Set the credit unit for free play

Steps

• With the credit unit at zero, adjust its normally open zero switch so it stays closed.
• Check the maximum-credit switch is closed and opens at the limit (6, 8 or 10 credits).

Systems

• Electro-mechanical

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