4-178
CONTROLS AND INSTRUMENTS
Coupler
V
CAUTION
Firmly set the trailer parking brake and block the trailer tires with chocks on
level ground before coupling and decoupling the trailer.
•
NOTE
Refer to the trailer manufacturer's Instruction Manual for detailed trailer handling
instructions.
•
1. Check that the jaw of the coupler
is open. If it is not open, refer to
"Decoupling of Trailer" for instructions
for opening the jaw.
Coupling of Trailer
Jaw
2. Align the center of the tractor with that
of the trailer and reverse the tractor
until it is immediately in front of the
trailer.
Kingpin
Coupler
3. Adjust the height of the trailer's
coupling surface using the landing
gear of the trailer until it is lower than
the coupler's top surface by 10 to 50
mm (0.4 to 2.0 in).
4. Slowly reverse the tractor and couple
the kingpin of the trailer to the jaw of
the coupler.
5. Firmly set the trailer's parking brake
and make sure the jaw of the coupler
is securely locked. Stop the engine
when the coupling operation is
finished.
Semi-trailer Tractor
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