The unit is designed for the controlled movement of frames. It is installed under the frame
and connected to a control and power supply suitable for the unit.
In the rest position / basic position, the drive wheel is raised to the top end position (see the
following figure). If the control is actuated, the drive wheel lowers to the ground (see illustration
on the right) and the travel drive is switched on.
The unit can be used in 'Continuous driving' mode or optionally in 'Starting aid / manoeu-
vring' mode. When used in 'Continuous driving' mode, the drive wheel is lowered and driven
until the drive is switched off.
The rated operating mode's permissible driving time
(S3 ED 30% 45 minutes) is 13.5 minutes in this mode, i.e. 30% of 45 minutes.
The drive wheel is then raised again after a time defined in the control.
When used as a starting aid, the drive wheel is lowered and switched on for a few seconds.
This helps to overcome the starting resistance. The drive wheel is then raised again. The frame
must then be pushed manually.
The emergency release is used to raise the drive wheel in the event of a control fault. If you
switch on the control again after remedying the fault and actuate the travel drive for three se-
conds, the emergency release is cancelled. The drive wheel remains in the basic position. Only
the next time the travel drive is actuated will the unit be driven in normal mode again.
The micro-switch monitors the drive wheel's basic position. You can move the micro-switch
to adapt it to the control.
The device has a defined main direction of travel (see arrow).
In the opposite direction, the device is only used for manoeuvring slowly.
Component replacements and repairs (except wheel and axle exchange and the replace-
ment kit) may only be carried out by the manufacturer.
TASK AND FUNCTION
19