3-7
PARKING THE TRAILER
3-7.1
Position truck/semitrailer rig on a level,
solid surface.
3-7.2
Set the
PARKING BRAKE
,
not the
semitrailer hand brake
, and check for proper
brake holding.
3-7.3
Chock wheels of semitrailer.
3-7.4
Check for any air leaks in lines, relay
valve, brake pods, or any other air system
component.
WARNING
WHEN LEAVING THE SEMITRAILER
UNATTENDED, POSITION ALL HY-
DRAULIC CONTROLS TO THE NEU-
TRAL OR “OFF” POSITION OR DIS-
CONNECT THE TRACTOR HYDRAULIC
HOOK-UP.
3-8
UNCOUPLING TOWING VEHICLE FROM SEMITRAILER
3-8.1
Park the semitrailer according to instruc-
tions in
Section 3-7.
3-8.2
Using the
TRAILER LIFT LEVER (See
Section 3-11)
, raise the semitrailer until the
load blocks can be raised.
3-8.3
Using the
LOAD BLOCK TRIP LEVER
(See Section 3-10
), raise the load blocks up
into the gooseneck.
3-8.4
Using the
TRAILER LIFT LEVER (See
Section 3-11
, lower the semitrailer until the
semitrailer rests on the ground.
3-8.5
Shut off the hydraulic pump.
3-8.6
Disconnect the emergency and service
air lines and attach them to the tractor glad-
hand holders. If present, install dummy glad-
hands on trailer couplings.
3-8.7
Disconnect the 7-pole cable and hydrau-
lic lines from the semitrailer and store with
the tractor.
3-8.8
Pull the tractor fifth wheel plate latch re-
lease lever.
3-8.9
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, re-
peat
Section 3-8.8 and 3-8.9.
3-8.10
Pull the tractor away from the semi-
trailer.
DANGER
ALWAYS CHECK BEHIND AND UNDER
THE TRUCK AND SEMITRAILER FOR
PERSONS OR OBJECTS BEFORE
MOVING. FAILURE TO CHECK CAN
LEAD TO SERIOUS PERSONAL IN-
JURY OR DEATH TO OTHERS, OR
DAMAGE TO PROPERTY.
3-9
GOOSENECK LIFTARM LEVER
The
GOOSENECK LIFTARM lever (See Fig-
ure 3-3)
is located on the driver's side of the
gooseneck assembly. It is the left or front most le-
ver. The lever has three positions:
UP
This position raises the gooseneck
lift arm to the transport or hook-up
position.
CENTERED
This is the neutral position. This po-
sition will not operate any of the
semitrailer components.
DOWN
This position lowers the gooseneck
lift arm, permitting the transport of
the detached gooseneck.
3-8
Summary of Contents for 325C
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Page 44: ...4 8 Figure 4 3 Models 325 326 327 329C Wiring Diagram...
Page 54: ...4 18 Figure 4 13 Checking Axle Alignment Figure 4 14 Examples of Camber...
Page 59: ...4 23 Figure 4 17 Axle and Brake Assembly...
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Page 78: ...NOTES 5 10...
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