A. DOOR OPERATOR 1) CHECK FASTENERS, OPERATION OF CHECK, INTERLOCKS, ETC. ADJUST AS REQUIRED. 2) CHECK THE INERTIA OF DOORS. MAKE ADJUSTMENTS AS REQUIRED. 3) CHECK OIL IN GEAR CASE. CHANGE IF NECESSARY. B. SELECTOR 1) CHECK AND ADJUST SELECTOR FOR PROPER OPERATION. CHECK GEARS AND CHAINS FOR WEAR AND PROPER LUBRICATION. 2) CHECK STILE CHANNELS FOR BENDS OR CRACKS, ALSO CAR FRAME, CAMS AND SUPPORTS. 3) CHECK GATE OR DOOR UPTHRUST, STILL GROOVES, BOTTOM GUIDES, ETC. 4) CHECK SELECTOR TAPE HITCHES AND BROKEN TAPE SWITCH. C. CONTROLLERS 1) CLEAN WITH BLOWER. 2) CHECK ALIGNMENT OF SWITCHES, RELAYS, TIMERS, ETC. CLEAN AND MAKE ADJUSTMENTS AS NECESSARY. 3) CHECK ALL CONDENSORS, RESISTANCE TUBES AND GRIDS. 4) CHECK OIL IN OVERLOAD RELAYS...
