Big Dutchman Dry Rapid DR 1500, Mounting And Operating Instructions

Page: 150 / 185

Page 140
Release for volume dispenser
DR 1500
Edition: 08/10 M 4021 GB
12.3.3 Winch motor incl. limit stop
Safety regulations
Observe the following points, before insertion or removel, as well as during fault finding
or fault removal:
• The winch motor is out of operation.
• Power supply has been disconnected and the main plug has been unplugged.
• The winch motor is free of loads that could otherwise be released during one of
these operations.
Before taking the winch motor into operation the following points have to be checked:
• The winch motor has been assembled correctly as described in the respective
instructions.
• The object that is to be moved, can move freely corresponding to the working way
of the winch motor.
• The winch motor is connected to the main power supply / transformer with the
correct tension for the respective winch motor.
During operation:
• Pay attention to abnormal sounds and irregular operation. Immediately turn off the
winch motor, as soon as you notice anything strange.
If the installation is not running:
• Disconnect power supply or unplug the main plug, to prevent putting the installation
into operation by accident.
During the errection or assembly of objects in which the winch motor is to be built in,
any possible risk of injury (such as jamming of fingers or arms) has to be ruled out.
Mode of operation
The winch motor is run by a low-voltage DC motor (pos. 3), that drives a threaded
spindel via a transmission system (pos. 4). A safety nut is attached to the spindle. As
the nut is not able to turn because the piston rod is kept in place (pos. 6) it moves back
and forth when the spindle turns. Together with the piston rod, the actuating rod (pos. 8)
for the limit stops is retracted and extended. The type of motor, type of gearing and type
of spindle determine the shearing force and the speed.
Do not expose the winch motor to dissolvents or basic or alkaline liquids.