Wiring Schematic of AirLift Heavy Duty Compressor System Gauge

Question:

Replacing standard single needle gauge with heavy duty one what is the wiring diagram for rewiring the switch

asked by: Rich

Expert Reply:

The gauge used with the heavy duty Air Lift compressor system, # AL25854, has 4 wires because the switch is built into the gauge. The black wire is the ground, white is the signal to the compressor, red and green are ignition power wires. I have included a picture showing a wiring schematic for you.

On the standard duty switch you just have compressor signal wires to indicate additional air pressure (the upper switch terminal) and lower pressure (lower switch terminal).

expert reply by: Michael H