Air Throttle Conversion
DIESEL 8V71, 6V92, 8V92 SERIES ENGINES.
Automatic or manual
transmissions and General Purpose Throttle Control for all others
Complies with FMVSS-124, except the the Panel Mounted Lever Control
*Don't have a Detroit Diesel 6V92, 8V71
No problem, we have a general purpose throttle control
cylinder that may be adapted to your engine.
Original equipment mechanical linkage is very slow, unresponsive,
and requires frequent adjustments. The original mechanical linkage
can make your leg ache from the constant pedal pressure.
Upgrade your old mechanical throttle linkage to the new quick
response and light touch of a pneumatic throttle. An air throttle
offers quicker response and more control. Kits maybe installed on
manual or automatic transmission coaches. Air throttles are most
comfortable on a long trips.
This upgrade also solves the
problem of what to do with the original equipment linkage went
raising the drivers floor level with the rest of the coach.
Air Line Drawing
All lines except in the engine compartment, are 3/8" O.D.
DOT nylon or copper. Air lines in the engine compartment should be braded stainless steel.
There are others selling air throttle parts that may look like ours with attractive prices, but they are not designed for on-highway vehicles or require special modifications at time of installation by the OEM. For your customers safety, your liability and the safety of others on our highways, please ensure the parts you're installing are in compliance with FMVSS-124.
All our air throttle parts are in compliance with the Federal Motor Vehicle Safety Standard (FMVSS) 124 for on-highway vehicles.
Choose from two treadle assemblies,
Surface mounted or through the floor.
When the pedal is applied, the treadle regulating valve delivers an output
proportional to the pedal position. The output controls a valve on the throttle control
assembly which positions the engine's throttle lever.
Mounted Treadle.........OR..........Through The Floor
Surface Mounted Treadle
Through the Floor Mounted Treadle
Depending on your application, choose from the following parts to complete
The pneumatic throttle control assembly is used to position an engine's
throttle lever in response to an air pressure signal from the treadle valve. The assembly
contains a throttle cylinder, mounting bracket, throttle lever and spring. The mounting
bracket installs the cylinder on the limiting speed governor of a Detroit Diesel V-71 or
V-92TT series engine.
The external spring is provided for compliance with FMVSS-124
requirements. It returns the throttle lever to idle in the event of internal spring
failure. The mounting plate is designed to mount in two
positions using the governor housing top plate bolts.
A simple bolt on installation.
Pneumatic Throttle Control Assembly.
If you have an application other than
a Detroit Diesel V-71 or V-92TT series engine, we have
a solution for you. The General Purpose Throttle Control! The lever on this
unit has multiple holes for easy connection to a variety of throttle
linkages. This unit is supplied with a rod end (1/4-28 female thread)
secured with a bolt and nut in the lever assembly.
replaces the mechanical modular on the Allison AT-540, CLT-750,
HT-750CRD, MT-640, CLBT-750, HT-740, HT-750DRD, MT-650 AND V-730
transmissions. When an air throttle is used on a vehicle with an Allison
transmission, the transmission modulator provides the transmission with a
signal proportional to the throttle position in order to control the
transmission shift pattern.
Pneumatic Transmission Modulator.
Some applications require a lever, our Panel
Mounted Lever Control may be the ticket. This unit works well with the
General Purpose Throttle Control.
actuated by a handle which is equipped with adjustable stops so the operator
can establish minimum and maximum pressure limits within the output range.
When the stops are adjusted to allow maximum handle movement, the valve
modulates through its entire output range and the handle has a rotation of
90 degrees. The unit also features a friction adjustment which restricts or
allows free movement of the handle.
Panel Mounted Lever Control
If you have a manual transmission, choose a
Treadle (Through-the-floor or Surface mount), add a Pneumatic
throttle control assembly, if installing on a Detroit 6V92, 8V71 or 8V92.
Other makes of engines, use our General Purpose Throttle Control.
If you have an automatic
transmission, add a
Pneumatic transmission modulator.
All components includes instructions and part
* Fittings and air line not included.
* Prices are subject to change.
When ordering, please specify
transmission model and surface or through the floor mount treadle.
To order call Coach
Conversion Central Products