Setting a Gottlieb EM to free play

Steps

• Turn the credit wheel to zero credits.
• On the credit stepper the notched wheel's pin opens two switches at zero.
• Set only the smaller-contact switch, the one nearest the backglass, permanently closed (or jumper it).
• Leave the larger-contact switch beside it working normally (open at zero), and don't touch the maximum-credit switch worked by the slotted-head pin.
• On Gottlieb's half-moon credit unit, only the zero switch nearest the increment coil needs to be held closed.

Systems

• Electro-mechanical

Related tips

• Setting an EM game to free play
• Setting a Bally EM to free play

Source: Repairing Electro-Mechanical (EM) Coin Operated Games to 1978, Part Two, Clay Harrell (pinrepair.com)