Operation
Should the RED indicator and beeper not shut off soon after
startup, the air pressure gauge / gauges should also indicate
at least one section of the split system has low air pressure.
If the RED indicator, beeper and gauge indicate a loss of
pressure while driving, the vehicle still has a portion of the
braking capability, because one-half of the split system braking
capability is retained. However, the distance required to stop
the vehicle will be increased.
Reservoir Moisture Draining
The Bendix
®
AD-IS
®
air dryer automatically drains the wet tank.
Daily draining is not required.
Moisture taken in with the air through the compressor inlet
valves collects in the reservoirs and necessitates draining each
reservoir periodically. This is done by opening the drain cocks
located at the end of all tanks (optional pull-cable operated drain
valves may be present). If the drain cock is opened in the end
of the tank, there must be some air pressure in the system to
ensure proper drainage. Be sure to close the drain cocks after
all moisture has been expelled.
On vehicles so equipped, the reservoir automatic drain valve
ejects moisture and contaminants from the reservoir in which it
is connected. It operates automatically and requires no manual
assistance or control lines from other sources. The reservoir
should be drained and the valve should be examined periodically
to ensure that the drain passage is not obstructed.
Brake Application
Rapid successive brake applications and release, sometimes
referred to as fanning or pumping the pedal, should be avoided.
This is an inefficient way of slowing or stopping a vehicle
and inefficient use of air pressure. It also defeats the proper
operation of the ABS.
Parking Brake
WARNING
To prevent property damage, personal injury, and
/ or death, under no circumstances should the
spring brake section of the spring and service
brake chamber be disassembled. Disassembly
will release a powerful spring.
All vehicles with air brakes are equipped with spring brake
chambers for parking. The parking system is operated manually
by a single valve, which in the case of a tractor also controls the
parking system on the trailer.
The purpose of this brake is to hold the vehicle in a parked
position. The parking brake should not be used to brake the
vehicle during normal driving.
To apply the parking brake, pull out control knob. To release the
parking brake, push in the control knob.
It should be noted that upon loss of air pressure in both primary
and secondary systems, partial spring brake application will
occur prior to full automatic application of the parking brake
control valve at 20 - 45 psi (138 - 310 kPa).
184
Summary of Contents for ProStar+
Page 4: ......
Page 24: ...Foreword 12...
Page 38: ...Model Description 26...
Page 74: ...Controls Features Declination Zone Map 62...
Page 98: ...Controls Features Center Dash Panel Wing Panel 86...
Page 118: ...Controls Features 106...
Page 243: ...Maintenance Instructions 231...
Page 286: ...Maintenance Intervals and Specifications 274...
