TM 9-2320-361-10 2-14. STARTING THE ENGINE (ABOVE +20°F) (-6.7°C) (Contd) WARNING Ž Do not place vehicle in motion until warning buzzer stops and air pressure gage reads at least 85 psi. Failure to do this may result in brake failure, causing injury or death to personnel. Ž If warning buzzer does not go on when engine starts, stop engine and notify your supervisor. Failure to do so may result in injury or death to personnel. Ž If NBC exposure is suspected, all air filter media should be handled by personnel wearing protective equipment. Consult your unit NBC officer or NBC NCO for appropriate handling or disposal instructions. (3) Make sure air pressure gage (6) reads 85 psi to 120 psi. (4) Make sure air cleaner indicator (7) does not show red. (5) Make sure temperature gage (5) reads 180°F to 200°F. p. Stop engine immediately and notify your supervisor if any of the following occur: (1) Engine is vibrating or making excessive noise. (2) Oil pressure does not register or suddenly drops below 10 psi. (3) Engine temperature rises sharply to 210°F or more, or stays below 180°F. Change 3 2-83