Landoll 345B, Operator'S Manual

Page: 16 / 66

3-5 TOWING VEHICLE AND TRAILER HOOK-UP AND CHECK-OUT
WARNING
FAILURE TO PROPERLY SET AND
CHECK PARKING BRAKE, AND
CHOCK WHEELS WHEN PARKING
AND DURING STORAGE, COULD AL-
LOW MOVEMENT OF THE
TRUCK/TRAILER RIG RESULTING IN
SERIOUS PERSONAL INJURY, DEATH,
OR DAMAGE TO PROPERTY IN ITS
PATH.
3-5.1 Assure landing gear is raised up all the
way.
3-5.2 Attach safety chains from the trailer to
the towing vehicle.
3-5.3 Check your maintenance schedule and
be sure everything is up-to-date.
3-5.4 Set parking brake. If brakes are not
properly set, the truck/trailer may roll when
removing wheel chocks. Carefully remove all
wheel chocks.
3-6 TOWING THE TRAILER
DANGER
ALWAYS CHECK BEHIND AND UNDER
THE TRUCK AND TRAILER FOR PER-
SONS OR OBJECTS BEFORE MOVING.
FAILURE TO CHECK CAN LEAD TO SE-
RIOUS PERSONAL INJURY OR DEATH
TO OTHERS, OR DAMAGE TO PROP-
ERTY.
3-6.1 Driving the towing vehicle with the trailer
coupled behind requires constant attention to
the overall length of the combination. Turn-
ing, passing, acceleration, braking, stopping,
and back-up require special attention to the
“hinged-in-the-middle” configuration of the
trailer. When executing steep grades or turn-
ing tight curves, the trailer must not be al-
lowed to push the towing vehicle, or jackknif-
ing the trailer with the towing vehicle may re-
sult. Application of the trailer brakes to keep
the trailer in tow will help prevent this push-
ing. Braking should begin before descending a
hill or attempting a curve, to assure control.
3-6.2 Make a moving test of the trailer brakes
at low, and medium speeds before traveling
at highway speed.
a. The Anti-Lock Brake System (ABS) warning
lamp mounted at left rear side of the trailer
should come on when power is supplied to
the ABS by turning the tractor keyswitch on.
The warning lamp should go off once the
trailer exceeds 4 mph. Once the vehicle
speed exceeds 4 mph, the light should re-
main off unless a fault occurs or the
keyswitch is turned off, then on again.
CAUTION
IF A FAULT EXISTS IN THE TRAILER
ABS, NORMAL BRAKING WILL OC-
CUR, BUT WHEELS MAY LOCK. SERV-
ICE THE ABS AS SOON AS POSSIBLE.
b. If the warning lamp does not go off, a fault
exists in the trailer ABS. If a fault exists, serv-
ice using the anti-lock brake system section
or the troubleshooting section of this manual.
3-6.3 Monitor the air pressure gauge on the
dash of the towing vehicle. Pressure should
not fall below 105 psi at any time.
3-4