Operation
9.
Charge trailer brake system. Set trailer brakes, either
with the hand valve or tractor protection valve.
Pull
against trailer for an additional check of hook-up. Do
not pull hard enough to damage or strain the equipment.
10. Set tractor parking brakes and fully raise trailer landing
gear.
Refer to Brakes segment of this section for
Operation of Parking Brakes and Trailer Brakes.
11. Check operation of all trailer lights and correct faulty
lights.
Un-Hook
1.
Try to keep tractor and trailer in straight line.
2.
Apply tractor and trailer parking brakes.
3.
Lower trailer landing gear, making sure it is on solid, level
ground. The weight of trailer must be on landing gear.
4.
Block trailer wheels.
5.
Disconnect brake hoses and light cords. Be sure hoses
and cords are clear.
6.
Pull coupler release lever to disengage fifth wheel jaws.
7.
Release tractor parking brakes.
8.
Pull out from trailer slowly, allowing landing gear to take
load gradually.
Fifth Wheel Jaw Unlock Control
Your vehicle may be equipped with an optional Fifth
Wheel Jaw Unlock feature. A guarded switch mounted
in the cab allows the operator to unlock the fifth wheel
jaw from inside the vehicle. There are two available
versions for the system, with monitoring or without
monitoring. The version with monitoring capabilities
includes additional indicators to show the driver fifth
wheel jaw status.
NOTE: Fifth Wheel Jaw Unlock is only operational when vehicle
is stationary, parking brake is set, and ignition switch is in the
RUN position.
NOTE: Outside (roadside), mechanical jaw release mechanism
is still operable regardless of in-cab control.
To unlock the fifth wheel jaw, depress and hold the UNLOCK
FIFTH JAW switch . If the switch is only pressed momentarily
jaw unlock will not occur. A continuous tone alarm will sound
while the jaw is unlocking. The continuous tone will then change
to a repetitive beep indicating jaw unlocking is complete. The
red indicator in the switch will turn on when jaw unlocking is
complete. Release the UNLOCK FIFTH JAW switch and release
the parking brake to silence the alarm. The red indicator will then
turn off. If the red indicator flashes fast, this indicates a fifth wheel
control system error or failure. If the red indicator flashes slowly,
this indicates an interlock problem, (e.g. parking brake not set).
NOTE: If the continuous tone alarm shuts off before the repetitive
beep is heard, jaw unlocking was incomplete.
168
3878859R2
Summary of Contents for ProStar+ Eagle Series.
Page 4: ...Operator s Manual ProStar Series Printed in the United States of America 3878859R2 ...
Page 12: ...Table of Contents Section 10 Index Index 235 viii 3878859R2 ...
Page 26: ...Model Description Exterior Components 14 3878859R2 ...
Page 28: ...Model Description 16 3878859R2 ...
Page 59: ...Controls Features 3878859R2 47 ...
Page 70: ...Controls Features Declination Zone Map 58 3878859R2 ...
Page 93: ...Controls Features Center Dash Panel Wing Panel 3878859R2 81 ...
Page 128: ...Sleeper Features 116 3878859R2 ...
Page 182: ...Operation 170 3878859R2 ...
Page 241: ...Maintenance Intervals and Specifications Typical Interior Fuse Panel Layout 3878859R2 229 ...
Page 262: ...Index 250 3878859R2 ...