BENDIX TU-FLO 400-500-1000 AIR COMPRESSOR manual

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3.Do not attempt to install, remove, disassemble or assemble a component until you have read and thoroughly understand the recommended procedures. Use only the proper tools and observe all precautions pertaining to use of those tools.

4.If the work is being performed on the vehicle’s air brake system, or any auxiliary pressurized air systems, make certain to drain the air pressure from all reservoirs before beginning ANY work on the vehicle. If the vehicle is equipped with an AD- ISair dryer system or a dryer reservoir module, be sure to drain the purge reservoir.

5.Following the vehicle manufacturer’s recommended procedures, deactivate the electrical system in a manner that safely removes all electrical power from the vehicle.

6.Never exceed manufacturer’s recommended pressures.

7.Never connect or disconnect a hose or line containing pressure; it may whip. Never remove a component or plug unless you are certain all system pressure has been depleted.

8.Use only genuine Bendix® replacement parts, components and kits. Replacement hardware, tubing, hose, fittings, etc. must be of equivalent size, type and strength as original equipment and be designed specifically for such applications and systems.

9.Components with stripped threads or damaged parts should be replaced rather than repaired. Do not attempt repairs requiring machining or welding unless specifically stated and approved by the vehicle and component manufacturer.

10.Prior to returning the vehicle to service, make certain all components and systems are restored to their proper operating condition.

11.For vehicles with Antilock Traction Control (ATC), the ATC function must be disabled (ATC indicator lamp should be ON) prior to performing any vehicle maintenance where one or more wheels on a drive axle are lifted off the ground and moving.

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Contents SD-01-326 General DescriptionOperation Intake and Compression LoadedCompressor & the AIR Brake System Polyurethane Sponge Strainer Fig Preventive MaintenanceCooling DRY Element Pleated Paper AIR Strainer FIG Removing and InstallingInstallation ENGINE-LUBRICATED Types AIR Leakage TestsConnecting ROD Assemblies DisassemblyRemoving and Disassembly Crankcase Base Plate or AdapterCrankcase Fig TU-FLO400 AIR Compressor Vertical Mount Engine LubricatedCleaning Inspection of PartsCylinder Bores Crankcase and END CoversInlet Valves and Seats Pistons Repairs Installing Crankshaft AssemblyInstalling Cylinder Block 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 Charge aftercooler Air brake Oil in ping tankOr compressor dis 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/NStep a Select one Checklist for TechnicianStep B Measure the Charging System Contents Is foundStep D Air Brake System Leakage Test Technical Bulletin Typical P&D, School Bus and Line HaulSystem Leakage Thawing Frozen Air Lines Page