3M PG II LT Glue Gun Thermostat TCO Repair Kit

Disconnect your PG II LT glue gun from electrical and compressed air service. Remove the 3 screws from the heat shield. The thermostat and TCO are assembled as a unit it is necessary you replace the entire old unit, regardless of which piece has failed. Remove the Quick-Slide clips from the thermostat. Then remove the two screws holing the thermostat in place and pry the thermostat from the block.  Up next simply insert your new thermostat. Double check that the rear rim of the thermostat is slipped into the slot in the heat block before affixing the screws. The thermostat cutout assembly is removed by unscrewing the Phillips screw that holds the thermal cutout to the head block on the stand off strips. Remove the other end of the thermal cutout from the terminal strip with a small Phillips screwdriver.  Naturally the procedure is reversed when replacing the thermal cutout.