Note. Adjust accel-drum unit whenever accel-drum unit, throttle chamber or rod is removed or replaced. Replace rod whenever removed. Ensure rod couplings are coated with grease before installing rod.
- With rod installed, loosen lock nut and adjusting screw. (Scheme 1) Manually rotate accel-drum unit until throttle valve in throttle chamber is fully open, and hold accel-drum in this position.
- Note if stopper lever is contacting adjusting screw. If stopper lever is contacting adjusting screw, rotate adjusting screw until clearance exists between stopper lever and adjusting screw.
- Rotate adjusting screw until it contacts stopper lever. Rotate accel-drum unit so throttle valve is closed. Rotate adjusting screw 3 full revolutions clockwise. Tighten lock nut to 48 INCH lbs. (5 N.m).
