n1. AXLE DIFFERENTIAL(S) NOISY START 1.            TEST OPTIONS                        KNOWN INFO              Nothing        POSSIBLE PROBLEMS        WARNING Read WARNING on following page. Visual inspection     REASON FOR QUESTION     Leaking planetary wheel ends and/or wheel bearings. Leaking axle differential and/or pinion drive yoke. Damaged axle differential. Low or contaminated oil in differential. Faulty pinion drive yoke. Are planetary wheel ends, and wheel bearings free from leaks? NO YES Replace seal (para 10-2). 2. NO YES             KNOWN INFO              No visible leaks of planetary wheel ends or wheel bearings.        POSSIBLE PROBLEMS        Leaking axle differential and/or pinion drive yoke. Damaged axle differential. Low or contaminated oil in differential. Faulty pinion drive yoke.            TEST OPTIONS            Visual inspection     REASON FOR QUESTION     Leaks may indicate worn or damaged seals and cause planetary wheel ends or wheel bearings to make noise. Are axle differentials and pinion drive yoke free from leaks? Notify DS Maintenance. 2-1896          Change 1 TM 9-2320-365-20-2 INITIAL SETUP   Equipment Conditions     Engine shut down (TM 9-2320-365-10). Leaks may indicate worn or damaged seals and cause axle differential or pinion drive yoke to make noise.   Tools and Special Tools     Tool Kit, Genl Mech (Item 44, Appendix C)