Air-Operated Trailer Braking Systems - New Holland T6010 Operator's Manual

SECTION 3 - - FIELD OPERATION
AIR- -OPERATED TRAILER BRAKING SYSTEMS
Air- -Operated Trailer Brakes
(except Italy)
WARNING
Single line trailer braking systems are designed for
use up to a maximum speed of 25 km/h (15 MPH).
Tractor/trailer combinations with dual line braking
systems may be used at a higher speed but must at
all times comply with local legal requirements. Gross
train weight, i.e., tractor plus trailer(s) and/or
individual trailer weight must not exceed that laid
down in local regulations governing the use of
trailers.
The following text covers operation of the air-
operated trailer braking systems that may be
installed as an alternative to hydraulically-actuated
trailer brakes.
The system consists of an engine-driven air
compressor, one or two air reservoirs, dependent
upon type of system installed, a pressure gauge,
control valves, two or three couplers and related
pipework.
A filter/dryer unit in the braking system extracts
moisture from the pressurised air helping to avoid
componenets in the implement braking system from
freezing in low temperatures. Any moisture collected
is automatically exhausted through the system
unload valve.
The couplers installed at the back of the tractor may
be connected to single or dual line trailer braking
systems. Either or both types may be installed. The
air lines connected to the couplers are colour-coded
black, red and yellow. The black line is used for a
single line system, the red and yellow lines are used
for dual line systems.
IMPORTANT: The trailer brakes will only operate
when both tractor brake pedals are applied.
Therefore, always lock the brake pedals together
when a trailer is attached to the tractor.
NOTE: The tractor handbrake is connected to the
main control valve. Whenever the handbrake is
applied, the trailer brakes are activated.
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