
9
GROUNDING INSTRUCTION
4.0 GROUNDING INSTRUCTION
This machine must be connected to a properly grounded outlet. If the tool should electrically malfunction or breakdown,
grounding provides a low resistance path to carry electricity away from the operator, reducing the risk of an electric
shock.
WARNING!!
Improper connection of the grounding wire can result in the risk of an electric shock.
Check with a qualified electrician if you are in doubt as to whether the outlet is properly grounded. Do not
modify the plug provided with the machine. If the cord or plug is damaged, have it repaired by a Shibuya’s
authorized service center, before use. If the plug will not fit the outlet, have a proper outlet installed by a
qualified electrician.
RESIDUAL CURRENT DEVICE (RCD)
5.0 RESIDUAL CURRENT DEVICE (RCD)
According to the European standards EN61029-1 and IEC 1029-2-6, the electrical connection of diamond core drills
with water supply must be operated via a residual current device (RCD or PRCD).
DANGER!!!
Note that you have a potential hazard that the drill may cut a live electric cable hidden in the drilling object. To
reduce shock hazards, use Residual Current Device (RCD), or Ground Fault Circuit Interrupter (GFCI), or
Insulation Transformer. Connection to main power supply must be made using one of these devices.
FEATURE OF THIS MACHINE
6.0 FEATURE OF THIS MACHINE
[1]
Circuit Protector (Switch)
This machine is equipped with a Circuit Protector to reduce the risk of damage of the Drill Motor. The Circuit
Protector trips when the Drill Motor is overloaded. Too much feeding pressure will cause the Circuit Protector to
trip frequently. And frequent trip may lead to damage on the Drill Motor. Try to operate so as not to make the
Circuit Protector trip.
CAUTION!
Do not fit any Circuit Protector of wrong specification that may cause damage of the Drill Motor. Use only
Circuit Protector of Shibuya’s genuine spare parts. Regarding the specification of the Circuit Protector, refer to
the spare parts list attached in the end of this manual.
[2] Clutch
System
This machine has an Inner Clutch System to protect gear parts. If Core-Bit is suddenly jammed due to the
presence of piece of iron or similar materials, Spindle and gear parts are subject to severe shock. The Clutch
System plays an important role in such situations by relieving the shock. The Clutch System only operates if the
gear parts are subject to potentially damaging shock.
[3] Swivel
Ring
This machine has a Swivel Ring for feed water. This makes it possible to feed
water from any angle.
Swivel Ring
CAUTION!
The long time operation or operation at heavy-duty construction site would make the Clutch System loose. If
so, have it repaired by Shibuya’s authorized service center. Do not try to tighten it by yourself.
Содержание R1511
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