Allison Transmission 3000 Mechanic's Tips page 69

2. Secure the sensor body using the mounting holes provided.
3. Install a heat shield if any part of the throttle sensor is near the exhaust
manifold, turbochargers, or any other heat source.
• Adjust the throttle sensor as follows:
1. The engine fuel lever must be at the closed throttle position.
2. Install the hitch pin cable end of the sensor to the engine fuel lever
with brackets so that at the idle position the cable end is 11–17 mm
(0.44–0.67 inch) from its fully retracted position, and at wide open
throttle the cable end is pulled 15.2–22.9 mm (0.60–0.90 inch) from the
idle position.
3. Determine the stroke distance of the throttle sensor, from closed to wide
open. Stroke distance must be from 15–22.9 mm (0.60–0.90 inch).
4. Recheck for zero clearance at the fuel lever. Make sure that the
15.2–22.9 mm (0.60–0.90 inch) dimension has not changed.
5. Design throttle sensor linkage brackets and levers to nominal
dimensions so that the system stays within tolerance bands throughout
its operating life.
NOTE: The throttle position signal may be provided via communication
link on electronically controlled engines.
68