Quinny 65040-AB manual Input Shaft Seal, Preparation for New Seal Installation

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Section VI - Servicing

Input Shaft Seal

NOTE

The QSD™ airend does not contain a scavenge system. A small fluid weep from the seal is normal.

Compressor shaft seals are wear items that may eventually have to be replaced. The input shaft seal on QSD™ units is field serviceable. The internal carbon ring seals on the individual stages are not field serviceable. To replace the input shaft seal, a complete understanding of the installation procedure and special tools are required. Should you decide to replace the seal yourself, ask your Quincy distributor for the complete illustrated instructions (available as a Service Alert) at the time you order the seal and special tools (see parts book for shaft seal and tool kit part numbers). If your distributor does not have a copy of these instructions, they can be ordered from Quincy Compressor at no charge.

Shaft seal replacement on QSD™ units requires the removal of the drive motor to allow use of the wear sleeve removal and installation tools:

1)Remove coupling guards and coupling halves.

2)Remove drive motor.

3)Remove the drive coupling hub and key from the compressor shaft.

4)Remove the four bolts that secure the seal adapter to the suction housing.

5)Insert two of the seal adapter retaining bolts into the seal adapter jack holes and turn clockwise pushing the seal adapter away from the gearcase housing.

6)Check the inboard face of the seal adapter to make sure no shims are removed. Do not lose or damage shims since they need to be reused. Disassemble the seal adapter for inspection or service by taking the following steps:

!CAUTION

After removing the seal adapter, do not allow the outer face of the bearing to move. This will cause the bull gear and shaft to fall in the gearbox, damaging the gear and bearings.

a)With the face of the seal adapter up, insert two small, flat screwdrivers under the outer lip of the fluid slinger and pop the slinger from the seal adapter bore.

b)Using a brass drift, tap the shaft seal assembly from the seal bore.

c)Inspect both seal lips for excessive wear, lip flaws or damage.

d)Inspect the outer o-ring on the fluid slinger for cuts or nicks.

e)To remove the seal wear sleeve, slide the wear sleeve removal tool over the end of the shaft and allow the jaws of the tool to snap on the backside of the wear sleeve. Tighten the outer shell of the tool down over the inner jaws. Using a ratchet and socket, turn the puller jackscrew clockwise in against the end of the compressor shaft. Do NOT use an impact wrench with this tool.

Preparation for New Seal Installation

1)Inspect the compressor shaft for burrs or deep scratches at the wear sleeve area. Using a 100 grit emery cloth, lightly sand horizontally any rust or Loctite® that was between the wear sleeve and shaft. Using a fine file or emery cloth, deburr the key area of the rotor shaft. Cover the keyway with masking tape to prevent any damage to the new seal during installation.

2)Clean the seal adapter with clean, fast drying solvent. Place the outer face of the seal adapter on a flat, hard surface. Remove the new triple-lip seal from the package and inspect for damage or imperfections on the seal lips.

3)Position the seal so the two lips that face the same direction face the gear and the single lip faces the drive motor.

4)With the lips of the seal facing the correct direction, apply a thin coat of Loctite® 290 to the outer steel case of the seal and position the seal in the seal adapter bore. Insert the seal driver over the seal. Insert the proper wear sleeve driver in the seal driver and tap the new seal into the bore with a medium sized hammer.

4)Preheat the seal wear sleeve to 350°F in a small oven. Do not preheat in warm oil. Apply a thin film of Loctite® to the inner diameter of the wear sleeve and immediately install on the compressor shaft using the proper wear sleeve driver. Drive the wear sleeve on the shaft until the driver bottoms on the shaft shoulder.

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Quincy Compressor® - QSD™

 

 

