Bendix-commercial-vehicle-systems TROUBLE SHOOTING COMPRESSOR Manual do Utilizador

*This guide is only for vehicles that use desiccant air dryers.The guide consists of an introduction to air brake charging system components, a table

Symptom: What it may indicate: What you should do: 10(g) Restricted air inlet (not enough air to compressor).Check compressor air inlet line for

11Symptom: What it may indicate: What you should do: 10.0 Air charging system doesn’t build air. (a) Governor malfunction*. (b) Restricted discha

Symptom: What it may indicate: What you should do: 1215.0 Compressor constantly cycles (compressor remains unloaded for a very short time.)(a) Air

13Symptom: What it may indicate: What you should do: This guide attempts to cover most compressor system problems. Here are some rare sources of pr

14TestsExterior leaks at the head gasket are not a sign that oil is being passed into the air charging system. Oil weepage at the head gasket does no

1. Ensure that the governor control line from the reservoir is located at or near the top of the reservoir. (This line, if located near the bottom of

16NOTES

Bendix® Air System Inspection Cup (BASIC) Test InformationAppendix: Information about the Bendix® BASIC™ Test Kit (Bendix P/N 5013711)* If the number

Footnotes: 1 Typical air dryer cartridge replacement schedule is every 3 yrs/ 300K miles for low air use vehicles and every year/100K miles for high

Park the vehicle on level ground and chock wheels. Build system pressure to governor cut-out and allow the pressure to stabilize for one minute. 1: O

2Introduction to the Air Brake Charging SystemPowered by the vehicle engine, the air compressor builds the air pressure for the air brake system. The

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3Compressor with up to 25% duty cycleFootnotes: 1 With increased air demand, the air dryer cartridge needs to be replaced more often.2 Use the drai

4Air Brake Charging System TroubleshootingHow to use this guide:Find the Symptom(s) that you see, then move to the right to nd the possible causes (

5Symptom: What it may indicate: What you should do: 2.2 Oil leaking from compressor:(a) Excessive leak at head gasket.(b) Leak at bottom cover p

64.0 Oil in supply or service reservoir(air dryer installed)(If a maintained Bendix® PuraGuard® system lter or Bendix® PuraGuard® oil coalescing lt

7Symptom: What it may indicate: What you should do: (e) Air compressor discharge and/or air dryer inlet temperature too high.(f) Insufcient cool

Symptom: What it may indicate: What you should do: 8(i) Poorly ltered inlet air (poor air quality to compressor).(j) Governor malfunction o

9Symptom: What it may indicate: What you should do: 8.0 Oil in ping tank or compressor discharge aftercooler.Air brake charging system is function