Lubricants to avoid on EMs

White grease hardens and WD-40 turns gummy within a short time, and silicone lubes are also unsuitable. Use Teflon gel, plain #10 oil or Williams coin-op lube.

Systems

• Electro-mechanical

Related tips

• Which lubricant to use on an EM

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