BENDIX TU-FLO 400-500-1000 AIR COMPRESSOR manual Oil on the Outside of the Compressor

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Symptom:

What it may indicate:

What you should do:

 

 

 

2.0Oil on the Outside of the Compressor

2.1Oil leaking at compressor / engine connections:

2.2Oil leaking from compressor:

Engine and/or other accessories

Find the source and repair. Return the vehicle

leaking onto compressor.

to service.

(a)Leak at the front or rear (fuel ð Repair or replace as necessary. If the

pump, etc.) mounting flange.mounting bolt torques are low, replace the gasket.

(b)Leak at air inlet fitting.ð Replace the fitting gasket. Inspect inlet hose and replace as necessary.

(c)Leak at air discharge fitting. ð Replace gasket or fitting as necessary to ensure good seal.

(d)Loose/broken oil line fittings.

ð Inspect and repair as necessary.

(a)Excessive leak at head gasket.

ð Go to Test 1 on page 29.

(b)Leak at bottom cover plate. ð Reseal bottom cover plate using RTV silicone sealant.

(c)Leak at internal rear flange gasket. ð Replace compressor.

(d)Leak through crankcase.

ð Replace compressor.

(e)(If unable to tell source of leak.) ð Clean compressor and check periodically.

(a) ð

ð (c)

Head gasket and rear flange gasket locations.

3.0Oil at air dryer purge/exhaust or surrounding area

Air brake charging system functioning normally.

ðAir dryers remove water and oil from the air brake charging system.

Check that regular maintenance is being performed. Return the vehicle to service. An optional kit (Bendix piece number 5011327 for the Bendix® AD-IS™or AD-IP™air dryers, or 5003838 for the Bendix® AD-9™air dryer) is available to redirect the air dryer exhaust.

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Contents SD-01-326 General DescriptionOperation Intake and Compression LoadedCompressor & the AIR Brake System Polyurethane Sponge Strainer Fig Preventive MaintenanceCooling Removing and Installing Installation ENGINE-LUBRICATED TypesDRY Element Pleated Paper AIR Strainer FIG AIR Leakage TestsDisassembly Removing and DisassemblyConnecting ROD Assemblies Crankcase Base Plate or AdapterCrankcase Fig TU-FLO400 AIR Compressor Vertical Mount Engine LubricatedCleaning Inspection of PartsCrankcase and END Covers Inlet Valves and SeatsCylinder Bores PistonsRepairs Assembly Installing Cylinder BlockInstalling Crankshaft Pistons and Connecting RodsBaseplate Page Tabulated Data InstallationScheduled Maintenance Symptom Number Test ProceduresMaintenance & Usage Guidelines Introduction to the Air Brake Charging System Low Air Use High Air UseOil Test Card Not a valid test Results Symptom What it may indicate What you should doDiscontinue using this test Oil on the Outside of the Compressor Oil at air dryer purge/exhaust or surrounding areaOil in Supply or Service Reservoir air dryer installed MaintenanceOil in Supply Insufficient coolant flowOil in Supply or Service Reservoir Oil in ping tank Or compressor disCharge aftercooler Air brake Charging systemAir brake charging system seems slow to build pressure Releases air Compressor builds too much air Air dryer Safety valve releases air TimeLeaks coolant Coolant line fittings NoisyAction Test 2 Air Brake System and Accessory LeakageTest 1 Excessive Oil Leakage at Head Gasket Test 6 Compressor Unloader Leakage Test 4 Governor MalfunctionTest 5 Governor Control Line Page Bendix Air System Inspection Cup Basic Test Information Appendix a Information about the Basic Test Kit Bendix P/NChecklist for Technician Step B Measure the Charging System ContentsStep a Select one Is foundStep D Air Brake System Leakage Test Technical Bulletin Typical P&D, School Bus and Line HaulSystem Leakage Thawing Frozen Air Lines Page
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