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#1
11-14-2009, 06:59 PM
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How does an air throttle work?
Picked up a Foretravel motorhome for a friend. Cat 3208 pusher. I think it has an air throttle. When you first start it without any air pressure, engine will just idle. Once some air pressure is built, accelerator functions. Can anyone explain how this mechanism works? Never had one before.
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1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13 
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#3
11-14-2009, 07:21 PM
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How does it disconnect the foot pedal from the accelerator linkage? Pedal moves but nothing happens to the motor.
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1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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#4
11-14-2009, 07:38 PM
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It it's like any of the old school Army rigs I got to take a peek at, theres an air cylinder between the linkages. Could be wrong, but that's what it looked like.
~Nate
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95 Honda Shadow ACE 1100. 1999 Plymouth Neon Expresso. 2.4 swap, 10.5 to 1 comp, big cams. Autocross time attack vehicle! 2012 Escape, 'hunter" (5 sp 4cyl)
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#5
11-14-2009, 07:47 PM
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Quote:
__________________
1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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#6
11-15-2009, 08:05 AM
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From the Williams Control web page:
"Pneumatic Throttle Controls Pneumatic throttle systems are used to minimize application force requirements in systems where an operator is located far from the engine he is controlling. They also provide an effective, low cost method of independently controlling a single engine from two operator stations. Williams pneumatic throttle controls are powered by compressed air from a vehicle’s accessory air system. * Three-Way Regulating Valves/ Pedals and Hand Controls * Pneumatic Slave Cylinders * Pneumatic Transmission Modulators" www.wmco.com
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-Evan Benz Fleet: 1968 UNIMOG 404.114 1998 E300 2008 E63 Non-Benz Fleet: 1992 Aerostar 1993 MR2 2000 F250
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