Landoll 317B, Operator'S Manual

Page: 31 / 80

WINCH.
3-15 DOCK LEVELER CONTROL OPERATION
DANGER
1. WHEN USING DOCK LEVELERS,
THE SEMITRAILER MUST BE KEPT
LEVEL AT ALL TIMES. DO NOT LOWER
THE PARKING STANDS. LOADS BE-
ING PLACED ON THE SEMITRAILER
MUST BE KEPT CENTERED ON THE
SEMITRAILER. AN UNLEVEL SEMI-
TRAILER MAY ALLOW A LOAD TO
SLIDE, CAUSING INJURY OR DEATH
TO ANYONE NEAR THE LOAD!
2. DO NOT OPERATE DOCK LEVEL-
ERS WITH INSUFFICIENT SPACE ON
BOTH SIDES OF THE SEMITRAILER.
SEMITRAILER WILL LEAN TOWARD
THE SIDE WITH THE SHORTEST CYL-
INDER. PERSONS OR EQUIPMENT
CAN BE CRUSHED BETWEEN SEMI-
TRAILER SIDE AND RIGID OBJECTS.
CAUTION
BE SURE TO CHECK THAT THE DOCK
LEVELERS ARE FULLY RETRACTED
BEFORE MOVING THE SEMITRAILER.
FAILURE TO RETRACT THE DOCK
LEVELERS BEFORE OPERATING CAN
CAUSE SEVERE DAMAGE TO THE
SEMITRAILER.
The DOCK LEVELER CONTROLS are located
under the deck on the driver’s side, between the
axles (See Figure 3-10). There are two controls
which adjust the height of the dock leveler cylin-
ders. The front-most control adjusts the cylinder on
the driver’s or street side of the semitrailer. The
rear-most control adjusts the cylinder on the curb-
side of the semitrailer. Both controls have three po-
sitions.
IN When the control for either cylinder
is pushed in, toward the center of the
semitrailer, the corresponding dock
leveler cylinder is lowered.
CENTER This position is neutral for either con-
trol. When either control is in this po-
sition, there is no effect on either cyl-
inder.
OUT When the control for either cylinder
is pulled out, away from the center of
the semitrailer, the corresponding
dock leveler cylinder is raised.
3-15.1 If your semitrailer is equipped with op-
tional dock leveler hydraulics, these may be
used to level the rear of the semitrailer to a
loading dock.
3-15.2 Park the semitrailer in front of the dock
according to instructions in Section 3-7.
3-15.3 Push in the Dock Leveler Selector so
hydraulic power is available to the Dock Lev-
eler circuit. Use the dock leveler controls lo-
cated between the axles on the driver’s or
street side of the semitrailer to raise the rear
corners of the semitrailer as needed. Oper-
ate both controls at the same time. Pull the
dock leveler controls to raise the semitrailer
deck (to extend the dock leveler legs). Push
the dock leveler controls to lower the semi-
trailer deck (to retract the semitrailer legs).
Use one control to level adjust the semitrailer
bed.
IMPORTANT
Be sure to lower the dock levelers when fin-
ished. Push the dock leveler controls in - at the
same time - to retract the dock leveler legs and
lower the semitrailer bed.
3-15.4 Pull out dock leveler selector to return
semitrailer hydraulics to normal operation.
Shut off the hydraulic power.
3-19