300409 SPOOLGUN SWITCH FOR MILLERMATIC 135 & 175 MIG WELDER 

NORSTAR BADGER SPOOLGUN AND MILLER SPOOLMATE 100  SWITCH FOR MILLERMATIC 135 & 175 MIG WELDERS

THIS KIT FITS THESE 2 MODELS 

REMOVE MM COVER 

UNPLUG THE DRIVE MOTOR FROM THE PC BOARD 

DRILL A HOLE FOR THE SWITCH INSIDE WHERE SHOWS

PLUG IN THE WHITE PLUGS ON THE SWITCH INTO THE PC BOARD AND THE DRIVE MOTOR PLUG

PLUG IN THE RED AND BLACK WIRES INTO THE EMPTY 2 PINS ON THE 4 PIN TRIGGER RECEPTACLE

IF THE SPOOLGUN RUNS BACKWARDS REVERSE THE RED AND BLACK WIRES ON THE SWITCH( NOT THE 4 PIN RECEPTACLE)

THIS IS NOT A MILLER SWITCH

(You can hook up the spoolgun  and a miller style 300409 switch kit . If your 
Serial# is LC175022 and above ( with the 2 pin square drive motor plugs)
the switch plugs into the harness . If it is a lower serial number , you have to do some wiring , but not hard to do)