4000 Switch Machine - Alstom

Throw BarPerform the following procedure, in sequence given, to remove and replace the throw bar.Adjustments or special tools, if required, are described in the procedure.WARNINGPower to switch machine must be cut off at control room beforeperforming this removal or replacement procedure.Removal Procedure1. Remove motor end, center, and point detector end covers along with cross bracesbetween covers.2. Remove all connecting hardware attaching throw bar to switch points.3. Remove amplifier, manual operation switch, motor with 5:1 gearbox, 30:1 gearbox, handthrow, and main drive.4. Remove the seven large socket head cap screws attaching switch machine housing toswitch machine base plate.5. Raise housing by pulling upward while removing throw bar.Replacement Procedure1. Raise housing by pulling upward while installing replacement throw bar.2. Remove all connecting hardware attaching throw bar to switch points.3. Replace the seven large socket head cap screws attaching switch machine housing toswitch machine base plate.4. Replace manual operation switch, motor with 5:1 gearbox, 30:1 gearbox, hand throw,and main drive.5. Replace motor end, center, and point detector end covers along with cross bracesbetween covers.6. Operate switch machine to verify proper operation.P2444, Rev. Jan/07 6-20ALSTOM Signaling Inc.