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QSB Series 

Rotary Screw Belt Drive Air Compressor

Instruction Manual

This manual contains important safety information and should be made available to 

all personnel who operate and/or maintain this product. Carefully read this manual 

before attempting to operate or perform maintenance on this equipment.

Manual No. 65001-RA

December 2001 Edition

Summary of Contents for QSB Series

Page 1: ...s manual contains important safety information and should be made available to all personnel who operate and or maintain this product Carefully read this manual before attempting to operate or perform...

Page 2: ......

Page 3: ...III Installation Receiving 12 Moving the Unit to the Installation Site 12 Location 13 Piping Connections 14 Relief Valves 14 Pressure Vessels 14 Electrical 15 Guards 15 Manual Vent and Shutoff Valves...

Page 4: ...tions 36 Lubrication 37 Fluid Level 37 Fluid Filter 38 Factors Affecting Fluid Life 38 Fluid Analysis Program General 39 QuinSyn PG 40 QuinSyn XP 41 QuinSyn Plus 42 QuinSyn Fluids 43 QuinSyn Flush 44...

Page 5: ...iod Standard Warranty Quincy Compressor Industrial Screw Products QSB T Rotary Screw Air Compressors Seller s sole obligation on this warranty shall be at its option to repair replace or refund the pu...

Page 6: ...d IMPORTANT Throughout this manual we have identified key hazards The following symbols identify the level of hazard seriousness DANGER This symbol identifies immediate hazards which will result in se...

Page 7: ...ld result in the rupturing or explosion of some compressor component Do not change the pressure setting of the pressure relief valve restrict the function of the pressure relief valve or replace the p...

Page 8: ...sible for typographical errors Spare Parts Ordering Information Quincy Compressor maintains replacement parts for Quincy compressors A parts manual is shipped with all new machines Order parts from yo...

Page 9: ...Section I General Quincy Compressor QSB T 5 MODEL IDENTIFICATION...

Page 10: ...ompression cycle of a rotary screw compressor is a continuous process from intake to discharge with no reciprocating mechanisms starting and stopping as found in reciprocating compressors The compress...

Page 11: ...ompressor of approximately 180 F Water cooled Fluid Coolers Water cooled fluid coolers are of the shell and tube design Fluid passes through the shell transferring its heat to the water flowing throug...

Page 12: ...inlet valve is held in a closed position preventing the intake of air into the compressor and serving as a check valve preventing reverse air fluid flow through the inlet valve and air filter Auto Dua...

Page 13: ...f on until the excess demand has been satisfied Again working with the standard Auto Dual control the second machine would time out and turn itself off after the demand dropped Load No Load Optional I...

Page 14: ...ntrols include the selector switch pressure switch timer high air temperature safety switches solenoid and the various indicator lights Other incoming line voltages are available as options The compre...

Page 15: ...icates excessive pressure differential across the air fluid separator element It is used to determine separator element change intervals Gauges Hourmeter This gauge indicates actual hours of operation...

Page 16: ...ng carrier within 15 days of delivery The delivering carrier must prepare a damage report Itemized supporting papers are essential to filing a claim Read the compressor nameplate to be sure the compre...

Page 17: ...ed exhaust air must be exhausted outside to prevent high temperature conditions in the compressor room If the room is not properly ventilated compressor operating temperatures will increase and cause...

Page 18: ...sized to protect the system Never change the pressure setting or tamper with the valve Only the relief valve manufacturer or an approved representative is qualified to make such a change DANGER Relie...

Page 19: ...ide diameter shall have a safety device at the source of supply or branch line to reduce pressure in case of a hose failure These pneumatic safety devices are designed to prevent hoses from whipping w...

Page 20: ...t least as large as the inlet valve opening and increased several sizes for extremely long piping runs The piping must be leak free and clean after fabrication Compressor Rotation Compressor rotation...

Page 21: ...Quincy Compressor QSB T 17 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 22: ...ls and guards are in place and securely mounted Check fuses circuit breakers and thermal overloads for proper size Close the main power disconnect switch and jog the starter switch button to check the...

Page 23: ...he pressure is displayed in the numeric display NOTICE Aflashing on the digit display accompanied by an LED on the left signifies a faulty sensor eitherthe pressure transducerorthe temperature probe A...

Page 24: ...essing the UP and DOWN keys simultaneously until the LED lamps on the left start to flash When the numeric display flashes 00 Release the UP and DOWN keys and use the UP key to select the desired menu...

Page 25: ...dicates compressor model QSF or QSB QMB LED 4 Set the total running hours this should only be adjusted during controller replacement to match recorded time from the previous one Use UP or DOWN to sele...

Page 26: ...to prevent any backup of air flow into the area to be serviced NEVER depend upon a check valve to isolate the system 3 Open the manual vent valve and wait for the pressure in the system to be complet...

