After a full flipper rebuild with a new EOS switch, the right flipper still cannot get the ball up to the top lock.
Right flipper too weak for the top lock after a rebuild: lighter return spring
Cause: The return spring was strong enough to rob the flipper of power.
Checks
- Confirm the coil gets full voltage and the cabinet and EOS switches are clean and adjusted.
- Check the playfield pitch.
Fix
- Swap the return spring for a lighter WPC-style flipper spring.
Systems
Games
Related tips
- Firepower right flipper switches sit close to the pawl: a short kills the switch matrix
- Second-generation flipper rebuild: assemblies
- Three flipper mechanism generations
- Flippers too weak for the top lock: loose, arcing bridge rectifier connections
- Most flipper faults are EOS switch faults
- Games with an upper flipper switch on the EOS stack
- Flipper weak after a rebuild: EOS opening at the start of the stroke
- Second-generation flipper rebuild: the right small parts
Source: Pinball Repair help group!! (Facebook group)