Grounded Armature
Place armature in growler. Touch one lead of a self-powered test light to armature core and remaining lead to each commutator bar. If test light is activated, armature is grounded. Replace armature.
Place armature in growler. Touch one lead of a self-powered test light to armature core and remaining lead to each commutator bar. If test light is activated, armature is grounded. Replace armature.