Page 27: ...Quincy Compressor QSB T 23 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 28: ...flammable solvent such as gasoline or kerosene for cleaning air filters or compressor parts Safety solvents are available and should be used in accordance with their instructions CAUTION Unusual noise...

Page 29: ...will stop particles of 10 microns in size This element is replaceable and should not be cleaned Service intervals of the air filter element depends on ambient conditions and should be established by c...

Page 30: ...from the airend into the seal cavity and appear as a leak If the check valve is stuck closed the seal cavity will not scavenge Replace if necessary Remove the four bolts securing the seal adapter to t...

Page 31: ...small oven to 350 F 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...

Page 32: ...t pressure The pressure switch should unload the compressor by the time it reaches the 20 load point Raising the pressure without changing the compressor speed above factory settings will result in hi...

Page 33: ...ent check alignment in at least three places after rotating one of the sheaves 120 each time Misalignment comes in three varieties Horizontal angular vertical angular and parallel Sheave alignment sho...

Page 34: ...checked monthly and confirmed to be within tension requirements listed in the following table If not adjust per instructions on page 32 QSB T 10 30 HP TENSIONING DATA SPRING HEIGHT IN BELT TENSION LBS...

Page 35: ...of pounds pressure Read at bottom edge of ring Slide the o ring to back to 0 pounds before reusing 5 Compare deflection force with range of forces listed for unit being tested If less than minimum rec...

Page 36: ...alignment rotate the motor to the opposite end of travel and recheck sheave alignment Note These two alignments should be within 1 16 inch of each other if not realignment is required NOTICE Before th...

Page 37: ...elts weakening or breaking the tensile cords 7 Rotate drive by hand to help seat belts in sheaves Check motor base it should be level within 5 degrees 8 Tension the belts by turning the jackbolt 2 clo...

Page 38: ...replaced Install new Teflon bushing and transducer Connect transducer wires to microprocessor and reinstall wire channel cover Replacing Electronic Control Prior to replacing electronic control gathe...

Page 39: ...THE GROOVE POSITION AND HOLD FLAT SEALING FACE AGAINST O RING 2 BACK OFF NUT BACK OFF LOCKNUT TO ITS UPPERMOST POSITION 3 THREAD INTO PORT THREAD FITTING INTO THE PORT UNTIL THE BACKUP WASHER CONTACT...

Page 40: ...owering the compressed air discharge temperature to seal the rotor clearances Fluid Specifications We recommend that all Quincy rotary screw compressors be filled with one of the following synthetic f...

Page 41: ...e design life of the compressor or cause problems with filtration or carryover Consult the Quincy Service Department before changing brands of fluid Fluid Level Fluid level is monitored by a sightglas...

Page 42: ...tment check for the following which can affect the long life of QuinSyn 1 High operating temperatures 2 Contaminants a Other fluids b Strong Oxidizers such as acids sulfur chlorine burnt fuel i e exha...

Page 43: ...tory upon completion of the fluid analysis Although QuinSyn fluids are rated by hours of life expectancy under normal operating conditions it is recommended that fluid samples be taken every 500 to 20...

Page 44: ...to drain water from the reservoir Disposal QuinSyn PG is considered nonhazardous waste Disposal of this fluid should be done in accordance with Local State and Federal regulations Separation of this f...

Page 45: ...6 Typical Properties of QuinSyn XP ISO 68 Viscosity 100 F ASTM D445 60 0 cSt Viscosity 210 F ASTM D445 9 8 cSt Viscosity Index ASTM D2270 131 Specific Gravity 60 60 0 95 Flash Point ASTM D92 570 F Fir...

Page 46: ...l stability Excellent oxidative stability Better gas fluid separation Typical Properties of QuinSyn Plus ISO 46 Viscosity 100 F ASTM D445 46 0 cSt Viscosity 210 F ASTM D445 7 5 cSt Viscosity Index AST...

Page 47: ...mpressors as a factory fill option Extended warranties are not available with the use of QuinSyn IV QuinSyn QuinSyn is a Polyalphaolefin PAO type synthetic fluid Effective November 1 2000 QuinSyn Comp...

Page 48: ...th mineral oils and QuinSyn synthetic fluids and is highly recommended for use as a flushing fluid when converting to QuinSyn PG from QuinSyn or QuinSyn IV Applications Cleaning fluid for removal of v...

Page 49: ...ng the following procedure Drain thoroughly as in A and fill with QuinSyn Flush Run the machine for 300 hours and take a fluid sample Send fluid sample to Quincy Compressor Fluid Analysis to determine...

Page 50: ...ple and send to Quincy Compressor Fluid Analysis to determine if further flushing is needed Continue operating compressor until the results of fluid analysis are known Drain or continue to run compres...

