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Q.Parts Manual forQT Series CompressorModel QT-I 5.1Record of Change 101.50250-101-November1996

INTRODUCTIONTABLE OF CONTENTSSerial Number IdentificationOrdering Replacement. 2Parts . 2Quin-Cip Oil . 2CrankcaseGroup . 3CrankshaftGroup . 4ConnectingRod & Piston Groups .5-8Cylinder & Head Groups .9-16Manifold Group . 17Control Piping SchematicsThe Model QT-15 is an aircooled, two stage, fourcylinder, V-type, splash lubricated compressor, withup to 175 p.s .i. continuous pressure capability. It hasa 4.5” low pressure bore and a 2.5” high pressure bore,with a 3.5” stroke. This compressor can be run at 4001150 r.p.m.Availableoptions include:. 18-hooded air filter/silencerPilot Valves . 19-head unloadersPilot Valve Repair Klt . 19DifferentialThis manual provides information for the Model QT15 reciprocating compressor, per Record of Change101.Setting Charts . 19Suction Valve Unloader Assemblies.20Decals . 20CHANGESsince previous printing dated October 1994:Gasket Set . 21RecommendedOverhaul-the low pressure valve plate was replaced with a machined valve plateSpare Parts . 21Kits . 21-pilot valve informationHead Kits . 21Typical Unit Repair Parts List . 22-23was updated-head kits and overhaul kits were added-the piston pins were changed and arenow secured with retaining rings-typical unit repair parts list was addedQUINCYCOMPREWRQT- 1550250-1011November1996

—MODEL &SERIAL NUMBERIDENTIFICATIONQUIN-CIP OILRecordRefer to the chart below to order Quin-Cip compressor oil from your local Authorized Quincy CompressorDistributor.ofChange No.PackagePart No.BarrelPailGallonGallon CaseQuartQuart Q032112541C03255 gal., SAE 10W5 gal., SAE 10W1 gal., SAE IOW(4)-1 gal,, SAE 10W1 qt., SAE low(12)-1 qt., SAE 10WBarrelPailGallonGallon CaseQuartQuart Q068112542C06855 gal., SAE 205 gal., SAE 201 gal., SAE 20(4)-1 gal., SAE 201 qt., SAE 20(12)-1 qt., SAE 20BarrelPailGallonGallon CaseQuartQuart Q1OO112543C1OO55 gal., SAE 305 gal., SAE 301 gal., SAE 30(4)-1 gal., SAE 301 qt., SAE 30(12)-1 qt., SAE 30Iv[IMODELSERIAL NO. .Coltec IndustriesQuincyCompressor Division@dModel & Serial NmnberIdenti13cation TagThe model & unit serial number identificationlocated on the air tank top plate.tag is*Serial—Description*NumberThe basic compressor serial number decal is locatedon the handhole plate (oil gauge side of the crankcase). Fill in the numbers from your compressor unitand basic compressor in the corresponding spacesprovided here, and reference this page when orderingreplacement parts.AN replacement parts are to be ordered through anauthorized Quincy Compressor Distributor, Insist ongenuine Quincy parts only! Failure to do so may voidwarranty.CAUTION1Followall safety precautionsSeries instruction manual.!outlined in the Quincy QR-25IIORDERINGREPLACEMENT PARTSIPrompt service can be rendered on repair parts ordersif the following information is given:Do not operate this compressor without a totally enclosedbelt guard or any other required safety equipment.DANGER !Air used for breathing or food processing must meet O. S.H.A.1910.134 or F.D.A. 21 C.F,R. 178.3570 regulations, Failure todo so may cause severe injury or death.Item 1) the model number, record of change number, & 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 transportation.—QT- 1550250-101QUINCYCOMPRESSOR2November1996

11193011177111178169365518X15518111304686457831107 scridioncrankcase assemblycrankcaseoil sealbreather capbreather assemblybreather tubebreather filterbreather ball seatbreather ballroll pin, l/8 x 1.12“o’’ring, 3/32 wide x 7.19 o.d.bearing carrier“o’’ring, 3132 wide x .69 o.d.oil level gauge“o’’ring, l/8 wide x 10.75 o.d,oil panpipe plug, 3/8 npthex. screw, 3/8-16 unc x .88, grade 5 (6225 ft.-lbs,)cylindergasket, cylinder to crankcasehex. screw, 3/8-16 unc x 1.25, grade 5 (@30 ft.-lbs.)@ Indicates torque value (dry threads).14G‘\LQT- 1550250-101QUINCYCOMPRESSOR3November1996

