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QR-25 SeriesModel 5120Parts ManualRecord of Change 107This manual contains important safety information and must becarefully read in its entirety and understood prior to installationby all personnel who install, operate and/or maintain this product.On-line product registration, parts ordering and warranty information is available at www.quincycompressor.comManual No. 2022206200July 2014 Edition
INTRODUCTIONTABLE OF CONTENTSThis manual provides information for the followingQR-25 Series, Model 5120 (Record of Change 107)compressor versions:LLSLVDSerial Number Identification.2Ordering Replacement Parts.2Quin-Cip Lubrication.2Control Version Lhead assembly with 4 unloader towers& a hydraulic unloaderCrankcase Lubricant Capacity.2Crankcase Group.3Crankshaft Group.4Control Version LShead assembly with 4 unloader towers, ahydraulic unloader, & a pilot valve witha check valve assemblyBearing Carrier Group.5Connecting Rod & Piston GroupsLow Pressure.6-7High Pressure.8-9Control Version LVDhead assembly with 4 unloader towers, ahydraulic unloader, & a pilot valve witha lockout & check valveCylinder & Head GroupsControl Versions L, LS, LVD.10-11Head AssembliesControl Versions L, LS, LVD.12-19These compressors are aircooled, two stage, fourcylinder, pressure lubricated compressors, with upto 200 PSI continuous pressure capability (201 to250 PSI intermittent pressure capability with properconfiguration; consult factory). The Model 5120 hasa 6" low pressure piston bore and a 3.25" high pressure piston bore and a 325" high pressure bore x 4"stroke and can be run at 400-1040 RPM.Shroud Group.20Control GroupsVersion L.21Version LS.22Version LVD.23Pilot Valves.24Differential Setting Chart.24Available options included in this manual:-hooded air filter-hooded air filter / silencerSuction Valve Unloader Assemblies.25CHANGESKits.26Decals.25Gasket Set.26since previous printing dated January 2014:Recommended Spare Parts.26The bearing carrier was redesigned with a newoil pump including an oil filter.Oil Pump Repair Kit.26Basic Compressor Repair Kit.26Typical Unit Repair Parts List.27QR 51202022206200, July 2014Quincy Compressor13501 Wismann Lane, Quincy IL - 62305-3116
MODEL &SERIAL NUMBERIDENTIFICATIONQUIN-CIP LUBRICANTRefer to the chart below to order Quin-Cip-D or QuinCip compressor lubricant from your local authorizedQuincy distributor.RecordofChange No.Quin-Cip-D Lubricant(synthetic)SAE 30 (ISO 100)Quart115468QCase (12 Qts.)115438CQuin-Cip LubricantModel & Serial NumberIdentification TagSAE 10W (ISO 32)Quart112541Q032Case (12 Qts.)112541C032SAE 20 (ISO 68)Quart112542Q068Case (12 Qts.)112542C068SAE 30 (ISO 100)Quart112543Q100Case (12 Qts.)112543C100SAE 40 (ISO 150)Quart2024601401Case (12 Qts.)2024601405The model & serial number tag is located on thehandhole plate side of the crankcase. Fill in thenumbers from your compressor's tag in the corresponding spaces provided here and reference thispage when ordering replacement parts.All replacement parts are to be ordered throughan authorized Quincy distributor. Insist on genuineQuincy parts only! Failure to do so may void warranty.ORDERINGREPLACEMENT PARTSCRANKCASE LUBRICANTCAPACITYPrompt service can be rendered on repair parts ordersif the following information is given:Item 1) the model number, record of changenumber, & serial number.Item 2) the exact part number needed. (Do notorder by item numbers.)Item 3) the exact quantity needed.Item 4) the preferred type of transportationModel51209 qts. & 30 oz.(9.41 lit.)CAUTION !WARNING !Refer to the QR-25 Series Instruction Manual for vital lubrication information.Do not operate this compressor without a totally enclosedbelt guard or any other required safety equipment.CAUTION !DANGER !Follow all safety precautions outlined in the QR-25 Seriesinstruction manual.Air used for breathing or food processing must meet OSHA1910.134 or FDA 21 CFR 178.3570 regulations. Failure todo so may cause severe injury or death.QR 51202022206200, July 2014CapacityQuincy Compressor23501 Wismann Lane, Quincy IL - 62305-3116