Page 51: ...eral oils or PAO fluids flush the compressor with QuinSyn Flush following the procedures outlined on page 45 Converting to QuinSyn Plus Normal Machines A Any QuinSyn fluid except QuinSyn PG No flush r...

Page 52: ...s must be placed on draining after each step Contaminants left in the compressor after flushing have a direct effect on the fluid s life Once the oxidized material varnish is dissolved in the QuinSyn...

Page 53: ...ottle 3 Close valve After collecting sample from either of the above methods 1 Fill out information label completely Be certain to provide all information as to possible hazards related to a given sam...

Page 54: ...s n Sample Values below are in parts per million ppm Date Silver Alum Chrom Copp Iron Nickel Lead Tin Titan Vanad Bari Calc Mag Mol Sod Phos Sili Zinc Fluid Hours Ag Al Cr Cu Fe Ni Pb Sn Ti V Ba Ca Mg...

Page 55: ...MODEL NUMBER The model number of the Quincy compressor that the fluid sample was taken from i HOURS ON FLUID These are the actual hours that the QuinSyn fluid has been in the unit since the last flui...

Page 56: ...ion QuinSyn PG 0 40 50 100 QuinSyn XP 0 40 50 100 QuinSyn Plus 0 5 20 20 Phosphorus PPM Plasma Emission QuinSyn PG 0 5 20 20 QuinSynXP 50 5 20 0 QuinSyn Plus 0 5 20 20 Zinc PPM Plasma Emission All 0 1...

Page 57: ...20 20 Phosphorus PPM Plasma Emission All 0 5 20 20 Zinc PPM Plasma Emission All 0 100 200 200 WEAR METALS Silver PPM Plasma Emission All 0 5 10 10 Aluminum PPM Plasma Emission All 0 5 10 10 Chromium...

Page 58: ...CORRECT THE SITUATION IN ACCORDANCE WITH THE INSTRUCTION IN THE HIGH DISCHARGE AIR TEMPERATURE SECTION OF THIS TROUBLESHOOTING GUIDE RESTART THE COMPRESSOR CORRECT THE CAUSE OF THE OVERLOADED CONDITI...

Page 59: ...DISCHARGE AIR TEMPERATURE SECTION OF THIS TROUBLESHOOTING GUIDE RESTART THE COMPRESSOR CORRECT THE CAUSE OF THE MOTOR OVERLOADED CONDITION RESET THE OVERLOAD RELAY AND PRESS THE RESET BUTTON CHECK POW...

Page 60: ...SURE GAUGE CLEAN AIR FILTER ELEMENT OR REPLACE WITH NEW ELEMENT CHECK SERVICE LINES FOR LEAKS WITH SOAP SUDS REPAIR AS NECESSARY CHECK FOR BUILD UP OR GUMMING OF SHAFT CHECK FLUID FILTER FOR PLUGGING...

Page 61: ...OES NOT EXCEED MAXIMUM OPERATING PRESSURE CORRECT IN ACCORDANCE WITH INSTRUCTION ON INLET VALVE NOT OPENING OR CLOSING IN RELATION TO AIR DEMAND SECTION OF THIS TROUBLESHOOTING GUIDE CHECK CONTROL SOL...

Page 62: ...ND DISCHARGE AIR TEMPERATURE DO NOT MIX DIFFERENT GRADES OR TYPES OF FLUID DO NOT MIX FLUIDS FROM DIFFERENT MANUFACTURERS FOLLOW FLUID SPECIFICATIONS AS DESCRIBED IN COMPRESSOR FLUIDS SECTION OF THIS...

Page 63: ...ING THE RESERVOIR USE FLUID LEVEL GAUGE AS A GUIDE CLEAN SCAVENGER LINE ORIFICE AND TUBE CORRECT IN ACCORDANCE WITH THE INSTRUCTIONS IN HIGH DISCHARGE AIR TEMPERATURE SECTION OF THIS TROUBLESHOOTING G...

Page 64: ...VALVE ASSEMBLY FAULTY SOLENOID VALVE FAULTY SHUTTLE VALVE LOOSE WIRING CONNECTIONS AT SOLENOID VALVE PRESSURE SWITCH BROKEN SPRING IN AIR INLET VALVE CHECK FOR LEAKS AND CORRECT REPLACE SEAL ASSEMBLY...

Page 65: ...PILOT VALVE Compressor Will Not Time out Or Shut Down When Unloaded Auto Dual Only FAULTY TIMER LEAKS IN CONTROL LINES LEAKS IN SERVICE LINES FAULTY AIR PRESSURE SWITCH FAULTY AIR PRESSURE SENSORS ADJ...

Page 66: ...REPLACE AS REQUIRED CHECK OTHER COMPRESSORS ON SAME SYSTEM REPLACE COOLER ADJUST DIFFERENTIAL PRESSURE REGULATOR TO OBTAIN DESIRED MODULATION RANGE READJUST AIR PRESSURE SWITCH SO THAT THE COMPRESSOR...

