BENDIX BW2677 User's Manual
Contents
1. Bend y In Cab Air Brake System Device Inspection Please refer to BW1396 Air Brake System Troubleshooting for Troubleshooting Information Customer Name Completed By Brake Requires Needs System Repair or Further Component Adjustment Diagnosis Notes Clarification Impact Low Pressure Warning Indicator Operation of an Audible and Visual Alarm ABS Dash Light or Lights Operation of ABS Warning Dash Lights Air Dryer a Soo Compressor Compressor Build Up Time Dash Air Gauges Requires Supply System Leakage Full Pressure Engine Stopped Parking Brake Applied Dash Air Gauges Requires Service System Leakage Full Pressure Engine Stopped Parking Brake Released BW2677 2010 Bendix Commercial Vehicle Systems LLC a member of the Knorr Bremse Group All Rights Reserved Visit www bendix com for additional information or talk to your Bendix Account Manager 60 PSI there must be a visual alarm and may be an audible alarm in the cab See Dual Circuit Brake System Troubleshooting Test 1 Checklist The ABS warning lamp should illuminate and extinguish when the ignition is turned on If the ABS warning lamp remains lit the system is not functional and needs further diagnosis Contact the system manufacturer for troubleshooting information The air dryer needs to purge at maximum system pressure The initial purge of Bendix air dryers is a loud blast of air followed by a slowing escape of a2. ir for 20 to 30 seconds The compressor should build from 85 PSI to 100 PSI in 40 seconds at maximum engine RPM See Dual Circuit Brake System Troubleshooting Test Checklist 1 Build full system pressure apply the parking brakes stop the engine and allow the pressure to stabilize The pressure should not drop on the dash gauges more than 2 PSI in two 2 minutes See Dual Circuit Brake System Troubleshooting Test 2 Checklist 2 Apply and hold the service brakes while conducting this test Build full system pressure release the parking brakes and stop the engine and allow the pressure to stabilize The pressure should not drop on the dash gauges more than 4 psi in two 2 minutes See Dual Circuit Brake System Troubleshooting Test 3 Checklist 3 driver must be warned if the primary or secondary brake systems fail Non functioning ABS systems can increase stopping distance and cause vehicle instability After repairs some ABS warning lamps will remain on until the vehicle is driven over 5 mph Short purge cycles are an indication of air system leakage or the need for air dryer maintenance If not repaired contamination will enter the air system Excessive build times are an indication of a problem in the Supply system or excessive system leakage Excessive build times can cause compressor failure and possible dragging brakes Excessive system leakage can cause compressor failure the air dryer to cycle more often excessi
3. ve water build up in the reservoir and can lead to possible dragging brakes Excessive system leakage can cause compressor failure and possible dragging of the vehicle brakes Printed on recycled paper
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