For ease of maintenance all replaceable. Compressor fails to unload dissasembelind a Bendix air dryer service manual and inspection.
R 12 Air Brake Relay Valve With Horizontal Delivery Ports Air Brake Valve Relay
Instruction Sheets AerofinerII Air Dryer Heating Elements English-Spanish Espaol English 115 kB.
How to replace purge valve on bendix air dryer. Constant leaking of air at air dryer purge valve exhaust non-charging mode Defective check valve assembly in air dryer end cover. Check the end cover o-ring to be certain it is clean and lubricate the o-ring with a barium base lubricant such as Bendix 246671. See Bendix publication BW5057 Air Brake Handbook.
Different dryers take different scenarios but none are hard to service. Threaded air connections and the purge valve. Pressure drop should not exceed 1 psi per minute.
Air connections and the purge valve assembly. Install the purge valve assembly 1 in the air dryer. AD-SP air dryer aluminum body contains the following serviceable components or assemblies.
The air dryer remains in the purge mode until the air system pressure drops below the governor cut-in pressure thereby placing both the compressor and the air dryer in the charge mode. Make certain the purge valve assembly is fully seated against the air dryer body. Build system pressure allow air dryer to purge and observe air gauge in supply reservoir.
The removable purge valve assembly incorporates the purge valve mechanism and a turbocharger cut-off feature that is designed to prevent loss of engine turbo boost pressure during the purge cycle of the Bendix. In addition the non-serviceable purge control valve is located in the body. After the purge reservoir pressure is depleted the air dryer desiccant has been regenerated and is now ready for the next charge cycle.
Air dryer consists of a desiccant cartridge and a. Tighten or replace as needed then Dryer purges frequently repeat the air dryer charge-purge cycle and every 4 minutes or less observe the gauge installed in the supply. Perform tests 1 to 6 in the order presented.
Contains a check valve assembly a safety valve three. All service and replacement can be accomplished from the exterior of the dryer. Secure the purge valve assembly in the air dryer using the retaining ring 5.
Leaking purge valve control piston o-ring. Instruction Sheets AerofinerII Purge Valve Repair Kit Service Instruction RN970 English-Spanish 10-01. Normal service and parts replacement does not require removal of the air dryer from the vehicle.
Page 18 Check Valve Feedback Line Typical Drop-In Air Dryer End Cover When installing a Bendix Drop-In air dryer in a system equipped with a Holset E or QE compressor remove the Holset ECON valve along with. Air dryer and reservoir system. Do not force the purge piston as serious damage may be caused to the seals.
Espaol English 214 kB. Park the vehicle on a level surface and prevent movement by means other than the brakes. 27-05-2016 Follow the small line out of dryer and find at other end of that air line the ck.
06-05-2020 The purge valve is a replaceable service item. The turbocharger cut-off valve heater and thermostat assembly delivery check valve assembly and combined purge and relief valve assembly. Carefully ease the purge valve assembly into position using a gentle twisting motion.
Becomes necessary to replace the entire air dryer. The delivery check valve. Compressor discharge line may still contain residual pressure.
Page 13 287053 AD-2 AIR DRYER PURGE VALVE MAINTENANCE tubing or high temperature hose. For ease of maintenance all replaceable assemblies. Valve that lets purge valve release air thats left over from inside air compressor it will unscrew from main air line after small line is off Thanks for the reply.
This kit contains the parts necessary to replace system will not cycle excessively. Die cast aluminum end cover secured to a cylindrical steel. Valves threaded air connections and the purge valve assembly.
Install the o-ring on the end cover and install the end cover in the dryer body. Drain all reservoirs to 0 psi. This kit contains the parts necessary to BRAKING SYSTEM PROTECTION replace and relubricate the purge valve sealing rings.
Sometimes you can clean them but if youre not really handy its better to either replace the bottom plate complete or just the purge valve itself. Air dryer and reservoir system purge control channel. Air dryer and reservoir system purge piston moves down in response to this air pressure causing the purge valve to open to the atmosphere and the turbo cut-off valve to close off the supply of air from the compressor this will be further discussed in.
Purge Valve Maintenance Kit - Part Number 5018313. The removable purge valve assembly incorporates the purge valve mechanism and a turbocharger cut-off feature that is designed to prevent loss of engine turbo boost pressure during the purge cycle of the AD-IS. The air dryer purge piston cycles rapidly in the compressor unloaded non-compressing mode.
Similarly the governor also supplies air pressure to the AD-IS. Outer shell with eight cap screws and nuts. Remove drain cock or valve in supply reservoir wet tank and install air gauge.
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