Landoll 425B Series Operator'S Manual Download

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3-14

F-543-1011 Edition

OPERATING INSTRUCTIONS

Unloading Procedure

Practice all standard industrial safety standards.

Park the tractor/semitrailer in a straight line on a level
even surface

(See Figure 3-7.)

Set the tractor brakes

and release the semitrailer brakes.

Start operation of hydraulic power system. If the
hydraulic engine package is installed, start and warm
up the auxiliary hydraulic power engine following
engine operating instructions in

“Hydraulic Power

Supply Engine Operation (Option)” on page 3-20.

Make sure load is still in correct position to get proper
weight distribution on kingpin and secured with
appropriate load tiedowns.

Using the

AXLE CONTROL

lever, move

undercarriage forward (out of pockets) five to eight
feet, or just behind the center of gravity of the loaded
semitrailer

(See “Axle Control Lever” on page 3-8.)

This is to insure that the trailer does not rock back.
Actual center of gravity will relocate to the rear as the
trailer is tilted up.



CAUTION

Using the

TRAILER TILT

lever

raise the front of bed

up to full tilt position reeling out winch cable as
needed to keep slight tension on the cable

(See

“Trailer Tilt Lever” on page 3-8.)

If the approach plate has not touched the ground,
move the undercarriage forward until the approach
plate touches the ground and starts supporting the
trailer. Then alternate between moving the
undercarriage forward while lowering the tilt angle
and reeling in the winch cable. The object is to keep
a part of the weight on the approach plate, and part
of the weight on the wheels while lowering the tilt
angle and keeping slight tension on the winch cable.
Always use low load angle to unload powered
products. To achieve low load angle, the
undercarriage has to be all the way forward. The
maximum load angle is only intended, if required, for
unloading non-powered products and to transfer load
to tractor. Transfer load to tractor by raising deck and
moving axles toward rear until load is forward of rear
axle, thus transferring load to tractor.



WARNING

IMPORTANT

Maximum angle is only intended if required for
unloading non-powered products and to transfer
load to tractor. Transfer load to tractor by raising
deck and moving axles rearward until load is forward
of rear axle, thus applying load to tractor.

If load is non-powered, insure that the winch cable is
firmly attached to the load and tension is on the
cable. Tilt trailer according to

steps 5 through

adjusting tension on winch cable as required. With
winch cable firmly attached to load and sufficient
tension on the cable so load securing devices can be
safely removed, remove other load securing devices.
Use the winch to assist the load down to end of
approach plate. With end of load resting on ground,
block load from rolling or sliding, if necessary.
Disconnect the winch and move the trailer from under
the load, allowing the load to move off trailer to the
ground.

If powered load is secured to lower deck only, tilt
semitrailer according to

step 7

. Make sure the trailer

is tilted to the low load angle. Check that powered
equipment parking brakes are set and winch cable
hooked to powered equipment with sufficient tension
so load securing devices can be removed. Remove
safety secure devices. Take tension off winch cable
and remove winch cable. Power load off the trailer.



WARNING

10. If powered load is secured to both upper and lower

deck, attention is required before tilting the trailer.
Adjust load securing devices to allow semitrailer to tilt
and sufficiently secure load from movement while
semitrailer is tilted to low load angle before tilting the
semitrailer.

11. Before returning the semitrailer to transport position

insure that there is sufficient distance between the
load and the rear of the semitrailer so that the
semitrailer does not hit the load when being folded
back to transport position.

Do not allow the back semitrailer axle to leave the
ground. This can result in damage to the
semitrailer.

Always use low load angle to load and unload
powered products.

When removing load, insure that the load is
steering straight so it does not maneuver off the
side of the semitrailer. Failure to do so could
result in damage to equipment, injury, or death.