SHR-5000™ Dok-Lok
®
Owner's Manual
Rite-Hite
®
4 Publication:
AMEN00096 2018-05-30
NOTICE TO USER
Definition and Function
The SHR-5000 Dok-Lok vehicle restraint is an
electromechanical, self-aligning restraint device used
to secure trucks and semi-trailers with an intact Rear
Impact Guard (RIG) to the face of a loading dock This
is achieved by securing the RIG with an electrically
powered steel hook 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 as
a forklift travels from the loading dock onto the trailer; or to
create an obstruction noticeable to the truck driver, should
the driver accidentally try to pull the truck/trailer away
while it is being serviced
The proper activation of the barrier and the locking
mechanism is monitored by:
• Visual Control
1 set of flashing green or red lights located at the inside
of the building for dock personnel and 1 set located
outside of the building for the truck driver In addition to
the lights, there are 3 instruction signs
• Audio Control
A horn will sound at the inside of the building, warning
the forklift operator if there is not RIG present, or if
the engagement is improper In this case, the trailer
must be secured by other means (wheel chokes, etc)
prior to servicing trailer
Prerequisite for proper barrier engagement is that the
trailer is parked firmly against a 4in [102mm] (trade
standard) thick dock bumper The activation/deactivation is
solely controlled from inside of the building by pressing the
Lock (raise) button or the Unlock (lower) button
The normal mode of the hook is in the lower STORED
position, showing a flashing red light (trailer not secured)
at the inside of the building and a flashing green light
(trailer free to move to or away from the loading dock) at
the outside of the building
Once the trailer is parked, the dock attendant will depress
the Lock button This will raise the hook to engage the
RIG As soon as the RIG is properly locked, there will
be a simultaneous light change - the inside will change
from red to green flashing (trailer secured and supported)
and the outside will change from green to red flashing
(
DO NOT
move trailer) After the service is complete, the
dock attendant will have to depress the Unlock button
which then will return the hook to its lower STORED
position
A proper hook engagement is achieved when the hook
raises unobstructed to fully trap the horizontal cross
member of the RIG Assembly An improper hook
engagement is if the horizontal cross member of the
RIG is missing, obstructed or it is bent or located too
far from rear of trailer that it will prevent the free passage
of the hook At this point, the trailer must be secured by
other means (example: wheel chocks) in order to become
serviceable
