Daimler SEATTLE 1343B, Руководство оператора

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Air Brake System Operation
Page 32
AIR BRAKE SYSTEM OPERATION
The vehicle is designed with a dual
circuit air-operated brake system,
activated by the brake treadle valve,
located to the right of the steering
column.
Braking is controlled by the
operator’s foot pressure applied to
the treadle. The most effective
braking is obtained by making the
initial brake application gradually to
the extent of braking required.
In HEV propulsion systems power
can be recovered through
REGENERATIVE BRAKING
See
“Alternating Current Traction
Motor (ACTM)” on page 42.
Reduce the pressure applied to the
brakes as speed is reduced. When
the vehicle comes to a complete
stop, only slight pressure remains in
the brake chambers. This
procedure, otherwise known as
threshold braking, will prevent the
annoying jerking motion as the
vehicle stops.
Stop lights on the rear of the vehicle,
along with the REGENERATIVE
APPLIED indicator, illuminate when
the Regenerative Braking is
activated by applying the brakes.
Air pressure must be above 70 psi
before air brakes can develop their
full effectiveness. The operator
should observe the air pressure
gauge frequently.
If the LOW AIR PRESSURE
indicator illuminates and the buzzer
sounds during operation, stop the
vehicle and determine the cause of
air pressure loss. Manual pressure
on the treadle will not operate the
brakes without air pressure.
Loss of Air Pressure
A red LOW AIR PRESSURE
indicator illuminates and an audible
alarm sounds when air pressure in
the system drops below 70 psi.
Remove the vehicle from service to
a safe location, to determine and
correct the fault before continuing
service.