The WHEEL-LOK
™
vehicle restraint is an
electromechanical, self-aligning restraint device used to
secure trucks and semi-trailers to the face of a loading
dock. This is achieved by locking the wheels of the
truck/trailer with a sled base and barrier system. This
prevents forward movement of the truck/trailer that may
create an unsafe void between the face of the dock and
the rear end of the truck/trailer during forklift operations
or creates an obstruction noticeable to the truck driver
should the driver accidentally attempt to leave the dock
while the truck/trailer is still being serviced.
The proper or improper engagement of the barrier is
monitored by:
a.
VISUAL COMMUNICATION – one set of flashing
green or red lights located at the inside of the
building for the forklift operator and one set located
outside of the building for the truck driver.
b.
AUDIO COMMUNICATION – an intense horn will
sound inside of the building, warning the forklift
operator if there is an unsafe lock condition. In this
case, the trailer must be secured by other means
(wheel chocks, etc.) prior to servicing the trailer.
For proper barrier engagement, it is required that the
trailer is parked firmly against a 4" thick (trade
standard) dock bumper. The activation/deactivation of
the WHEEL-LOK
™
restraint is solely controlled from the
inside of the building by depressing either the LOCK or
UNLOCK button.
The normal stored position of the sled is located at the
farthest point from the dock face with the barriers
closed. With the barriers in this position, the outside
lights will be flashing green and the inside lights will be
flashing red. See Figure 1.
1
DEFINITION AND FUNCTION OF THE
WHEEL-LOK
™
VEHICLE RESTRAINT
IMPORTANT
WARNING
TRAILER LANDING GEAR
MUST BE RAISED WHEN
LOCKING AND UNLOCKING
TRAILER TAILGATES MUST BE
RAISED WHEN BACKING IN OR
PULLING AWAY FROM DOCK
PUP
FIGURE 1
