Poweramp POWERSTOP A 11.1996 - Manual (Page 5)

The Automatic Truck Restraint is a hydraulically activated vehicle restraint
that is upwardly biased when activated. Two hooking ranges allow
engagement with ICC bars that are positioned 7" to 11" from the bumper
face and 12-1/2" to 30" off the drive approach. By rigidly mounting the
restraint to a concrete pad or drive approach, restraining forces in excess
of 22,800 pounds can be achieved. Automatic Truck Restraints may also
be equipped with light communication packages that can be operator
controlled or automatic.
Operation of the restraint is from atop the dock. With the truck positioned
squarely against the bumper, the dock attendant depresses the "Acti-
vated" pushbutton to activate the vehicle restraint. Twin extension springs,
in conjunction with a hydraulic cylinder, raise the hook vertically to meet
the ICC bar. The hook maintains positive contact with the ICC bar as the
trailer moves vertically during loading and unloading operations. To
release the vehicle (restore the restraint), the dock attendant depresses
the "Stored" pushbutton. The restraint will then lower until the storage
latch is engaged.
Visual confirmation of the restraint engagement to the ICC bar is required.
If the vehicle restraint cannot engage the trailer, the operator must chock
the trailer tires. If equipped with lights, the operator must manually select
the Bypass position on the control panel to assure proper light signals.
When the loading/unloading operation is completed, the light control
switch must be switched back to the automatic position.
An integral brush shroud is utilized in the design to protect the activation
mechanism from damage and minimize the collection of debris.
Introduction
2
WARNING
Operating range of restraint
should be clear of personnel
at all times.
CAUTION
To prevent personal injury
always operate the truck
restraint from atop the
dock.
WARNING
Never service a trailer that
is not safely secured to
the dock.