4-180
CONTROLS AND INSTRUMENTS
9. Pull the trailer hand brake lever to
check the operation of the trailer
brakes. The brakes are normal if
you hear air being discharged when
you return the lever to the original
position.
TRAILER
BRAKE
OFF
ON
Type 1
Type 2
10. Check that there are no air leaks. Also
check that the lights of the tractor and
trailer operate correctly.
11. With the brakes applied to the trailer
wheels by pulling the trailer hand
brake lever, slowly start the vehicle.
Repeat the above operation two or
three times to make sure that the
connection is complete between the
trailer and tractor.
12. Raise the landing gear of the trailer
fully, release the trailer's parking
brake and remove the chocks.
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