3. Turn the sensor counterclockwise (CCW) 1/2 turn (180°) to establish the nominal gap of 0.71 mm
[0.028 inch].
4. Then turn the sensor clockwise (CW) until the wrench flats on sensor body are positioned at a 22°
angle to the pump shaft center line.
Most open-end wrenches have a 22° handle offset.
5. The final sensor position should be between 1/2 (180°) and 1/4 turn (90°) counterclockwise (CCW)
from the point where the sensor contacts the speed ring.
6. Hold sensor in position with a 1/2 inch hex wrench while tightening the lock nut to 13 N•m [10 lbf•ft].
Cross section view of speed sensor in variable pump
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