What was found
DURING TAXI THE BRAKES STARTED TO DRAG AND MAKE A GRINDING NOISE. UPON VISUAL INSPECTION, THE RT OB BRAKE WAS SMOKING AND ALSO VERY HOT. REMOVED NR 4 MLG WHEEL ASSY. INSPECTED BRAKE FOR DAMAGE AND FOD. NO DEFECTS FOUND. BRAKE SPUN FREELY. BLED NR 4 BRAKE ASSY. REMOVED EXCESSIVE AMOUNT OF AIR FROM BRAKE BLEEDERS. RE-PACKED WHEEL BEARING ON NR 4 WHEEL ASSY. REINSTALLED WHEEL ASSY. IAW CE750 MM 32-42-00 & 32-41-02. INSPECTED EMERGENCY BRAKE AIR BOTTLE. BOTTLE IS SERVICED CORRECTLY WITH NO LEAKS NOTED. IAW CE750 MM 12-10-16. NO LEAKS OR FURTHER DEFECTS NOTED.