit will cause overloading the
motor and reduce work efficiency. Either sharpen the
tool or replace with a new one.
2. Checking the Screws
Check if any screw is loosened. Loosened screw
must be tightened firmly.
3. Grease
For remarkably decrease of the drill speed, check
grease and change it, if necessary. Only grease
for the hammer drill recommended by authorized
Keyang Service Center should be used.
4. Carbon Brush
Disposable carbon brush is used in the motor.
Heavily worn carbon brush may result in motor
failure. Replace the worn carbon brush with new
one.
5. Storing after Use
6. X attachment cord
If the supply cord of this power tool is damaged, it
must be replaced by a specially prepared cord
available through the service organization.
7. Cleaning
For safe and proper working, always keep the
machine and ventilation slots clean.
8. After-sales Service and Customer
Assistance
Our after-sales service responds to your questions
concerning maintenance and repair of your product
as well as spare parts.
Disconnect the plug from the power supply
before making maintenance.
Store the tool in a dry place out of reach of the
children.
As soon as the safety clutch actuates, switch
off the tool immediately
Figure 10
Figure 11
Figure 12
Figure 13
Figure 9
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