Table 2-2. Operator/Crew Preventive Maintenance Checks and Services (Contd). ITEM NO. INTERVAL ITEM TO CHECK/ SERVICE PROCEDURE NOT FULLY MISSION CAPABLE IF: TM 9-2320-386-10 2-24 5 Before Instru- (Contd) Operation ments (Contd) (Contd) g. Air pressure gauge (1) – 90-120 psi g. Air pressure (621-827 kPa). gauge reads 60 psi (414 kPa) or below. h. Battery/generator gauge (2) – in h. Battery/gener- green area. ator gauge needle is in red area. i. Fuel gauge (3) – indicates fuel level. 6 Service Operate service brakes (7) to determine Service brakes do not brakes stopping ability. Check for pulling to operate properly, or one side, grabbing, or other abnormal brake pedal goes operation. within two inches of floorboard. 7 Trans- Shift transmission through all driving Transmission control mission ranges. lever is stiff or binding. WARNING If air pressure reading is below 60 psi (414 kPa), braking will require excessive pedal force. Shut down engine and check to see what is wrong. Failure to obtain correct air pressure may result in injury or death to personnel. 1 2 3 WARNING Ensure adequate air pressure has been attained prior to performing step a, and be prepared to apply the service brakes if necessary. CAUTION Do not hold engine speed at 2,000 RPM for more than five seconds while performing step a.