Electrical & Instrumentation

There are two wires required to connect a control system to a ZF shift solenoid for either FORWARD or REVERSE gear shifting. The coil on the solenoid IS NOT polarity sensitive so the ground (-) and positive (+) can be … Read More

A magnetic pickup is normally installed into the flywheel housing of an internal combustion engine, so that the starter ring gear acts upon it to generate a voltage pulse each time a gear tooth passes the end of the sensor. The frequency of … Read More

Magnetic pickup location above the flywheel on the engine bellhousing

  Cummins Flywheel Number of Teeth on Flywheel Close Switch Cummins “C” SAE #3 127 1,3,4,7 Cummins “C” SAE #2 138 1,2,6,10 Cummins “C” SAE #1 158 1,2,4,5,6,8,10 Cummins “B” SAE #3 159 1,2,4,5,6,7,9,10