3-10.6
Winch or drive the load onto the semi-
trailer. Insure that the load is steering straight
up onto the semitrailer and does not maneu-
ver off the side of the semitrailer. Continue
until load center of gravity is just ahead of
the axles. The load should never place more
weight on the kingpin than on the rear axles
during loading and unloading.
CAUTION
MAXIMUM CONCENTRATED LOAD IS
10,000 LBS. IN A 10 FT. AREA FOR A
SINGLE AXLE SEMITRAILER AND
20,000 LBS. IN A 10 FT. AREA FOR A
TANDEM AXLE SEMITRAILER.
WARNING
1. THE SEMITRAILER MUST BE COU-
PLED TO A TRACTOR AND THE LAND-
ING GEAR RAISED OFF THE GROUND
BEFORE OPERATING.
2. DO NOT EXCEED THE GROSS AXLE
WEIGHT RATINGS FOR ANY AXLE ON
YOUR VEHICLE. THE COMBINED
WEIGHT OF THE SEMITRAILER AND
CARGO MUST NOT EXCEED THE
GROSS VEHICLE WEIGHT RATING
(GVWR) OF THE TRAILER.
WARNING
THE CENTER OF GRAVITY OF THE
LOAD MUST BE IN FRONT OF THE
CENTER OF THE UNDERCARRIAGE
WHENEVER THE APPROACH PLATE
IS NOT SUPPORTED BY THE GROUND.
FAILURE TO DO THIS CAN CAUSE THE
SEMITRAILER TO TILT BACK RESULT-
ING IN INJURY OR DEATH.
3-10.7
Securely tie down the load and attach
the winch cable to the front of the load, if it is
not already attached. Reel in winch cable un-
til it becomes tight. (Winch cable serves as a
safety tiedown in case load tiedown fails but
is not to replace tie downs.)
3-10.8
If the load center of gravity is not ahead
of the rear axle, alternate between tilting the
front of the bed up and moving the undercar-
riage to the rear, until the center of gravity of
the semitrailer load is in front of the rear
axle. Keep part of the load on the wheels
and part on the approach plate. Never move
the undercarriage so far to the rear that the
approach plate is lifted off the ground during
this procedure.
3-10.9
When the center of gravity of the semi-
trailer and load is in front of the rear axle,
fully lower the tilt angle.
3-10.10
After bed tilt angle is fully lowered,
move the undercarriage to the rear until it is
in transport position. Hold
TRAILER TILT
lever in the down position until hydraulic sys-
tem works against the bottomed out Hydrau-
lic Tilt Cylinders. Hold
AXLE CONTROL
lever in the transport position until hydraulic
system works against the fully extended hy-
draulic axle cylinder.
3-10.11
If necessary, unsecure the load, move
load slightly forward or rearward on the load
bed to get correct weight distribution on king-
pin and the semitrailer axles, and resecure
the load with the tiedowns and winch cable.
3-10.12
Shut down the auxiliary hydraulic
power engine following operating instructions
in
Section 3-13.
3-10.13
Recheck that the load is properly se-
cured. Assure maintenance schedule is up-
to-date and semitrailer is ready to be pulled.
3-7
Summary of Contents for 330B
Page 3: ...MODEL 330B SEMITRAILER OPERATOR S MANUAL PURCHASED FROM DATE ADDRESS PHONE NO SERIAL NO i ...
Page 8: ......
Page 12: ......
Page 20: ...3 8 Figure 3 3 Steps for Loading and Unloading ...
Page 26: ...3 14 Figure 3 7 Rear Impact Guard System ...
Page 34: ...4 6 Figure 4 2 330B Wiring Diagram ...
Page 35: ...4 7 Figure 4 3 Remote Wiring Diagram ...
Page 40: ...4 12 Figure 4 6 Examples of Camber Figure 4 7 Checking Axle for Bend ...
Page 44: ...4 16 Figure 4 11 Axle and Brake Assembly ...
Page 54: ......
Page 63: ...NOTES 5 9 ...
Page 64: ......