Re: Toro timecutter sw4200
Striking a permanent magnet starter motor with is one dumbest things that people do. It break loose the magnets or crack them lead to permanent failures. This is an old auto mechanic trick that some tries on these starters. The problem is automobile starters are NOT permanent magnet motors, they are electro-magnetic.
Starting problems can be caused by commuter ring being glazed, poor or corroded electrical connections, bad switches contacts. Usually doing voltage drop test help pin point the problem.
By all things just hammering on these starters, I like selling new ones.