3-12 UNLOADING PROCEDURE
3-12.1
Practice all standard industrial safety
standards.
3-12.2
Park the tractor/semitrailer in a straight
line on a level even surface
(See Figure
3-4).
Set the tractor brakes and release the
semitrailer brakes.
3-12.3
Start operation of hydraulic power sys-
tem. If the hydraulic engine package is in-
stalled, start and warm up the auxiliary hy-
draulic power engine following engine oper-
ating instructions in
Section 3-17.
WARNING
WHEN LOAD IS ON TAIL, DO NOT
LOWER WITH LOAD SECURED TO
MAIN DECK. WHEN LOAD IS ON MAIN
DECK, DO NOT LOWER TAIL WITH
LOAD SECURED TO TAIL.
3-12.4
Move load as far forward as is practical
on the trailer and secure with appropriate
load tiedowns.
3-12.5
Using the
TAIL/AXLE CONTROL LE-
VER (See Section 3-9)
, move undercarriage
forward
until approach plate touches the
ground.
3-12.6
Switch the air ride suspension to lower
(on) position to achieve the lowest load an-
gle.
WARNING
ALWAYS USE LOW LOAD ANGLE TO
L O A D A N D U N L O A D P O W E R E D
PRODUCTS.
3-12.7
If load is non-powered, insure that the
winch cable is firmly attached to the load and
tension is on the cable. Lower tail deck ac-
cording to
Sections 3-12.5 through 3-12.7
,
adjusting tension on winch cable as required.
With winch cable firmly attached to load and
sufficient tension on the cable so load secur-
ing 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 neces-
sary. Disconnect the winch and move the
trailer from under the load, allowing the load
to move off trailer to the ground.
3-12.8
If powered load is secured to lower
deck only, lower tail deck according to
Sec-
tion 3-12.7
. Make sure the tail deck 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 securing
devices. Take tension off winch cable and
remove winch cable. Power load off the
trailer.
WARNING
WHEN REMOVING LOAD, INSURE
T H A T T H E L O A D I S S T E E R I N G
STRAIGHT SO IT DOES NOT MANEU-
VER OFF THE SIDE OF THE SEMI-
TRAILER. FAILURE TO DO SO COULD
RESULT IN DAMAGE TO EQUIPMENT,
INJURY, OR DEATH.
3-13
Summary of Contents for 900B Series
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Page 12: ......
Page 52: ...4 12 Figure 4 5 Wired Remote Control Diagrams...
Page 53: ...4 13 Figure 4 6 Tandem Triple Axle Air Ride Suspension Figure 4 7 Air Ride Height Adjustment...
Page 56: ...4 16 Figure 4 9 Checking Axle Alignment Figure 4 10 Examples of Camber...
Page 61: ...4 21 Figure 4 13 Axle and Brake Assembly...
Page 71: ...4 31 Figure 4 21 Crank Landing Gear Assembly...
Page 81: ...5 9 NOTES...
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