Air Throttle slow to respond

[Ralph L. Fullenwider]

HI Jay:

No, with a short explanation. The air throttle is controlled by the air
throttle valve ( gas pedal) then flows to a double check valve to the
throttle cylinder. The lower air pressure from the pressure reducing
valve/regulator insures that with the cruise control set, you can increase
speed by pushing the foot pedal, then return to the modulated air from the
cruise control and the set speed. Then when the break is pressed, the air
from the inversion valve is vented through an exhaust port on that valve.
So with the throttle being slow three items are the high hitters to check.
1 cylinder 2. Air throttle valve and 3 the double check valve.

When the break is applied, it sends 120 psi to the inversion valve closing
part of that valve and also closes part of the foot throttle and exhausts
the built up air pressure at each point to and exhaust valve, which also
exhausts the air pressure from the cruise control ( the air have been shut
off electrically by the break signal: at the Bendix, but at the same time,
if the cruise control has not been shut off electrically, when you hit the
resume button, the Bendix remembers the setting to the valves and returns
the 80 to 90 psi to the set speed once again) since the inversion valve has
now blocked the exhaust port shutting off the air from the break pedal.

Ralph

At 03:12 AM 2/13/2006 +0000, you wrote:
>I have had a slow responding air throttle since purchaseing my Bird
>3 years ago.
>
>Have dismantled the air cylinder at the engine compartment and it
>was a little slimy, but not too bad.
>
>I read in a recent post from Ralph with regard to Larry Watsons air
>leak question, that there is a air pressure regulator in that
>provides air to the air throttle and cruise control.
>
>My question- If this regulator were either set too little or too
>much air pressure, how would that affect the air throttle system?
>
>Too little make it slow to respond? and too much make it too quick?
>
>Thanks!
>
>Jay Darst
>85PT40
>Springfield, IL
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>Yahoo! Groups Links
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Safe travels,

Ralph and Charolette Fullenwider
Duncan, Oklahoma
580-574-2768
Ralph's RV Solutions
http://home.swbell.net/rlf47/index