Group 03, Section 01, Page 2 Mechanical Dock Leveler – M and FMC
Issue Date: 10/01/01, Rev, 0 (Part #038-550E)
DESCRIPTION OF OPERATION
Before moving the dock leveler from
the stored position, it is most important
to chock the vehicle wheels or
otherwise secure the vehicle to prevent
its movement away from the dock,
before operating the Dock Leveler.
In stored position the lift springs are
stretched and the lifting arm is at the
base of the cam. The loaded springs
are fully tensioned in this position and
are always trying to pull the Lifting Arm
to the rear. The dock leveler can not
move upward however since it is held
in position at floor level by a “hold
down" mechanism. As you can see
above the "Lip" is folded down and is
being retained by the "Lip Keepers".
To raise the Dock Leveler deck, one must firmly pull up the release ring in the left-rear
corner of the deck and hold it up until the deck lift springs fully raise the deck. The lip will
automatically extend and will lock as the deck reaches its fully raised height.
WALKING THE DOCK INTO
POSITION
The deck is lowered by the operators
weight as he walks up it’s slope. The
extended lip makes firm contact with
the truck bed. At this point the bridge
is formed and the entire weight of the
outer end of the dock deck is supported
by the lip resting on the truck bed
Note: It is important to note that even though the lift springs are always trying to lift
the dock deck, their upward force is being opposed by the action of the “Hold Down
Mechanism". The unit is now considered to be ready for lift truck traffic.
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