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Q R N G SeriesModel QRNG 340Parts ManualRecord of Change 105This manual contains important safety information and must be madeavailable to all personnel who operate and/or maintain this product.Carefully read this manual before attempting to operate or performmaintenance on this compressor.Fill Out & Return Warranty Registration Card Located InsideManual No. 50162-105February 2008 Edition

INTRODUCTIONMODEL &SERIAL NUMBERIDENTIFICATIONThis manual provides information for the QRNGSeries, Model QRNG 340 natural gas compressor perRecord of Change 105.The Model QRNG 340 natural gas compressor isan aircooled, two stage, two cylinder, pressure lubricated compressor, capable of handling inlet pressures of -7.5 PSI (15 in. mercury) up to 30 PSI. Amaximum of 500 PSI discharge pressure can beproduced (with proper controls and modifications).It has a 5.25" low pressure bore and a 3.00" highpressure bore, with a 3.50" stroke. The Model QRNG340 can be run at 400-900 RPMRecordofChange No.Model & Serial NumberIdentification TagHead unloader piping was modified.The 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.TABLE OF CONTENTSAll replacement parts are to be ordered throughan authorized Quincy distributor. Insist on genuineQuincy parts only! Failure to do so may void warranty.CHANGESsince previous printing (dated December 2007):Serial Number Identification . 1ORDERINGREPLACEMENT PARTSOrdering Replacement Parts . 1Crankcase Group . 2Prompt service can be rendered on repair partsorders if the following information is given:Crankshaft Group . 3Bearing Carrier Group . 4-5Item 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 transportationConnecting Rod & Piston Groups . 6-9Cylinder & Head Groups . 10-11Head Assemblies . 12-13Suction Valve Assembly . 14Discharge Valve Assembly . 15Pneumatic Unloader Assembly . 16Control Group . 17CAUTION !Recommended Spare Parts . 18Follow all safety precautions outlined in the QRNG Seriesinstruction manual.Gasket Set . 18"O"ring Kit . 18WARNING !Decals . 18Do not operate this compressor without a totally enclosedbelt guard or any other required safety equipment.Quin-Cip Lubricant . 18Crankcase Lubricant Capacity . 18DANGER !Air used for breathing or food processing must meetOSHA 1910.134 or FDA 21 CFR 178.3570 regulations.Failure to do so may cause severe injury or death.QRNG 34050162-105, February 2008Quincy Compressor13501 Wismann Lane, Quincy Ill. - 62305-3116

CRANKCASE GROUP rankcase assemblycrankcasebearing cuppipe plug, 1/2 nptbearing adjustment shim, .005 steelbearing adjustment shim, .007 steelbearing adjustment shim, .020 steelbearing adjustment shim, .002 steelbearing adjustment plate assemblyadjustment plateoil sealhex. screw, 3/8-16 unc x 1.25, grade 5 (@ 30ft.-lbs.)inspection plate gasketinspection plateinspection platehex. screw, 5/16-18 unc x 1.00, grade 5 (@ 12ft.-lbs.)oil gaugebreather balldrive pinflatwasher, 5/16"o"ring, 1/16 wide x 3.38 o.d."o"ring, 3/32 wide x .83 o.d.* Quantity as required@ Indicates torque value (dry threads)128Install seal as shown if positive crankcase pressure exists.Reverse the seal if negative crankcase pressure exists.1.17.116109147.217654133181.2Apply pipe sealantto this pin15during installation.91612211QRNG 34050162-105, February 2008Quincy Compressor23501 Wismann Lane, Quincy Ill. - 62305-3116

CRANKSHAFT GROUP 2110428N0501466Descriptioncrankshaft assemblycrankshaft (N.S.S.; order 110519)bearing conebearing coneorifice, 1/8 nptpipe plug, 1/8 nptroll pin, 3/16 x 1.38sheave assemblysheave, 191/2", 4 groove, B sect., CCW (N.S.S.; order 110523X)hex. screw, 1/2-13 unc x 3.50, grade 8 (@ 90 ft.-lbs.)square nut, 1/2-13 uncflatwasher, 1/2taper keyN.S.S. Not Sold Separate@ Indicates torque value (dry threads)For reversal of compressor rotation refer to QRNG instruction manual.QRNG 34050162-105, February 2008Quincy Compressor33501 Wismann Lane, Quincy Ill. - 62305-3116

