TM 9-2320-209-34-2-2 d. Inspection. FRAME 1 1. Put oil on two bearings (1). Turn bearing and look for roughness, pitting, scoring, cracks or chipped areas. 2. Check rotor (2) and two snaprings (3) for scoring, pitting or cracks. NOTE Rotor oil seal contact surface must have a uniform high polish. Minor surface defects may be removed by polishing with crocus cloth. 3. Check rotor (2) for cracks or breakage at edge of vane slots (4). GO TO FRAME 2 17-235