CRANKCASE GROUP 110460-002ItemNumber ng cupgasket, inspection plateinspection plateinspection plateoil gauge assemblypipe plug, 1/2 nptbearing adjustment shim, .005 steelbearing adjustment shim, .007 plasticbearing adjustment shim, .020 steelbearing adjustment shim, .002 steeladjustment platehex. screw, 1/2-13 unc x 1.25, grade 5 ( @ 75 ft.-lbs.)breather assemblybreather tubebreather filterbreather ball seatbreather ballroll pin, 1/8 x 1.12breather capflatwasher, 3/8hex. screw, 3/8-16 unc x 1.00, grade 5 (@ 12 ft.-lbs.)"o"ring, 3/32 wide x .82 o.d.Parts for use with diester or phosphate ester synthetic based lubricants181112033-908"o"ring, 3/32 wide x .82 o.d.QR 51202022206200, July 2014Quincy Compressor33501 Wismann Lane, Quincy IL - 62305-3116
CRANKSHAFT GROUP 110461ItemNumber 23115-10C1883-001Descriptioncrankshaft assemblycrankshaft (N.S.S.; order 110227-001)bearing conebearing conepipe plug, 1/4 nptorifice, 1/8 nptroll pin, 3/16 x 1.88keysheave assemblysheave, 23-1/2", 4G, B section, CCW (N.S.S.; order 110558X)hex. screw, 5/8-11 unc x 3.00, grade 5 ( @ 150 ft.-lbs.)flatwasher-5/8lockwasher, 5/8square nut, 5/8-11 unc@ Indicates torque value (dry threads). Tighten multiple bolts, capscrews & hex nuts in a criss-cross or alternating pattern. Bringeach fastener to the recommended torque specification in even increments.N.S.S. Not Sold SeparateNote: For reversal of compressor rotation refer to QR-25 instruction manual.1.61.31.41.13.223.31.21.41.53.13.43.5QR 51202022206200, July 2014Quincy Compressor43501 Wismann Lane, Quincy IL - 62305-3116
BEARING CARRIER GROUP 2024400261QR 51202022206200, July 2014Quincy Compressor53501 Wismann Lane, Quincy IL - 62305-3116
1.11.272022206200, July 2014QR 51206892453BOTTOMGROOVETHIRDGROOVE101111102Be sure to stagger ring gaps !Dished SideSECONDGROOVETOPGROOVE(low pressure)1.41.36To find the dished side of springs,place spring on flat surface and presswith finger (see below)Pip markor "T"on top of ringCONNECTING ROD & PISTON GROUP 110462Quincy Compressor3501 Wismann Lane, Quincy IL - 62305-3116
CONNECTING ROD & PISTON GROUP 110462(low pressure)ItemNumber Qty.12345678910111.11.21.31.41112221111222227* 7* cting rod assembly (N.S.S.; order 6655X)connecting rod (N.S.S.; order 6655X)bushing, connecting rod (N.S.S.; order 6443SR)connecting rod bolt, 7/16-20 unc x 3.25connecting rod bolt washerretaining ringpiston pinpiston, LPring spacerpiston ringconnecting rod insert (sold in pairs only; see maintenance parts)locknut, 7/16-20 unf (@ 40 ft.-lbs.)oil ring railspringpiston ringMaintenance Parts16656PRconnecting rod inserts (1 pair, standard size)16656-010PRconnecting rod inserts (1 pair, .010 undersize)18640-010piston, LP (.010 oversize)17527Piston Ring Set, LPincludes piston rings, piston rails, piston spring, & spacer15787-010Piston Ring Set, LPincludes all rings necessary for installing .010 oversize piston8640XPiston Assembly, LP (Standard)includes ring set, piston, piston pin, & retaining ring8640X010Piston Assembly, LP (.010 Oversize)includes ring set, piston, piston pin, & retaining rings6655XReplacement Connecting Rod Assembly (Standard)includes connecting rod assembly, connecting rod inserts, & locknuts6655XUSReplacement Connecting Rod Assembly (.010 Undersize)includes connecting rod assembly, connecting rod inserts, & locknuts@ Indicates torque value (dry threads). Tighten multiple bolts, capscrews & hex nuts in a criss-cross or alternating pattern. Bringeach fastener to the recommended torque specification in even increments.* One pair required for each connecting rod assembly.N.S.S. Not Sold SeparateQR 51202022206200, July 2014Quincy Compressor73501 Wismann Lane, Quincy IL - 62305-3116
CONNECTING ROD & PISTON GROUP 115811(high pressure)QR 51202022206200, July 2014Quincy Compressor83501 Wismann Lane, Quincy IL - 62305-3116
