TM 9-2320-209-20-3-1 1. Lift dimmer switch (1) with protective cover (2) away from cab floor (3) as shown. 2. Lift dimmer switch (1) away from protective cover (2). NOTE Tag wires to dimmer switch (1) before taking them off so that they will be put back in same receptacles. 3. Unplug three connectors (4) from dimmer switch (1) and take out dimmer switch. END OF TASK 7-251