-. . . 0428W1OOGROUP 111933Descriptioncrankehafl assemblycrankshatl(N. S.S.; order 111934)ball bearingball bearingsheave, 19,50”, 2 groove, Bsect. CCVJhex, nut, 1-14 unf, L.H. thread (CP200 ft.-lbs. )washerN.S.S. Not Sold Separate@ Indicates torque value (dry threads)— Note : Apply Loctlte 242 to the outelde diameter of theseIteme when aeeembled with the crankcaeeaseembly.o3QT- 1550250-101QUINCYCOMPRESSOR4November1996

CONNECTING(lowpressure)ROD & PISTON GROUP 111925Be sure to stagger ring gaps.Pip marks indicate top surfacesof items 7 & 9 (rings),ii9’-@Jll II 6

CONNECTINGROD & PISTON GROUP 11 1925*(low connecting rod assemblyconnecting rod (NS.S., order 111927)taptite screw, 5/16-18 unc x 150 (@ 20-22 ft. -lbs.)flatwasher, 5/16piston, low pressurepiston pinretaining ringoil ring railoil ring expanderpiston ringoil dipper (install on lower rod cap bolt for proper lubrication)piston , low pressure (.010 oversize)piston, low pressure (.020 oversize)Piston Ring Setincludes all rings necessary for installing standard size ringsPiston Ring Set (.010 oversize)includes all rings necessary for installing .010 oversize ringsPiston Ring Set (.020 oversize)includes all rings necessary for installing ,020 oversize ringsPiston Assembly, LP (standard size)includes piston, ring set, piston pin & retaimng ringsPiston Assembly, LP (.010 oversize)includes piston, ring set, piston pin & retaining ringsPiston Assembly, LP (.020 oversize)includes piston, ring set, piston pin & retaining ringsReplacement piston Pin Assembly Assemblyincludes piston pin & retaining rings11Maintenance22—* 2 of 111925 ConnectingPartsRod & Piston Groups required per compressorN,S.S. Not Sold Separate@ Indicates torque value (dry 996

CONNECTINGROD & PISTON GROUP 111926(high pressure)Be sure to stagger ring gaps.Pip marks indicate top surfacesof items 7 & 8 (rings).AI .-,a--’, l TH,.ROOVE5BOTTOM GROOVE 6 u!/QT-1550250-101/QUINCYCOMPRESSOR7November1996

CONNECTINGROD & PISTON GROUP 11 1652112440-004112212connecting rod assemblyconnecting rod(N.S.S,; order 111928)taptite screw, 5/16 -18uncx1.50 (c?220-22 ft.-lbs.)flatwasher, 5/16needle bearingpiston, high pressurepiston pinretaining ringoil ring railoil ring expanderpiston ringpiston ringoil ton, high pressure (.010 oversize)piston, high pressure (.020 oversize)Piston Ring Set (standard) No Color Codeincludes all rings necessary for installing standard size ringsPiston Ring Set (.010 oversize)includes all rings necessary for installing .010 oversize ringsPiston Ring Set (.020 oversize)includes all rings necessary for installing .020 oversize ringsPiston Assembly, HP (standard size)includes piston, ring set, piston pin & retaining ringsPiston Assembly, HP (.010 oversize)includes piston, ring set, piston pin & retaining ringsPiston Assembly, HP (.020 oversize)includes piston, ring set, piston pin & retaining ringsReplacement Piston Aasembh,., HPincludes piston pin & piston pin plugsMaintenance22—* 2 of 111926 Connectingpressure)PartsRod & Piston Group required per compressorN.S,S. Not Sold Separate@ Indicatestorque value (dry threads)QT- 1550250-101QUINCYCOMFRESSOR8November1996

CYLINDER & HEAD GROUP 111935-1(*right bank / less head unloaders)7%/“,/’ 0436d 9November1996

