OPERATING INSTRUCTIONS
3-7
Parking the Trailer
1. Position truck/semitrailer rig on a level, solid surface.
2. Set the
PARKING BRAKE
,
not the semitrailer
hand brake
, and check for proper brake holding.
3. Chock wheels of semitrailer.
4. Check for any air leaks in lines, relay valve, brake
pods, or any other air system component.
WARNING
Uncoupling Towing Vehicle
from Semitrailer
1. Park the semitrailer according to instructions in
“Parking the Trailer” on page 3-7.
2. Lower the landing gear:
WARNING
a. Lower the pin drop landing gear to the ground.
Pin through both inner and outer legs of landing
gear.
CAUTION
b. For optional crank landing gear, turn crank
handle clockwise to extend. Using high gear,
lower the landing gear until the pads make
contact with the ground. To reduce the load on
the fifth wheel, shift to low gear and crank an
additional four to eight turns. Leave the landing
gear engaged in low gear.
3. Disconnect the emergency and service air lines and
attach them to the tractor gladhand holders. If
present, install dummy gladhands on trailer
couplings.
4. Disconnect the 7-pole cable and hydraulic lines from
the semitrailer and store with the tractor.
5. Pull the tractor fifth wheel plate latch release lever.
6. Attempt to pull the tractor forward. If the tractor
uncouples, verify all service lines are disconnected
and semitrailer wheels are chocked. If tractor does
not disconnect, repeat
7. Pull the tractor away from the semitrailer.
DANGER
When leaving the semitrailer unattended,
position all hydraulic controls to the neutral or
“off” position and shut off the hydraulic engine
power supply, or disconnect the tractor hydraulic
hook-up.
With pin drop stands, be sure to secure each leg
with pin before leaving semitrailer unattended.
Always grip crank handle securely with both
hands. Never shift landing gear under load. Never
leave the gears in neutral or the crank unsecured.
Always check behind and under the truck and
semitrailer for persons or objects before moving.
Failure to check can lead to serious personal
injury or death to others, or damage to property.
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Содержание 900D Series
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