How To Perform An Air Brake Test On A School Bus 

That’s the one that I was looking for thank you 🙏🏾

Let air build up/compressor kicks out Bus off Static/Applied: 60 seconds not lose >3psi Fan brakes down Emerfency brake:70-60 psi alarm sound⏰️ 40-20 psi air brake engage Start bus At 85-100 psi should take >45 seconds to build air Parking brake hold in D /R

Best brake test video. Thank u!!

Best one yet

Thank you 😊