Oiling a Gottlieb score motor (one point only)

Steps

• Tip the score motor up on its hair pin.
• Find the small hole on the underside that leads to the felt needle-bearing pad.
• Put two or three drops of light machine oil (3-in-1) on the pad.
• Leave everything else dry: brass-on-brass, nylon-on-nylon and nylon-on-metal gears are made to run without lubricant.

Systems

• Electro-mechanical

Related tips

• EM rotating contacts and score motor lubrication
• Old rubber cushion squares on 1970s Gottlieb glasses

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