Holiday Trip 2012, Руководство пользователя

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2012 Trip
To Connect Hose:
Push hose into fitting through the
release ring and the O-ring. Use a slight
twisting motion to seat firmly against
the internal tube stop.
Pull hose away from fitting to expand
and set inner seal. Ensure hose is
properly retained and aligned with
fitting to prevent leaks.
NOTE:
When putting hose back into fitting,
cut hose at 90º for an even seal in
the fitting. The cavity of the positive
tubing stop provides support to
prevent leakage.
WARNING:
Do not remove air hoses from fittings
while system is pressurized. Serious
injury may occur.
WARNING:
Do not allow anyone under the
motorhome without first properly
blocking frame (jackstands) from
coming down in case of rapid deflation
of air system.
Air System Test
Air system integrity is tested at the factory.
The air system is equipped with several safety
features. Periodically test these safety features
for function as well as checking the air system
for possible leaks.
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NOTE:
These tests can also be found in the
Department of Motor Vehicle (DMV)
air brake certification requirement.
Some tests will require precautions for
safety purposes.
Inflation Rate Test:
This will test how long it takes the air system
to achieve a specific pressure in a timed event
when starting at a lower pressure. This test
will verify the minimum acceptable volume of
compressed air created by the air system.
Start engine. Increase engine speed to
1000 rpm.
Beginning time for the test will commence
when air system pressure obtains 85 psi.
End time when system pressure obtains
100 psi.
Elapsed time must not exceed 45 seconds.
Air Governor Cutout Test:
The air governor controls action of the air
system pump. This will test the air governor
cutout pressure setting, which indicates system
pressure has achieved maximum set psi.
Start engine.
Run engine until a chuff (air release) is
heard from the air dryer.
Maximum cutout pressure must not exceed
155 psi. Air system pressure will stabilize
between 135 to 145 psi.
Unapplied Pressure Loss Test:
This test will verify maximum acceptable
air system pressure loss rate without use of
any pneumatically operated devices. This test
requires a flat, level surface as the park brake
will be released with the engine off.
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Chock wheels to prevent vehicle movement.
Start engine.
Run engine until a chuff (air release) is
heard from the air dryer.
Shut engine off.
Release the park brake.
Note system pressure after air system
stabilizes from release of park brake. Air system
pressure must not lose more than 2 psi per
minute.
Applied Pressure Loss Test:
This test will verify the rate of maximum
acceptable air system pressure loss with only
the service brakes applied. Do not use other
pneumatically operated devices during this
test. This test requires a flat, level surface
as the park brake will be released with the
engine off. Chock wheels to prevent vehicle
movement.
Start engine.
Run engine until a chuff (air release) is
heard from the air dryer.
Shut engine off.
Release the park brake.
Apply and hold service brake pedal.
Note system pressure after air system
pressure stabilizes. Air system pressure must
not lose more than 3 psi per minute.
Low Air Warning Test:
This test will verify low air warning buzzer/
lamp activation. A Low Air warning buzzer or
lamp will sound/illuminate should air system
pressure fall to 60 or 65 psi.
Start engine.
Run engine until low air warning
indicators are inactive.
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