User manual BENDIX AD-IS AIR DRYER

[. . . ] ® Bendix® AD-IS® Air Dryer and Reservoir System RES GOVERNOR RESERVOIR (2) 21 PRI DELIVERY TO PRIMARY RESERVOIR DESICCANT CARTRIDGE MOUNTING HOLES - 4 PURGE VALVE PRESSURE PROTECTION VALVES (4) SAFETY VALVE 22 SEC DELIVERY TO SECONDARY RESERVOIR PURGE RESERVOIR UNL GOVERNOR UNLOADER (2) MOUNTING BOLTS (3) GOVERNOR EXH GOVERNOR EXHAUST 1 IN SUPPLY FROM COMPRESSOR HEATER / THERMOSTAT AD-IS AIR DRYER PART NUMBER STAMPED HERE ® PRESSURE PROTECTION VALVES (4) 23 AUX2 AUXILIARY DELIVERY PORTS (2) 24 AUX1 AUXILIARY DELIVERY PORTS (4) FIGURE 1 - AD-IS® AIR DRYER AND RESERVOIR SYSTEM DESCRIPTION The function of the Integrated Solution Air Dryer (AD-IS®) and Reservoir System is to provide heavy vehicles with an integrated vehicle air dryer, purge reservoir, governor and a number of the charging valve components in a module. The AD-IS® air dryer and reservoir system collects and removes air system contaminants in solid, liquid and vapor form before they enter the brake system. It provides clean, dry air to the components of the brake system which increases the life of the system and reduces maintenance costs. The necessity for daily manual draining of the reservoirs is eliminated. Air Connection Port ID Function/Connection QTY 1 IN 21 PRI 22 SEC 24 AUX 1 23 AUX 2 UNL RES EXH Inlet Port (air in). [. . . ] If the work is being performed on the vehicle's air brake system, or any auxiliary pressurized air systems, make certain to drain the air pressure from all reservoirs before beginning ANY work on the vehicle. If the vehicle is equipped with an AD-IS ® air dryer system or a dryer reservoir module, be sure to drain the purge reservoir. Following the vehicle manufacturer's recommended procedures, deactivate the electrical system in a manner that safely removes all electrical power from the vehicle. Never connect or disconnect a hose or line containing pressure; it may whip. Never remove a component or plug unless you are certain all system pressure has been depleted. must be of equivalent size, type and strength as original equipment and be designed specifically for such applications and systems. Components with stripped threads or damaged parts should be replaced rather than repaired. Do not attempt repairs requiring machining or welding unless specifically stated and approved by the vehicle and component manufacturer. Prior to returning the vehicle to service, make certain all components and systems are restored to their proper operating condition. For vehicles with Antilock Traction Control (ATC), the ATC function must be disabled (ATC indicator lamp should be ON) prior to performing any vehicle maintenance where one or more wheels on a drive axle are lifted off the ground and moving. GENERAL When rebuilding or replacing components of the air dryer and reservoir system use only genuine Bendix parts. For ease in servicing, the AD-IS® air dryer and reservoir system has been designed so that any of the following maintenance kits can be installed without removing the air dryer and reservoir system from the vehicle. CAUTION: Always depressurize the air dryer and reservoir system purge reservoir, and all other reservoirs on the vehicle to 0 p. s. i. before servicing the air dryer and reservoir system. 7 If, after completing the routine operation and leakage tests, it has been determined that one or more components of the air dryer and reservoir system requires replacement or maintenance, refer to the following list to find the appropriate kit(s). MAINTENANCE KITS AVAILABLE: · Service New Desiccant Cartridge Kit - Part Number 5008414: This kit contains the parts necessary to change the desiccant cartridge only. Delivery Check Valve Maintenance Kit - Part Number 5004052: This kit contains the parts necessary to replace the delivery check valve. Purge Valve Maintenance Kit - Part Number 5018313: This kit contains the parts necessary to replace and relubricate the purge valve sealing rings. Governor/Delivery Check Valve Kit - Part Number 5004049: This kit contains the parts necessary to replace both the governor and delivery check valve. 12 volt or 24 volt Heater and Thermostat Kit - Part Numbers 109495 & 109496: Contains a replacement heater and thermostat assembly and related components required for replacement. Purge Valve Housing Rebuild Kit - Part Number 5003547: This kit contains the parts necessary to rebuild the purge valve sub-assembly. Service New Purge Valve Housing Assembly - Part Number 800404: Contains a service new assembly and related components to change the purge valve subassembly. AD-IS® Air Dryer Replacement: Replaces the complete air dryer assembly. AD-IS® Air Dryer Splash Shield Replacement Kit Part Number 5006698. Purge Reservoir Drain Valve: Replaces the drain valve on the purge reservoir. · 2. [. . . ] If vehicle uses Holset compressor, inspect feedback check valve for proper installation and operation. Purge (air exhaust) time insufficient due to excessive system leakage. G. Refer to Symptom 1. 12 TROUBLESHOOTING CHART (Continued) SYMPTOM 3. Defective AD-IS® air dryer and reservoir system delivery check valve. [. . . ]