Specifications

Vanner Power Group AutoThrottle Manual
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Figure 3- Electrical Installation — Auto Throttle Model 73-46
NOTE 1: On vehicles where turn signal and hazard warning lights are incorporated with the red stop light
filaments, cut the wire as shown and install a BLOCKING DIODE.
A bridge rectifier (Radio Shack #276-1185 or Westinghouse MB12A25V05) can be used in
place of the blocking diode.
NOTE 2: The Vanner Model 73-46 Auto Throttle incorporates a dual coil solenoid. The first is a low
current holding coil that will keep the solenoid actuated once set. The second is a high current
pull-in coil. An internal switch disconnects the second coil when the solenoid plunger completes
its stroke. If the plunger is not allowed to bottom out or complete its stroke, the internal switch
will not disconnect the high current coil and the solenoid will burn out in about 30 seconds.
Therefore, the Auto throttle installation must include fuse protection A SLOW-BLO 3AG 8 Amp
fuse is recommended.