TM 9-2320-361-20 Table 2-3. Compressed Air and Brake System Troubleshooting (Contd). MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTlON Step 7. Compare air pressure reading indicated on test gage (1) to air pressure indicated on instrument panel gage. a. b. c. NOTE Step 7a applies to M275A2 only. If test gage (1) air pressure reading is the same as gage reading on instrument panel (exceeds maximum) and pressure protection valve continues to release pressure, replace air compressor (para. 8-26). If test gage (1) reading is below 85 psi (586 kPa), adjust governor (para. 8-29). If governor adjustment will not increase governor signal line (4) pressure above 85 psi (586 kpa) on test gage (1), replace air governor (para. 8-29). END OF TESTING! 2-69