Operation - Makita HR3000C Instruction Manual

OPERATION
Hammer drilling operation
CAUTION:
When the bit begins to break through concrete or if the bit strikes reinforcing rods em-
bedded in concrete, the tool may react dangerously. Maintain good balance and safe foot-
ing while holding the tool firmly with both hands
to
prevent dangerous reaction.
Set the change lever and the shift lever to
t h e v l symbol. Position the bit
at
the loca-
tion for the hole, then pull the trigger. Do
not force the tool. Light pressure gives
best results. Keep the tool in position and
prevent it from slipping away from the
hole.
Do not apply more pressure when the hole
becomes clogged with chips or particles.
Instead, run the tool at an idle, then
remove from the hole.
By
repeating this
several times, the hole will be cleaned out.
Torque limiter
The torque limiter will actuate when a certain torque level is reached. The motor will dis-
engage from the output shaft. When this happens, the bit will stop turning.
CAUTIO N :
As soon as the torque limiter actuates, switch off the tool immediately. This will help pre-
vent premature wear of the tool.
Chipping/Scaling/Demolition
Set the change lever and the shift lever to
the symbol. Hold the tool firmly with both
hands. Turn the tool on and apply slight
pressure on the tool so that the tool will
not bounce around, uncontrolled. Pressing
very hard on the tool will not increase the
efficiency.
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