The generic term “Growler” describes a specialized tool used to test generator and motor armatures. Any generator or motor repair shop will have one of these tools. All Growlers have the basic “Growl” test feature and some have two additional test features depending upon the manufacturer. All three capabilities are desirable to comprehensively test an armature.
1. Basic “Growl” test function is the capability to place the armature windings adjacent to high strength magnetic field and check for shorted windings.Continue reading “Testing a Model T Generator Armature Using a Growler”