CONNECTING ROD & PISTON GROUP 115811(high pressure)ItemNumber 79687963Descriptionconnecting rod assembly (N.S.S.; order 110804X)connecting rod (N.S.S.; order 110804X)needle bearingconnecting rod bolt, 7/16-20 unc x 3.25connecting rod bolt washerpipe plug orificeretaining ringpiston pinpiston, HPoil ring railring spacerpiston ringlocknut, 7/16-20 unf (@ 40 ft.-lbs.)connecting rod insert (sold in pairs only; see maintenance parts)piston springpiston ringMaintenance Parts16656PRconnecting rod inserts (1 pair, standard size)* 916656-010PRconnecting rod inserts (1 pair, .010 undersize)* 9415846-011piston, hp (.010 oversize)8168Piston Ring Set, HP (Standard) No Color Codeincludes piston rings, piston rails, piston spring, & spacer5788-010Piston Ring Set, HP (.010 Oversize) (L. Blue)includes all rings necessary for installing .010 oversize piston5846X001Piston Assembly, HP (Standard w/ side sealer)includes ring set, piston, piston pin, & retaining ring5846X011Piston Assembly, HP (.010 Oversize)includes ring set, piston, piston pin, & retaining ring110804XReplacement Connecting Rod Assembly (Standard)includes connecting rod assembly, connecting rod inserts, & locknuts110804X010Replacement Connecting Rod Assembly (.010 Undersize)includes connecting rod assembly, connecting rod inserts, & locknuts@ Indicates torque value (dry threads). Tighten multiple bolts, capscrews & hex nuts in a criss-cross or alternating pattern. Bringeach fastener to the recommended torque specification in even increments.* One pair required for each connecting rod assembly.N.S.S. Not Sold SeparateQR 51202022206200, July 2014Quincy Compressor93501 Wismann Lane, Quincy IL - 62305-3116
CYLINDER & HEAD GROUP 110465-0012424(control versions L, LS, & LVD)QR 51202022206200, July 2014Quincy Compressor103501 Wismann Lane, Quincy IL - 62305-3116
CYLINDER & HEAD GROUP 110465-001(control versions L, LS, & LVD)ItemNumber 78-N16110377F200head assembly (see pages 13 & 15 for parts breakdown)head assembly (see pages 17 & 19 for parts breakdown)gasket, cylinder to headcylindergasket, cylinder to crankcasegasket, companion flangeintake flangehex. screw, 7/16-14 unc x 1.50, grade 5 (@ 50 ft.-lbs.)hex. screw, 1/2-13 unc x 1.75, grade 5 (@ 65 ft.-lbs.)air filter110377H200hooded air -N154729hooded air filter silencerhex. screw, 1/2-13 unc x 1.50, grade 5 (@ 75 ft.-lbs.)lockwasher, 1/2counterbore screw, 7/16-14 unc x 1.25, grade 8 (@ 50 ft.-lbs.)gasket, intercooler to headintercoolerhex. screw, 1/2-13 unc x 4.00, grade 5 (@ 75 ft.-lbs.)flatwasher-1/2intercooler sleevecounterbore screw, 1/2-13 unc x 4.25, grade 8 (@ 65 ft.-lbs.)flatwasherdischarge manifoldcounterbore screw, 1/2-13 unc x 1.50, grade 8 (@ 50 ft.-lbs.)pipe plug, 3/8 nptMaintenance Parts242110377E200air filter element17382X3LReplacement Head Assemblyincludes head assembly & gaskets17383X3LReplacement Head Assemblyincludes head assy., gasket, fittings, & copper tubes@ Indicates torque value (dry threads). Tighten multiple bolts, capscrews & hex nuts in a criss-cross or alternating pattern. Bringeach fastener to the recommended torque specification in even increments.QR 51202022206200, July 2014Quincy Compressor113501 Wismann Lane, Quincy IL - 62305-3116
2022206200, July 2014QR .12.42.311LEFT HEAD ASSEMBLY 7382UU(control versions L, LS, & LVD)Quincy Compressor3501 Wismann Lane, Quincy IL - 62305-3116
* LEFT HEAD ASSEMBLY 7382UU(control versions L, LS, & LVD)ItemNumber Qty.PartNumberDescription1217382head36671X1suction valve assembly2.116671valve bumper2.212015suction valve seat2.312036valve disc2.416909valve spring2.511849stud366910valve spring461857valve pin525729valve platform626912-001unloader pin726911valve retainer846668-1Rvalve retainer927398valve cover gasket1017385valve cover plate‡ † 114114545-R15bolt and jamnut assembly, 3/4-16 unf x 1.50, grade 5(bolt @ 60 ft.-lbs. - nut @ 50 ft.lbs.)122 ft.110515
This manual contains important safety information and must be carefully read in its entirety and understood prior to installation by all personnel who install, operate and/or maintain this product. On-line product registration, parts ordering and warranty information is available at www.quincycompressor.com Manual No. 2022206200 July 2014 Edition QR-25File Size: 1MBPage Count: 32
