7
CAUTION
6. When you set the Core Drill vertically and the clutch is off, be careful that the Drill Head could fall
down with sliding due to its own weight.
7. Set the load properly and work efficiently.
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The proper load of the Drill Motor is different from the condition of cutting object, the size of Core Bit, cut-
ting edge, the horsepower of the Drill Motor, the rotation speed and feeding load etc. The drill load setting
can be judged by the worker such as the sound of the Drill Motor, the condition of the rotation of Core Bit,
feeding speed, and the condition of the camber of the pole base etc. Start from the low load, then set the
proper load.
●
When you drill deeply with overload, interference against the drilled core could be generated. Be careful of
load setting.
●
In case you set the drill load forcedly, be careful that the machine will get the overload which will cause the
breakdown.
8. Before starting operation, test PRCD in the following procedures.
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Plug power cord and press green ON(RESET) button. Make certain red lamp is on.
●
Press blue TEST button and make certain red lamp is off.
●
Press green ON(RESET) button again and make certain red lamp is on.
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3
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Notes for Usage of the Reinforced Sensor Mode of Automatic Feeding System EHA
WARNING
1. Do not use except the antiseismic reinforcement construction.
●
Do not use [Reinforced Sensor Mode], because it might cut or penetrate through except the reinforced
steel (diameter is more than 9mm) such as the electronic piping, telephone wiring piping, water pipe, gas
pipe, resin pipe, steel wire, and other.
2. Use the Core Bit more than 25mm and less than 77mm (3”).
●
When you use the Core Bit which is not designated size, the Core Drill might not stop by hitting to the rein-
forced steel during the operation.
3. Do not use the blunt Core Bit.
●
The blade edge of the Core Bit plays a role in tentacle of [Reinforced Steel Detector]. If you use the blunt
Core Bit which is caused by clogging, the detection will be difficult and the Core Drill might not stop even
hitting to the reinforced steel during the operation.
4. Depending on the condition of machine and working place, it will be possible to cut the reinforced
steel, so do not being away from the machine during the operation and control the sound of the drill-
ing, the rotation speed of feeding handle shaft and the color of the cutting water etc.
