D3X R/L / D3XS R/L
D3X R/L / D3XS R/L
Operator’s Manual
12
3.4. Mounting the cooling system
Hang the cooling system on the screws located on the machine side and attach the
tip of the cooling hose to the coupling, as shown in Figure 7.
Figure 7.
Mounting the cooling system
3.5. Control system of the electromagnetic
base
holding
force
The D3X(S)
drilling machine incorporates a holding force control system to monitor
the adhesion force of the electromagnetic base to the surface. The force value
depends on several factors, such as type, thickness, flatness, and roughness of the
surface, presence of paint, rust or other contaminants, supply voltage fluctuations,
and the wear of the electromagnetic base bottom.
If the holding force falls below a safe operating value (Figure 8), the control system
will not allow the machine to operate. Additionally, the system will prevent the startup
of the motor if the machine is placed on a surface thinner than 5 mm (0.2
’’) as such
thickness does not provide sufficient holding force. In
such
a
case,
the
adhesion
force
will be
only
about
25 %
of
the
force
attained
on a standard 22 mm
(0.87’’) flat plate.
If the motor does not continue operation after the green MOTOR
button is
pushed and released,
it
means
that
the
control circuit is operating properly and
preventing further drilling because of too low adhesion force.