BEARING CARRIER GROUP 81.1051.7461.8931.10101.9QRNG 34050162-105, February 2008Quincy Compressor43501 Wismann Lane, Quincy Ill. - 62305-3116

BEARING CARRIER GROUP 112042-001ItemNumberQty.11112043-00223§ 575502-1123478-L12* 1108226679-1110659123115-06C123478-L11110825† ring carrier assembly (N.S.S.; order 112043G002)includes:bearing carrier (N.S.S.; order 112043G002)bearing cupbushing"o"ring, 3/32 wide x 3.44 o.d."o"ring, 3/32 wide x .69 o.d.bearing carrier driveshaftdriveshaft keypump gerotorretaining ringoil pump housinghex. screw, 1/4-20 unc x 1.00, grade 5 (@ 6 ft.-lbs.)pipe plug, 1/4 npt, hex socketadjustment screw"o"ring, 1/16 wide x .44 o.d.jamnut, 9/16-18 unfspringneedle valvebearing carrier gaskethex. screw, 3/8-16 unc x 1.00, grade 5 (@ 30 ft.-lbs.)oil pressure gaugegasket, oil inlet bracketoil pickup tubelockwasher, 3/8hex. screw, 3/8-16 unc x .88, grade 5 (@ 25 ft.-lbs.)oil filter studMaintenance Parts112043G0026 pack of oil filtersOil Pump Repair Kitincludes items 1.2, 1.3, 1.4, 1.5, 1.6, 1.7 & 1.12Replacement Bearing Carrier Assemblyincludes items 1 & 2N.S.S. Not Sold Separate@ Indicates torque value (dry threads)* Should indicate approximately 25 PSIG at operating temperature.Note: Tighten all bolts & capscrews in any bolt pattern evenly bringing each bolt to torque in even increments while moving aboutthe bolt pattern.§ Install with Teflon tape.† Can not be used with diester or phosphate ester based synthetic lubricants.QRNG 34050162-105, February 2008Quincy Compressor53501 Wismann Lane, Quincy Ill. - 62305-3116

CONNECTING ROD & PISTON GROUP 112235-002(low pressure side)RING GAPS TO BE STAGGEREDWHEN ASSEMBLED.PIP MARKS INDICATETOP SURFACE OF RING.QRNG 34050162-105, February 2008Quincy Compressor63501 Wismann Lane, Quincy Ill. - 62305-3116

CONNECTING ROD & PISTON GROUP 112235-002(low pressure 6124471-M08connecting rod assembly (N.S.S.; see maintenance parts)connecting rod (N.S.S.; see maintenance parts)connecting rod (N.S.S.; see maintenance parts)connecting rod (N.S.S.; see maintenance parts)boltwasherneedle bearingorificeretaining ringpiston pincompressor pistonoil ringpiston ringconnecting rod insert (sold in pairs only; see maintenance parts)locknut, 7/16-20 unf (@ 40 04450-0206656PR6656-010PR112231G001replacement piston (.010 oversize)replacement piston (.020 oversize)ring set (standard; no color code)ring set (.010 oversize; light blue)ring set (.020 oversize; yellow)connecting rod bearing inserts (1 pair; standard size)connecting rod inserts (1 pair; .010 undersize)Replacement Piston Assembly (standard)includes items 1.2, 1.3, 1.4 & a standard ring setReplacement Piston Assembly (.010 oversize)includes items 1.2, 1.3, an oversized piston & an oversized ring setReplacement Piston Assembly (.020 oversize)includes items 1.2, 1.3, an oversized piston & an oversized ring setReplacement Connecting Rod Assembly (standard size)includes items 1, 3 & standard connecting rod insertsReplacement Connecting Rod Assembly (.010 undersize)includes items 1, 3 & undersized connecting rod .31.41.51.6Maintenance Parts112231G010112231G020112233G112233G010N.S.S. Not Sold Separate@ Indicates torque value (dry threads)* 1 pair required for each connecting rod assembly.Note: Tighten all bolts & capscrews in any bolt pattern evenly bringing each bolt to torque in even increments while moving aboutthe bolt pattern.QRNG 34050162-105, February 2008Quincy Compressor73501 Wismann Lane, Quincy Ill. - 62305-3116

CONNECTING ROD & PISTON GROUP 112239-001(high pressure side)RING GAPS TO BE STAGGEREDWHEN ASSEMBLED.PIP MARKS INDICATETOP SURFACE OF TTOMGROOVE1.55281.14321.49QRNG 34050162-105, February 2008Quincy Compressor83501 Wismann Lane, Quincy Ill. - 62305-3116

