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AIR BRAKE SYSTEM TROUBLESHOOTING I

I AIR BRAKE SYSTEM TROUBLESHOOTING SYMPTOM S,.. Compressor Passes excessWe oil Excessive build up and recovery lime (85-100 PSI in 40 seconds with engine at foll governed RPM) Noisy compressor Pumps beyond cut-out Governor Flutters Air Dryer Dryer is constanUy cycting or purging Dryer does not purge or exhaust air Supply Reservoir Excessive water accumulation Ex~ive oil accumulation Front BRAKE Reservoir Excessive oil or waler accumulation Loses air pressure Rear BRAKE Reservoir Excessive oil or water accumulaUon Loses air pressure Safety Valve Pops off at 150 PSI Pops off below 150 PSI Will not function One-Way Check Valve Allows air to bleed back to suoo!

Unloader valves sticking Restricted reservoir line Out of adjustment Excessive air leak in system ... Will not shut off air in tractor serv,ce line when trailer air pressure is below 45 PSI. fi) ... -If remote mounted brake valve, check linkage. 2.) Brakes Apply Too Slowly

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Transcription of AIR BRAKE SYSTEM TROUBLESHOOTING I

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