Adjusting The Hovering Position; Adjusting The Hovering Position Without Load - probst JUMBO-BV-VARIO Manual

Operating
JUMBO-BV-VARIO-B
V2
6.3

Adjusting the hovering position

6.3.1

Adjusting the hovering position without load

Open and remove both snap hooks off the vacuum hose
corset in order to release the vacuum hose unit (for
vacuum operation).
The hovering position without load must be adjusted with each operation.
The hovering position of the lifting device must be adapted to the weight of the vacuum head.
A valve (2) in the tube support cylinder is used to adjust it.
When you apply the vacuum head to the load a valve is fully opened by a plunger and the valve rod in the
vacuum head. The load can be sucked and lifted.
Adjustment:

Turn the adjustment screw (1) at the operating unit (accessible from the bottom).
Turn clockwise (direction of arrow)
Turn counter-clockwise

The farther the valve is opened the lower the device hovers.
When the valve is closed totally the device bounce up abruptly as soon the blower is switched on!
Vacuum hose is now released.
 Valve becomes opened.
Valve becomes closed.
26/07/16
27 / 40