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Contents QSD Series Page Table of Contents Section V Maintenance or Service Preparation Standard Warranty Dimensional Data air-cooled Dimensional Data water-cooled Safety Precautions Section I GeneralSafety Alert Symbols Spare Parts Ordering InformationSection II Description General Description Compression Cycle and Air FlowMoisture Separator Cooling SystemLubricating Fluid System Water-cooledCapacity Control System Electrical System Back-up Control Shutdown ConditionsMain Power on Light IndicatorsSafety Sensors High Discharge Air Temperature LightsSection II Description Receiving Section III InstallationMoving the Unit to the Installation Site LocationPiping Connections Manual Shutoff Valve Piping Fit-upElectrical GuardsWater Flow Water QualityFluid Level Fan RotationStarting the Compressor Section IV Operating ProceduresPrior to Starting Stopping the Compressor Normal OperationTemperature Readings Water-cooled Pressure ReadingsStopping the Compressor Emergency Section V Preparing for Maintenance or Service This page Intentionally Left Blank Safety Fluid SpecificationsSection VI Servicing Air Filter Fluid LifePreparation for New Seal Installation Input Shaft SealSeal Installation Airend Sealing SystemPressure Switch Back-up Operating Mode Section VII Service AdjustmentsPressure Switch Adjusting Pressure SwitchThis page Intentionally Left Blank Back-up Mode Operation Section Viii Power$ync II OperationIntroduction to Power$ync Do not switch modes with power on the compressorSingle Machine Operational Modes Multiple Machine Operational ModeAuto Dual Time Delay Continuous RunPressure Settings Network Load Delay TimeNetwork Installation Connecting Cable to the Power$ync II Circuit BoardRocker Switch Settings Network Voltage Tests on Power$ync II Systems Network SetupUP/DOWN DEADBAND, F1 EDIT, Enter Return Power-up Displays Start-upSection Viii Power$ync II Operation Compressor in Back-up Mode U19 Memory Failure Contact Your Service RepresentativeDeadband Data Error Press F1 to Clear U19 Data Checksum Error Press F2 to UpdateU19 Data not Initialized Press F2 to Initialize Filter Needs Servicing Please Replace AS Soon AS Possible Additional Sensors Start-up DisplaysOperational Displays Compressor is StartingCompressor is Unloaded Minutes Left to Shutdown Compressor is UnloadedProgrammed Shutdown Compressor Mode of Operation Auto Dual Timed Stop Press F1 Compressor Settings and Maintenance DisplaysMode and Pressure Displays Press F2Read Pressure Settings pages 34-35 before Press F1 to change the load and unload pressuresMachine ID Setup Please Wait Network Configuration in ProgressMachine ID for this Compressor Press Enter to Accept Value UP/DOWN POSITION, F1 EDIT, Enter Return Before setting or changing a sequence, readSequence Network Data UP/DOWN Machine ID, Enter ReturnNetwork Configuration Menu DAY Monday SEQ AbcdDAY Monday SEQ To clear a particular sequence from the memory, press F1 Compressor Hourmeter Menu Compressor Hourmeters Filter Service HourmetersReset Service Hourmeters Intake Filter HoursPress F1 to Reset Fluid Hours Press Enter to Return Press F1 to Reset Fluid Filter Hours Press Enter to ReturnFluid Filter Hours Reset to Press Enter to Return Fluid Hours Reset to Press Enter to ReturnTo SET Time and Date Compressor Maintenance Menu Compressor Control TestTime Menu To View Current Time Time and Date Menu Current Time on this ControlUnload Press HorsepowerCompressor Control Test Menu Unload Valve Test Press F1 Fluid PressCompressor Diagnostic Menu View Shutdown LOG Unit Configuration DateModem Baud Rate Setup Network DiagnosticSection Viii Power$ync II Operation ETOL00 FTOL00 Network Connection Data Confidence Indicator is lit, the indicator will remain lit Modem INITIALIZATION** InitF1 to EDIT/ENTER to Accept Value Compressor has Shut Down Emergency Stop Button WAS Pressed Sequence Data Error Press F1 to Clear Schedule Data Error Compressor has Shut Down Take Corrective Action Back-up Mode until all faults have been corrected Inlet Temp Fluid Pressure STG 1 OUT Temp STG 2 in Temp Shutdown Log Messages Emergency Stop PressedMotor Overload STG 2 Discharge RTD Failure Control log has no entries at that point Section IX Troubleshooting Probable Causes Corrective Action Failure to StartSection IX Troubleshooting Unscheduled ShutdownProbable Causes Corrective Action Unscheduled Shutdown Probable Causes Corrective Action Low Air Delivery Frequent Air Cleaner CloggingHigh Discharge Air Temperature Frequent Fluid Filter CloggingCompressor does not Unload when there is no Air Demand Too Rapid Cycling Between Load and Unload Water in Buffing Air Vent Bowls Pressure Relief Valve ExhaustingExcessive Fluid in Buffing Air Vent Bowls Excessive Fluid in Gearbox Vent BowlLow Delivery Pressure High Interstage PressureErroneous Displays Microprocessor Will Not Display MessagesSection X- Maintenance Schedule Interval ActionDaily Operating Record Quincy Compressor QSD Quincy Compressor QSD
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