Page 67: ...Belt Stretches Beyond Available Take up MISALIGNMENT DEBRIS IN SHEAVES BROKEN TENSILE MEMBER OR CORD DAMAGE MISMATCHED BELTS PROVIDE ADEQUATE GUARDS OR DRIVE PROTECTION FOLLOW CORRECT INSTALLATION PRO...

Page 68: ...BRATION INCORRECT BELTS SHEAVE OUT OF ROUND LOOSE DRIVE COMPONENTS RETENSION BELTS CLEAN BELTS AND SHEAVES CHECK AUTOMATIC TENSIONING DEVICE INSTALL NEW MATCHED BELT SET DO NOT MIX OLD AND NEW BELTS R...

Page 69: ...NGES IMPROVE VENTILATION TO DRIVE DO NOT USE BELT DRESSING ELIMINATE SOURCE OF CONTAMINATION Severe or Abnormal Belt Wear WEAR ON TOP OF BELT RUBBING AGAINST GUARD WEAR ON TOP CORNERS OF BELT INCORREC...

Page 70: ...ID RESERVOIR SERVICE AIR FILTER AS NEEDED DAILY OR WEEKLY IF EXTREMELY DIRTY CONDITIONS EXIST CLEAN AFTERCOOLER AND FLUID COOLER FINS AIR COOLED ONLY WIPE ENTIRE UNIT DOWN TO MAINTAIN APPEARANCE TAKE...

Page 71: ...Quincy Compressor QSB T 67 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 72: ...Appendix A Dimensional Drawings 68 Quincy Compressor QSB T QSB 15 50 HP air cooled...

Page 73: ...Appendix A Dimensional Drawings Quincy Compressor QSB T 69 QSB 15 50 HP water cooled...

Page 74: ...Appendix A Dimensional Drawings 70 Quincy Compressor QSB T QST 15 50 HP air cooled 120 gallon tank...

Page 75: ...Appendix A Dimensional Drawings Quincy Compressor QSB T 71 QST 15 50 HP water cooled 120 gallon tank...

Page 76: ...Appendix A Dimensional Drawings 72 Quincy Compressor QSB T QST 15 50 HP air cooled 200 gallon tank...

Page 77: ...Appendix A Dimensional Drawings Quincy Compressor QSB T 73 QST 15 50 HP water cooled 200 gallon tank...

Page 78: ...Heat Rejection Fluid Cooler BTU min 577 563 Aftercooler BTU min 109 91 Aftercooler Approach standard conditions F 8 Maximum Allowable Static Backpressure in H2 O 0 125 Fan Flow cfm 2126 Water cooled C...

Page 79: ...tercooling Heat Rejection Fluid Cooler BTU min 750 747 725 Aftercooler BTU min 150 129 107 Aftercooler Approach standard conditions F 9 Maximum Allowable Static Backpressure in H2 O 0 125 Fan Flow cfm...

Page 80: ...Aftercooling Heat Rejection Fluid Cooler BTU min 938 992 974 Aftercooler BTU min 197 181 148 Aftercooler Approach standard conditions F 10 Maximum Allowable Static Backpressure in H2 O 0 125 Fan Flow...

Page 81: ...ftercooling Heat Rejection Fluid Cooler BTU min 1154 Aftercooler BTU min 210 Aftercooler Approach standard conditions F 18 Maximum Allowable Static Backpressure in H2 O 0 125 Fan Flow cfm 3525 Water c...

Page 82: ...Aftercooling Heat Rejection Fluid Cooler BTU min 1551 Aftercooler BTU min 281 Aftercooler Approach standard conditions F 18 Maximum Allowable Static Backpressure in H2 O 0 125 Fan Flow cfm 3525 Water...

Page 83: ...ftercooling Heat Rejection Fluid Cooler BTU min 1983 1987 2001 Aftercooler BTU min 350 Aftercooler Approach standard conditions F 15 Maximum Allowable Static Backpressure in H2 O 0 125 Fan Flow cfm 62...

Page 84: ..._____________________ ___________________________________________________________________ ___________________________________________________________________ __________________________________________...

Page 85: ...nt according to percentage of completion Equipment held for Buyer shall be at Buyer s risk and storage charges may be applied at the discretion of Seller Accounts past due shall bare interest at the h...

Page 86: ...roduct or part thereof must be promptly returned to seller freight prepaid for inspection Seller warrants repaired or replaced parts of its own manufacture against defects in materials and workmanship...

Page 87: ...o Industries company All Rights Reserved Litho in U S A Quincy Compressor Products 217 222 7700 E mail info quincycompressor com Website www quincycompressor com 314 42nd Street West Williston ND 5880...

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