TM 10-3930-669-20 VISUAL INSPECTION (1) Remove valve covers (Para 3-2). (2) Check valve clearance (Para 3-4). (a) If intake and/or exhaust valve clearance is not correct, adjust valves. (b) If intake and exhaust valve clearance is correct, valve adjustments OK. (3) Install valve covers. (4) Install cab (Para 15-2). 2-107