Landoll 600B Series, Operator'S Manual

Page: 33 / 84

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.
3-17.1 The DOCK LEVELER SELECTOR is
located on the control panel. It switches con-
trol of the hydraulics to the DOCK LEVELER
CONTROLS (See Section 3-17.2).
IN Dock Leveler Controls are operable.
OUT The Tilt, Winch, and Axle functions
can be used, and the Dock Leveler
is inoperable.
3-17.2 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 cylinders. 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
positions.
IN When the control for either cylinder
is pushed in, toward the center of the
semitrailer, the corresponding dock
leveler cylinder retracts and trailer
bed 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 extends and
trailer bed is raised.
3-17.3 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.
3-17.4 Park the semitrailer in front of the dock
according to instructions in Section 3-7.
3-17.5 Engage hydraulic power supply. Push in
the DOCK LEVELER SELECTOR so hy-
draulic power is available to the Dock Lev-
eler circuit. Use the DOCK LEVELER CON-
TROLS to raise the rear corners of the semi-
trailer as needed. Operate 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
semitrailer deck (to retract the semitrailer
legs). Use one control to level adjust the
semitrailer bed.
IMPORTANT
BE SURE TO RETRACT THE DOCK LEVELERS
COMPLETELY WHEN FINISHED. PUSH THE
DOCK LEVELER CONTROLS IN - AT THE SAME
TIME - TO RETRACT THE DOCK LEVELER
LEGS AND LOWER THE SEMITRAILER BED.
3-17.6 Pull out DOCK LEVELER SELECTOR
to return semitrailer hydraulics to normal op-
eration. Shut off the hydraulic power.
3-21