Fork Sleeves (Optional); Rotators (Optional); Hydraulical Connection - probst AKZ-UNIGRIP Serie Betriebsanleitung

Installation
4.1.2

Fork sleeves (optional)

To establish a mechanical connection between the fork lift truck and the fork sleeves you have to put the
forks into the fork sleeves and fix it with the locking bolt or with a chain/rope, connected to the eyelet on the
fork sleeves and the lift frame.
It is definitely necessary to establish this connection. Otherwise the device could slide form the forks.
DANGER OF ACCIDENTS!
1
2 locking bolt
3 Fork sleeve
4 Chain/rope
4.1.3

Rotators (optional)

When using rotators, a free-wheel throttle valve must be installed.
In order to prevent a sudden speedup and stopping the rotational movements, as this may damage the
device within a short time.
4.2

Hydraulical connection

•
To use the device (AKZ) two separate hydraulic circuits are required.
•
If the truck loading crane has only one control circuit, this one control circuit can be divided into two by installing an
electromagnetic switching valve (ELMV).
•
If the truck loading crane has two separate control circuits, the hydraulic hoses coming from the loading crane are
connected to the four screw-in fittings located at the head of the torque motor.
•
According to the hydraulic circuit diagram, a valve block is installed in the circuit of "Open device" and "Close device",
which via a pilot-controlled non-return valve prevents the stone packs from slipping out of the gripper in the event of
a pressure drop.
•
As a visual warning device in the event of a pressure drop, a manometer with orientation to the operator station is
installed.
•
The two external connections serve to operate the clamp, the internal connections to operate the rotator. The
hydraulic hoses (forward and return flow) must be connected accordingly.
•
Two screw connections are also attached to the pin of the torque motor, to which two hydraulic hoses are
connected, which lead to the valve block on the clamp.
56100050/56100051/56100052/56100053/56100054
Fork (of fork lift truck)
V1
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GB