STARTING AND DRIVING
FIFTH WHEEL INSTRUCTIONS
Connect the air brake lines and the
electrical power cord. Make sure that
any slack in the lines is supported so
that the brake lines do not become
entangled. Set the trailer brakes by
pulling out the Trailer Supply control on
the dashboard.
Remove the wheel chocks from the
trailer wheels.
Trailer Uncoupling
Apply the park brake on the tractor.
Apply the trailer brakes by pulling out
the trailer air supply knob.
1 Trailer Air Supply
Chock the trailer wheels. Use two
chocks (one on the front and one on the
rear of the wheel) on both sides of the
trailer.
Wind down the landing gear until it
touches the ground and then give it a
few extra turns in low gear. Do not raise
the trailer off of the fth wheel. Fold
down or remove the crank handle and
place it in the crank handle holder.
NOTE
In poor ground conditions, it may be
necessary to provide a stable base for the
landing gear.
NOTE
If the operating rod is too difcult to pull,
back the tractor up slightly to relieve any
kingpin load against the fth wheel jaw.
Release Tractor Park Brakes
• Apply the TRAILER brakes
• Release the Tractor Park brakes
• Back the TRACTOR only, to release
pressure on the kingpin
• Apply the Tractor Park brake
• Lower the landing gear to support
the weight of the trailer
• Pull the lever to release the king pin
lock
• Release the Tractor Park brake
• Pull the Tractor away from the
kingpin about 300 mm (12 inches)
and STOP
• Apply the Tractor Park brakes
• Disconnect the Air lines and
electrical connection to the trailer,
store them properly
• Release the Park brakes
• Slowly Pull Away
Disconnect Air Brake Lines
Disconnect the light cord and air brake
lines. Use the dummy air couplings to
keep foreign material from entering the
brake lines.
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X Publication_PC28
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