SD-08-2417 Bendix® AD-IS® EverFlow™ Assembly EVERFLOW™ MODULE GOVERNOR EVERFLOW™ ELECTRONIC MODULE PURGE RESERVOIR AD-IS® EVERFLOW™ ASSEMBLY AD-IS® AIR DRYER RES GOVERNOR RESERVOIR (2) 21 PRI DELIVERY TO PRIMARY RESERVOIR DESICCANT CARTRIDGE MOUNTING HOLES - 4 PURGE VALVE PRESSURE 22 SEC DELIVERY TO SECONDARY RESERVOIR SAFETY VALVE PURGE RESERVOIR MOUNTING BOLTS (3) UNL GOVERNOR UNLOADER (2) HEATER / THERMOSTAT GOVERNOR EXH GOVERNOR EXHAUST AD-IS® AIR DRYER PART NUMBER STAMPED HERE 1 IN SUPP
DESCRIPTION The function of the AD-IS® EverFlow™ assembly is to provide heavy vehicles that use large amounts of air with a dryer system that facilitates continuous flow drying. This assembly provides, in a single package, all the components necessary to operate two dryers. The assembly determines if high air demand is needed and continuously switches between dryers every 30 seconds until the high air demand ceases.
EverFlow™ Module Governor GOV RES CON 3/8" CON Schrader Valve From Engine SEC RES 1/4" Supply IN CON CON CON 1/2" CON IN Primary Reservoir 1/2" PRI OUT AD-IS® EFM Secondary Reservoir Check Valve Supply IN Accessories Compressor Dryer OUT CON CON EverFlow™ IN Manual Valve Pressure Protection Valve (Optional) Bulk Offload CTI CTI System Bulk Tanker Compressor OUT Discharge Line Unloader Valve Note: The AD-IS® air dryer purge piston has a purge control channel drain.
the turbo cut-off valve to close off the supply of air from the compressor (this will be further discussed in the Turbo Cut-off Feature section). Water and contaminants which have collected in the dryer are expelled immediately when the purge valve opens. Also, air which was flowing through the desiccant cartridge changes direction and begins to flow toward the open purge valve.
WARNING! This air dryer is intended to remove moisture and other contaminants normally found in the air brake system. Do not inject alcohol, anti-freeze, or other de-icing substances into or upstream of the air dryer. Alcohol is removed by the dryer, and reduces the effectiveness of the device to dry air. Use of these or other substances can damage the air dryer and will void the warranty. OPERATION & LEAKAGE TESTS (For additional information order "Air Leakage Video" BW2327) 1.
working in the engine compartment, the engine should be shut off and the ignition key should be removed. Where circumstances require that the engine be in operation, EXTREME CAUTION should be used to prevent personal injury resulting from contact with moving, rotating, leaking, heated or electrically charged components. RESULT IN THE AUTOMATIC APPLICATION OF THE VEHICLE SPRING BRAKES WITHOUT PRIOR WARNING. 3.
vehicle with a limited number of reduced braking capacity applications before the parking brakes automatically apply and stay on.
LOCK TABS SPLASH SHIELD COVER SPLASH SHIELD BRACKET FIGURE 5 - SPLASH SHIELD BRACKET AND COVER - (EXPLODED VIEW) Guidelines outlined on pages 5-6 in this document. Also, always depressurize the air dryer purge reservoir before servicing the air dryer. This procedure does not require removal of the AD-IS® air dryer from the vehicle. 1. Remove the line from governor and mark for easy reinstallation. 2. Remove the bolts attaching the governor to the AD-IS® air dryer and retain for reassembly. 3.
GOVERNOR GASKET (SPECIAL GASKET, SEE NOTE 6) SMALL O-RING GOVERNOR (NON-ADJUSTABLE, 130 PSI CUT-OUT) BOLTS CHECK VALVE BODY SPRING LARGE O-RING ADAPTER FIGURE 6 - AD-IS® AIR DRYER DELIVERY CHECK VALVE ASSEMBLY 1. Lubricate the smaller o-ring and check valve body with barium or silicon grease. 2. Install this o-ring on the check valve body by sliding the o-ring over the set of 4 tapered guide lands. The o-ring groove holds the o-ring in its correct location. 3.
METAL BLACK RUBBER HARD SEAT SOFT SEAT FIGURE 7- IDENTIFICATION OF HARD AND SOFT SEAT PURGE VALVES TROUBLESHOOTING THE AD-IS ® EVERFLOW ™ ASSEMBLY Consult the service data sheet, SD-08-2418, for the dryer used in your AD-IS® EverFlow™ assembly. The service data sheet contains information that is useful for maintenance and service of the air dryers. 1. Excessive dryer purging in the loaded cycle. • The purge valves in both dryers must have soft-seat turbo cut-off valves. See Figure 7.