CYLINDER& HEAD GROUP 111935-1(*right bank / less head 6112710-0041I1146F1OOcylinder head, high pressuregasket, head to valve platevalve plate assembly, high pressurevalve plate, (NS.S.; order ll1227X2)reed valve , (N. S. S.; order 111227X2)valve bumper (N.SS.; order 111227X2)valve bumper (N. S. S.; order 111227X2)flathead screw, l/4-20 uncxl.OO, grade8hex. nut, l/4-20 unc(@120in.-lbs.)tube clampgasket, cylinder to valve platetube fitting, 90 male elbow, 314 tube x 314 npthex. screw, 3/8-16 unc x 4.00, grade 5 (6230 ft.-lbs.)pipe bushing, 1 npt x 314 nptflatwasher, 318cylinder head, low pressuregasket, head to valve platevalve plate assembly, low pressurevalve plate (N. S. S.; order l12713M)reed valve (N. S. S.; order 112713M)reed valve (N. S. S.; order 112713M)vaIvebumper (N. S. S.; order 112713M)valve bumper (N. S. S.; order 112713M)flathead screw, l/4-20 uncxl.OO, grade8hex. nut, l/4-20 unc(@120in,-lbs,)hex. screw, 3/8-16 unc x .88, grade 5 K@30 ft.-lbs.)gasket, cylinder to valve platetube fitting, straight 3/4 tube x 3/4 nptsafety valvepipe elbow, 314 nptintercoolerpipe nipple, 3/4 npt x 1.88plug, 3/4-16 unf (“o’’ring included)adapter, 3/4-16 unfx l/4npt(’’0’’ringincluded)air filter111550s100air ��ring, siliconeair fdterelement,110377E1oO112713M15air fikerelement,(fits l11550S100 filter/silencer)Valve Assembly Replacement Kit, LPincludes valve plate assembly & gasketsValve Assembly Replacement Kit, HPincludes valve plate assembly&gasketshoodedMaintenance2324241112714*As viewed facing the compressorN,S,S. Not@ IndicatesParts(fita ll1146F100filter)from the sheave side.Sold Separatetorque value (dry threads)Note: Tighten all bolts & capscrews in any bolt pattern, evenly bringing each bolt to torque in equal increments,the bolt pattern. This is particularly true of connecting rod & head bolts.QT-1550250-101while moving aboutQUINCVCOMPREWR10November1996

CYLINDER& HEAD GROUP111936-1(*left bank / less head UINCYCOMIWESSORQT- 1550250101411November1996

CYLINDER & HEAD GROUP 111936-1(*left bank / less head r head, high pressuregasket, head to valve platevalve plate assembly, high pressurevalve plate, (NS.S.; order ll1227X2)reed valve, (N. S. S.; order 111227X2)valve bumper (N. S, S.; order 111227X2)valve bumper (N. S. S.; order 111227X2)flathead screw, l/4-20 uncxl.OO, grade8hex. nut, l/4-20 unc(@120in.-lbs.)tube clampgasket, cylinder to valve platetube fitting, 90 male elbow, 3/4 tube x 3/4 npthex. screw, 3/8-16 unc x 4.00, grade 5 (C230 ft.-lbs. )gasket, cylinder to valve plateflatwasher,3/8cylinder head, low pressuregasket, head to valve platevalve plate assembly, low pressurevalve plate (N. S. S.; order l12713M)reed valve (N. SS.; order 112713M)reed valve (N. S, S.; order 112713M)valve bumper (N. S. S.; order 112713M)valve bumper (N. S. S.; order 112713M)flathead screw, l/4-20 uncx 1.00, grade8hex. nut, l/4-20 unc(@120in.lbs.)hex, screw, 3/8-16 unc x .88, grade 5 @30 ft,-lbs, )safety valveintercoolerpipe bushing, 1 npt x 3/4 nptplug,3/4-16unf(“o’’ringincluded)adapter, 3/4-16 unfx l/4npt(’’0’’ringincluded)air filter111550s100air ring, siliconeair filter element, (fits lll146F100tlter)110377E1oO112713M15air tilter element, (fit.sll1550S100fWer/silencer)Valve Assembly Replacement Kit, LPincludes valve plate assembly& gasketsValve Assembly Replacement Kit, HPincludes valve plate assembly & gasketshoodedMaintenance2021211112714*As viewed facing the compressorN.S.S. Not@ IndicatesPartsfrom the sheave side.Sold Separatetorque value (dry threads)Note: Tighten all bolts & capscrews in any bolt pattern, evenly bringing each bolt to torque in equal increments,the bolt pattern. This is particularly true of connecting rod & head bolts.while moving about.QT-1550250-101QUINCYCOMPRESSOR12November1996

CYLINDER8( HEAD GROUP 112037-1(*right

genuine Quincy parts only! Failure to do so may void warranty. ORDERING REPLACEMENT PARTS Prompt service can be rendered on repair parts orders if the following information is given: Item 1) the model number, record of change num-ber, & serial number. Item 2) the exact part number needed, (Do not order by item numbers. ) Item 3) the exact quantity needed. Item 4) the preferred type of .