Perkins 1104D NH1 Systems Operation Testing And Adjusting page 34

34
Systems Operation Section
The primary engine position is a passive sensor. The
timing wheel (1) is located on the crankshaft. The
speed/timing sensor receives a signal from the teeth
on timing wheel. The extra space on the timing wheel
gives one revolution per space. The space is oriented
so that the space is 40 degrees after top center.
Illustration 35
Schematic for speed/timing sensor
Illustration 36
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