User Manual

WARNING
Never connect or disconnect a hose or
line
containing air pressure. It may
whip as air escapes. Never remove a
component or pipe plug unless you are
certain all system pressure has been
depleted. Failure to comply may result
in property damage, personal injury, or
death.
WARNING
Never exceed recommended air pres-
sure
and always wear safety glasses
when working with air pressure. Never
look into air jets or direct them at any-
one. Failure to comply may result in
property damage, personal injury, or
death.
WARNING
Never attempt to disassemble a com-
ponent
until you have read and under-
stood recommended procedures.
Some components contain powerful
springs and injury can result if not
properly
disassembled. Use only prop-
er tools and observe all precautions
pertaining to use of those tools. Failure
to comply may result in property dam-
age, personal injury, or death.
WARNING
Completely bypassing a Bendix® AD-
IS
air dryer will bypass the system’s
pressure protection valves. This could
lead to loss of air pressure or damage
to the vehicle’s air system, which could
cause an accident involving death or
personal injury. Always adhere to the
manufacturer’s procedure if it is nec-
essary in an emergency to temporarily
bypass an AD-IS series air dryer. Fail-
ure to comply may result in death, per-
sonal injury, equipment or property
damage.
WARNING
If a different air dryer brand or model is
installed
on the vehicle other than
what was originally installed, it could
cause the air system to not perform
correctly
unless the full air system de-
sign is reviewed and modifications
made to comply with Federal Motor
Vehicle Safety Standards (FMVSS)
121 AirBrake Systems. Failure to
abide by this warning and maintain
compliance to FMVSS 121 could
cause loss of vehicle control and may
lead to death or serious personal in-
jury.
WARNING
If the supply and service air tanks are
not
drained at the recommended fre-
quency, water could enter the air lines
and valves. This could cause corrosion
or blockage, which could compromise
the brake system safety and potential-
ly cause an accident. Failure to comply
may result in property damage, per-
sonal injury, or death.
Your vehicle’s compressor takes outside air
and compresses it, usually to 100-120 psi
(689-827 kPa). The compressed air then
goes to the reservoirs to be stored until
needed. When you operate your air
brakes, the stored compressed air flows
MAINTENANCE - Air System
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