User Manual

4) 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.

5) OVERLOAD PROTECTION, OVERHEAT PROTECTION

Overload Warning System:

When the load reaches overload conditions, the warning system will kick in, lowering the voltage and causing

the motor to stop. Simply back off the downward pressure to ease the load and the motor will automatically

restart.

Then the operator can continue to drill normally.

Overload:

If the excessive load is sustained too long, the motor will shut down

completely and the LED indicator light will glow solid red. In this case, the

motor must be first shut off and then restarted.

When this happens, the motor will very likely be near overheating, so it is

also a good idea to run the motor at no load for a few minutes to cool it

before continuing.

Overheat Thermal Protection:

If the temperature of the motor gets too high, the thermal protection will

shut the motor down and the LED indicator light will glow solid red. The

switch must be first shut off and then restarted. When this happens, do

not immediately start drilling after restarting the motor. 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.

6) SAFETY CLUTCH

This machine is equipped with a mechanical clutch to protect the operator and machine from excessive torque

forces. When the preset maximum torque level is reached, the clutch will slip. 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.

Trigger Switch

Lock Button

D-Handle Model

Indicator Light

Pistol-Handle Model