Setting the end-of-stroke switch gap
Steps
- At rest, the EOS switch must be firmly closed with good contact pressure.
- Bend the blades so the switch opens only near the end of the flipper's travel, ending up about 1/8 to 1/4 in open with the flipper fully up.
- If the switch opens too early in the stroke, the flipper is weak.
- Use the good flipper's EOS switch as a model, and expect to make several attempts.
- Test play; if the flipper is still weak, the contact at rest is poor or it opens too soon.
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
- What the flipper end-of-stroke switch does
- End-of-stroke switches: pre-Fliptronics versus Fliptronics
- Weak flippers on an EM: adjust the end-of-stroke switch before buying coils
- Weak flipper: dirty end-of-stroke switch
- Cleaning and adjusting the cabinet flipper switch
- Flipper EOS switch: gap, checking and cleaning
Source: Pinball Machine Care & Maintenance, Bernard B. Kamoroff (Bell Springs Pinball Alley)