Converting System 3-7 flippers to WPC-style mechanisms: main parts
Complete assemblies are C-13174-L and C-13174-R; rebuild kit A-13524-1 (non-Fliptronics WPC) has the EOS switch, plunger/link/pawls, coil stops, sleeve, springs and screws but no base plates. Base plates B-13104-L/R; nylon bushing 03-7568 (held by three 6-32 bolts, 3/8" long, with nuts); EOS bracket 01-9375; coil stop A-12111 with two 10-32 x 3/8" allen bolts (not A-12390); coil sleeve 03-7066-5; EOS switch 03-7811 (not SW-1A-194); coil bracket 01-7695, or the older 01-7695-1 when using a non-plunger spring.
Systems
Related tips
- Flipper rebuild part numbers for System 11
- WPC flipper rebuild kits by era
- Flipper rebuild kits
- Coil sleeves and flipper rebuild spares
- Flipper rebuild step 1: remove and check the coil stop
- Weak flippers from pitted EOS switches
- Flipper coil burns or flipper very weak after a rebuild
- Three flipper mechanism generations
Source: Repairing Williams System 3 to System 7 Pinball 1977 to 1984, Part Three, Clay Harrell (pinrepair.com)