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7.7 Preparation for water supply
CAUTION
Ensure that the water hose is not entangled with the core bit or other moving parts.
Ensure that the water hose has an enough length for the working stroke of the carriage
block.
Ensure that the water hose is not damaged.
Check the water supply system to ensure there are no leaks.
Never allow water to enter the drill motor.
NOTE
The maximum water pressure is 3 bar.
Use only water (tap water or fresh water).
Maximum water temperature: 40 degrees C (104 degrees F).
Follow the procedure below.
1) Connect a water hose from a tap or a water supplying device to the Gardena connector / water
cock of the drill motor.
2) Turn the swivel ring and adjust the hose position properly.
8. OPERATION
8.1 Precautions for the drilling operation
DANGER
The following instructions are essential safety measures that you must follow.
Improper use may lead to death or serious injury to the operators and/or others.
Ensure the following before plugging in.
8.1.1 General
Ensure that the operator has read and understood this manual.
Ensure that that the operator wears proper protective clothing such as a hard hat, protective
glasses, hearing protection, dust mask, protective gloves, and non-skid safety shoes. Long hair
must be tied up.
Depending on the applicable standard, take care not to stay in the environment which exceeds
the allowable sound level for a long time.
Confirm that the core bit is attached to the spindle properly. When it is misaligned or loose, attach
it again.
Take care not to get your face close to the air outlet.
Do not insert your hands, arms, face, and other body parts in the working range of the carriage
block.
8.1.2 Electrical safety
Never use this machine without a PRCD, GFCI or RCD.
Do not drill in an upward from the horizontal. Water may leak in the motor.
When drilling walls, a proper water collection device must be used.
Check that the power supply voltage is the voltage shown on the model name plate label of the
power tool. If the voltage is low, the current likely increases therefore the circuit protector trips
frequently.
Secure enough current for the machine.
Use a correctly functioning generator or transformer.
When powered by a generator or transformer, the generator or transformer’s power output must
be at least 4.0 kVA (100 V), 3.5 kVA (110-120 V) or 5.2 kVA (220-240 V).
Make sure that there is no damage on the power plug, cord, and power outlet. If there is any
damage, contact a Shibuya authorized dealer for repair.
Never turn on the drill motor while the extension cords are circularly bundled. The circularly
bundled extension cords may act as a coil which generates a magnetic field and heat.
Before connecting to the power supply, make sure that the main switch is in OFF (0) position. If
the main switch is in ON (I) position, the drill motor unintentionally starts off when applying current,
which may lead to injury to the operator or others.
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