Kelley HK-S User Manual page 28

oPeraTion
Dock LeVeLers wiTH aUTo-reTUrn To Dock
oPTion
Before operating the dock leveler, read and follow Safety
Practices on page 3.
Use of dock leveler restricted to trained operators.
Follow procedures on placard posted near leveler
DO NOT USE THE DOCK LEVELER IF IT LOOKS
BROKEN, OR DOES NOT SEEM TO WORK RIGHT. Tell
your supervisor it needs repair right away.
Before pressing button, ensure lip avoids contact with
vehicle sides and cargo. If lip does not lower to vehicle
bed, reposition vehicle.
Stay clear of leveler unless lip is supported by vehicle
bed or the leveler is stored at dock level. Visually check
that the lip is supported by the vehicle bed or the ramp
is supported by both dock level supports before driving
or walking on the ramp. Unsupported dock levelers can
lower unexpectedly.
Before chocking wheels or engaging vehicle restraint,
dump air from air ride suspensions and set parking
brakes.
Always be certain that the vehicle wheels are chocked,
or that the vehicle is locked in place by a vehicle
restraining device and the brakes are set before loading
or unloading. Vehicles pulling away from the dock
unexpectedly can cause uncontrolled drop of the dock
leveler which can result in death or serious injury.
The maximum uncontrolled drop of a Kelley
leveler from any position is 3 inches.
Always return the dock leveler to its dock level (stored)
position before allowing vehicle to leave dock. If vehicle
pulls away from dock before dock leveler is stored, the
lip will fall to its pendant position and the ramp will drop.
In addition, failure to properly store the dock leveler
may leave the leveler in a position below the level of the
floor. This condition may result in unexpected drop of
personnel or material handling equipment and result in
death or serious injury.
Failure to follow these instructions could result in death
or serious injury to operators and/or bystanders.
28 6004753N — Hydraulic Dock Leveler - One Button Control — Safe
©2014 4Front Engineered Solutions, Inc.
inTroDUcTion
The KELLEy
compensate for space and height differences between a
loading dock and freight carrier to allow safe, efficient freight
transfers.
The KELLEy
Option uses a push-button control to position the dock
leveler. The Auto-Return to Dock Option has an "ON/OFF"
switch to control the ramp during below dock end loading.
Pushing and holding the raise push-button operates a
hydraulic cylinder to raise the ramp. Releasing the raise
push-button allows the ramp to lower.
When the dock leveler reaches its full raised position, a
second hydraulic cylinder extends the dock leveler lip. The
dock leveler with its lip extended settles onto the vehicle bed
forming a bridge.
After loading, pushing and holding the push-button raises
the ramp, and the extended lip lowers to its stored position.
Releasing the push-button allows the dock leveler to lower
to its level, stored position.
With the dock leveler in its stored position, dock level support
legs support the dock leveler ramp at a position level with
the dock floor. The dock level support legs will retract when
the dock leveler lip is extended, allowing the ramp and lip to
lower onto and follow the vehicle bed up and down as loads
are moved across the dock leveler and vehicle.
HK dock
®
HK dock leveler is designed to span and
®
HK dock leveler with Auto-Return to Dock
®
T
Frame
™
March 2014