8
THE SWITCH
The machine has a lockable trigger switch. Squeeze the trigger to start
the machine. To lock the switch on, press the lock button while holding
the trigger switch on. To release, squeeze the trigger and release.
WARNING: Never lock the switch on when drilling hand-held. Only
lock the switch on when mounted to a rig.
OVERLOAD PROTECTION AND OVERHEAT PROTECTION
Indicator Light:
The LED load indicator light will glow green when the load is within the normal range. When load is
approaching overload, the indicator light will flash red.
Overload:
If the excessive load is sustained too long, the motor will shut down completely. and the indicator light will
glow solid red. In this case, the motor must be restarted by turning OFF and then back ON the switch.
Overheat Thermal Protection:
If the temperature of the motor gets too high, the thermal protection will shut the motor down. and the
indicator light will glow solid red. When this happens, do not immediately put a load on the motor after
restarting. Always run the machine at no load for a few minutes to return to a normal operating temperature
before continuing.
CAUTION: The motor will be damaged if it is repeatedly overloaded or overheated. Always cool the
motor by running at no load for a few minutes whenever it stops from either overheat or overload.
SAFETY CLUTCH
This machine is equipped with a mechanical clutch to protect the operator and machine from excessive torque
forces. After the clutch slips many times, it will become worn and slip at lower and lower torque levels. When
this happens, it must be serviced by an authorized service provider. The recommended torque of the clutch nut
is 21 Nm.
DIAMOND CORE DRILLING
1.
Very gently begin the cut. If holding by hand, use the optional centering pilot, or start the cut by
approaching at an angle of about 30 degrees to the cutting surface. (A large piece of wood with a large V
notch cut in it will help prevent the bit from wandering at the beginning.) Once about a third of the arc is
cut, straighten the bit to the correct perpendicular angle while keeping enough feed pressure on the bit
to prevent it from wandering.
2.
Once in the cut, use steady feed pressure .
3.
When breaking through, hold the machine tightly and reduce feed pressure .
WARNING: Always keep your face away from the machine.
Trigger Switch
Lock Button
Summary of Contents for DM62
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