Delta 66-750 Service and Adjustments, Air Compressor Pump Intake and Exhaust Valves

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7.Visually inspect the motor drive pulley to verify that it is perpendicular to the drive motor shaft. Points B1 and B2 of Figure should appear to be equal. If they are not, loosen the set screw of the motor drive pulley and equalize B1 and B2, using care not to disturb the belt alignment performed in step 2.

8.Retighten the motor drive pulley set screw to 70-80 in.-lbs.

9.Reinstall belt guard.

Air Compressor Pump Intake and Exhaust Valves

Once a year have a Trained Service Technician check the air compressor pump intake and exhaust valves.

Inspect Air Lines and Fittings for Leaks

1.Turn the air compressor on to inspect for air leaks.

2.Apply a soap solution to all air line fittings and connections/piping.

3.Correct any leaks found.

IMPORTANT: Even minor leaks can cause the air compressor to overwork, resulting in premature breakdown or inadequate performance.

SERVICE AND ADJUSTMENTS

Unit cycles automatically when power is on. When doing Maintenance, you may be exposed to voltage sources,

compressed air or moving parts. Personal injuries can occur. Before performing any Maintenance or repair, unplug the compressor and bleed off all air pressure.

ALL MAINTENANCE AND REPAIR OPERATIONS NOT LISTED MUST BE PERFORMED BY TRAINED SERVICE TECHNICIAN.

Before servicing:

Unplug or disconnect electrical supply to the air compressor. Bleed tank of pressure.

Allow the air compressor to cool.

19-ENG

D26269

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Contents Structioin N M Anual Safety Guidelines Definitions Hazard Attachments & Accessories Hazard What can Happen HOW to Prevent IT Fire, Inhalation, Damage to Vehicle Surfaces Duty Cycle SpecificationsAccessories GlossaryTo Add Oil To Pump AssemblyTools Required for Assembly UnpackingLocation of the Air Compressor InstallationAnchoring of the Air Compressor Voltage and Circuit Protection Wiring InstructionsAir Distribution System Typical Compressed AIR Distribution System Know Your Air Compressor Description of Operation OperationPressure Release Valve The pressure How to StopBefore Each Start-Up To Check Safety Valve MaintenanceCustomer Responsibilities Oil To Drain TankMotor Pulley/Flywheel Alignment Air Filter Inspection and ReplacementAir Compressor Pump Intake and Exhaust Valves Service and AdjustmentsInspect Air Lines and Fittings for Leaks To Replace or Clean Check Valve To Replace Belt StorageProblem Cause Correction TroubleshootingPressure reading D26269 24-ENG 25-ENG D26269 AIR Compressor Diagram KEY Description Parts ListPump Diagram KEY Limited Warranty