4 4P 130E5 r p 1 I J i 2 R gf JQ V V BRAKE SUPPLY VALVE PRESSURE PROTECTION VALVE BRAKE SAFETY VALVE A A w Q Q C 0 Y I I Q A K C i A u w Q L I u E2 A E w I 0 E O A 0 A BRAKE SAFETY VALVE BRAKE MODULATOR VALVE I BRAKE LIMITING VALVE I vgr as I E I 1 R M 5 J W JK I EQ I W A E MOISTURE EJECTOR VALVES I O I 1 I I 4 w Y PARKING BRAKE INVERSION VALVE PARKING BRAKE CONTROL VALVE I 4P 13025 1983 88 R6 BRAKE VALVE Emu ncATn N CHART W JE4 J SUPPLY PRESSURE PROT SAFETY MODULATOR LlMITING MOISTURE E 1EcToR RK RRK INVERSION PK BRK com VALVE 1987 GENERAL MOTORS SERVICE PARTS OPERAT ONS M SB G i 4 000 GROUP 4G 62 O9 87