Renewing coil sleeves on action coils
Steps
- Pick the hard-working coils: flippers, pop bumpers and slingshot kickers. New sleeves once a year keep them strong.
- Unscrew one or both coil brackets and slide the coil off.
- Swap in a new sleeve of the right length and type for that coil.
- Refit the coil and tighten the bracket screws firmly, replacing any missing ones; a tight bracket gives a stronger stroke.
- Use the matching assembly as a reference if unsure.
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
- Replace coil sleeves on the playfield action coils
- Coil sleeves and plungers to keep
- Coil sleeves by mechanism
- Renew sleeves on flipper, pop bumper and sling coils
- Testing the diode on a coil
- Coil diode polarity
- Ordering the right coil
- Coil sleeve part numbers by use
Source: Pinball Machine Care & Maintenance, Bernard B. Kamoroff (Bell Springs Pinball Alley)