The ramp motor (solenoid 22 in test, shown as Relay B) no longer runs, although its fuses and driver transistor test good, AC is present at its plug, and the motor runs on the bench.

Ramp motor does nothing in test: Relay B next to the motor is misaligned

Cause: The ramp motor is switched by a relay (Relay B) mounted right beside the motor under the playfield, and that relay had gone out of alignment.

Checks

• Find Relay B beside the ramp motor and watch it in test: it should pull in and close its contacts.
• Check the relay's contacts and armature alignment.

Fix

• Realign the relay (and clean its contacts) so it closes reliably.

The ramp motor runs on about 50 V AC; keep fingers clear of the relay contacts with the game on.

Systems

• Gottlieb System 3

Games

• Gladiators

Related tips

• Car crash flipper dead after reassembly: the S relay's lever has slipped out of place

Source: Pinball Repair help group!! (Facebook group)