FAILURE TO START
(MOTOR MAKES NO SOUND)
■ Check voltage at motor line terminals. Voltage should cor
respond with motor nameplate rating (+ 10%).
■ Check all electrical connections at the motor terminal
board.
■ If no voltage is present; check fuses, timers & switches.
■ Protector tripped — wait until motor cools then restart —
check protector for continuity.
START SWITCH CHECK
■ Visual checks:
• Disconnect power source.
• Remove canopy.
■ Make sure there are no obstructions preventing
the proper operation of the rotating governor.
Check wiring and make sure none of the leads
are in the area of the governor where they can
be cut or interfere with the governor. Check
governor for proper operation and make sure
flipper is free to move.
■ Check switch contacts for severely burned or
pitted contacts, sticking etc. Some blackening
or pitting is normal after motor has been used.
Replace switch if there is any doubt. Don’t try
to repair by bending the contact leaf.
■ Unlike points in an automotive distributor, the
switch contacts in motors are plated and should
never be sanded which would remove the plat
ing and cause early failure. They may be
cleaned by wiping with a piece of cardboard or
paper bag.
■ Reconnect power.
■ Start motor. Visually check the action of the
switch and governor. Switch contacts must be
closed when motor is at rest and should open
when motor reaches about 2/3 of full load
speed.
I'm not positive but there may be a start switch on the back of the motor that may be stuck.
