Playfield glass must be tempered
Tempered glass is far stronger and breaks into small blunt pieces, though a knock on a corner can shatter it. Signs of tempering: a small etched mark in a corner (rare on playfield glass), tong dimples on a short edge, slightly rounded corners, and a solid sound when tapped. Chipped edges or corners suggest it is not tempered; a glass shop can confirm. Replace untempered glass.
Systems
- Williams System 3
- Williams System 4
- Williams System 6 / 6A
- Williams System 7
- Williams System 9
- Williams System 11
- Williams System 11A
- Williams System 11B
- Williams System 11C
- WPC Alpha-Numeric
- WPC Dot Matrix
- WPC Fliptronics
- WPC DCS
- WPC-Security (WPC-S)
- WPC-95
- Bally MPU AS-2518-17
- Bally MPU AS-2518-35
- Stern MPU-100
- Stern MPU-200
- Bally 6803
- Gottlieb System 1
- Gottlieb System 80
- Gottlieb System 80A
- Gottlieb System 80B
- Gottlieb System 3
- Data East CPU Version 1/2
- Data East CPU Version 3
- Data East/Sega CPU Version 3b
- Capcom
- Electro-mechanical
Related tips
- Keep the glass on and the playfield covered
- Routine playfield and glass cleaning
- Cleaning and waxing the playfield
- Yellowed or bubbled playfield mylar
- Repairing a stripped playfield screw hole
Source: Pinball Machine Care & Maintenance, Bernard B. Kamoroff (Bell Springs Pinball Alley)