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For large holes, for instance in very hard concrete, start using a smaller bit for pilot drilling first, then drill to
nominal size.
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Hold the machine firmly with 2 hands. Be aware the drill can jam and because of that machine might suddenly
turn (especially when drilling deep holes).
- Do not apply a lot of pressure on the machine, and let the machine do the work.
• Chipping in concrete and brick (function C and D)
- It’s also possible to use the machine for chipping.
- Only change the function when the motor has come to a standstill.
- Do not apply a lot of pressure on the machine, and let the machine do the work
8. Troubleshooting
By purchasing this rotary hammer, you have acquired a product design to the state of the art and operationally reliable.
Nevertheless, problems or errors may occur.
The following contains description for the removal of possible interference.
Always observe all safety information in these operating instructions.
Problem
Solution aid
Motor stops running
• Connect to power source
• Check all plugs
• Replace or repair the switch
• Replace the brush with a new one
Drill bit doesn’t rotate.
• After rotation has stopped, move the operating mode selector knob
until it engages.
No hammering action and the tool
wobbles.
• Allow tool to reach the minimum operating temperature
• Set operating mode selector knob to hammer drilling
Tool doesn’t produce full power
• Press the control switch as far as it will go
Summary of Contents for T-BH 800 W
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