Brandt H550 Series, Owner'S Manual

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Heavy Haul Trailers
40
WARNING! A direct visual inspection is required to assure a proper coupling. Several types of
improper couplings will pass the initial pull test and the sound is unreliable. Do not take for
granted that the trailer is properly coupled.
7.
Connect the light cord and the brake lines and be sure any slack in the lines is supported and the
brake lines do not become tangled.
8.
If your fifth wheel is equipped with a manual secondary lock, check to see that it is properly
engaged.
9.
Attach the trailer air lines and electrical cord to the gooseneck.
3.5.1.2 Uncoupling the Fifth Wheel
1.
Set the emergency brake on the tractor.
2.
Set the trailer brakes with the tractor trailer protection switch.
3.
Block the trailer wheels.
4.
The suspension air should be dumped from the air bags after the trailer parking brake is applied.
5.
Disconnect the light cord and brake lines.
6.
Ensure the anti-dive pin is in place and locked. If not, the Gooseneck will fall to the ground.
7.
Unlock the fifth wheel, including the manual secondary lock if so equipped. Dump the suspension
system if the tractor is equipped with an air ride suspension.
8.
Release the tractor emergency brake and pull out slowly from under the trailer. Let the trailer roll
down the fifth wheel and pick up ramps.