CONNECTING ROD & PISTON GROUP 112239-001(high pressure G0011.11.21.31.41.5PartNumberDescriptionconnecting rod assembly (N.S.S.; see maintenance parts)inlcudes:connecting rod (N.S.S.; see maintenance parts)needle bearingconnecting rod bolt, 7/16-20 unc x 3.25connecting rod bolt washerpipe plug orificeretaining ringpiston pinpistonoil ring railoil ring expanderpiston ringconnecting rod insert (sold in pairs only; see maintenance parts)locknut, 7/16-20 unf (@ 40 ft.-lbs.)Maintenance ent piston (.010 oversize)replacement piston (.020 oversize)ring set (standard; no color code)ring set (.010 oversize; light blue)ring set (.020 oversize; yellow)connecting rod inserts (standard)connecting rod inserts (1 pair; .010 undersize)PISTON ASSEMBLY (STANDARD)includes items 2, 3, 4 & a standard ring setReplacement Piston Assembly (.010 oversize)includes items 2, 3, an oversized piston & oversized ring setReplacement Piston Assembly (.020 oversize)includes items 2, 3, an oversized piston & an oversized ring setReplacement Connecting Rod Assembly (standard)includes items 1, 9 & standard connecting rod insertsReplacement Connecting Rod Assembly (.010 undersize)includes items 1, 9 & undersize connecting rod insertsN.S.S. Not Sold Separate@ Indicates torque value (dry threads)* 1 pair required for each connecting rod assembly.Note: Tighten all bolts & capscrews in any bolt pattern evenly bringing each bolt to torque in even increments while moving aboutthe bolt pattern.QRNG 34050162-105, February 2008Quincy Compressor93501 Wismann Lane, Quincy Ill. - 62305-3116

CYLINDER & HEAD GROUP 115047-003(plain head)QRNG 34050162-105, February 2008Quincy Compressor103501 Wismann Lane, Quincy Ill. - 62305-3116

CYLINDER & HEAD GROUP 115047-005(head with unloaders)QRNG 34050162-105, February 2008Quincy Compressor113501 Wismann Lane, Quincy Ill. - 62305-3116

HEAD ASSEMBLY 114984-001ASSEMBLY(plain head)QRNG 34050162-105, February 2008Quincy Compressor123501 Wismann Lane, Quincy Ill. - 62305-3116

HEAD ASSEMBLY 114984-002ASSEMBLY(head with unloaders)QRNG 34050162-105, February 2008Quincy Compressor133501 Wismann Lane, Quincy Ill. - 62305-3116

SUCTION VALVE ASSEMBLY 7277X1VALALVEASSEMBLYQRNG 34050162-105, February 2008Quincy Compressor143501 Wismann Lane, Quincy Ill. - 62305-3116

DISCHARGE VALVE ASSEMBLY 7271X004VALALVEASSEMBLYQRNG 34050162-105, February 2008Quincy Compressor153501 Wismann Lane, Quincy Ill. - 62305-3116

PNEUMATIC UNLOADER ASSEMBLY 40055PNEUMATICASSEMBLYQRNG 34050162-105, February 2008Quincy Compressor163501 Wismann Lane, Quincy Ill. - 62305-3116

CONTROL GROUP 116269-001QRNG 34050162-105, February 2008Quincy Compressor173501 Wismann Lane, Quincy Ill. - 62305-3116

Recommended Spare 9-0017088G"O"Ring Kit 110291GItem#Qty.Descriptionreplacement suction valve assy.replacement discharge valve assy.oil pressure gaugeoil pump repair kitgasket 9-01122749-11222749-04222749-152"o"ring,oil seal"o"ring,"o"ring,"o"ring,"o"ring,3-1/2 wide x .82 o.d.1/163/321/163/32widewidewidewidexxxx.44 o.d.69 o.d.3.38 o.d.3.44 o.d.Gasket Set scriptionQUIN-CIP LUBRICANTgasket, cylinder to crankcaseinspection plate gasketgasket, valve covergasket, valve coverbearing adj. shim, .005 steelbearing adj. shim, .007 steelbearing adj. shim, .020 steelbearing adj. shim, .002 steelbearing carrier gasketgasket, cylinder to headvalve gasketRefer to the chart below to order QUIN-CIP compressor lubricant from your local authorized Quincy distributor.DECALS42PackagePart No.DescriptionBarrelPailGallonGallon CaseQuartQuart Q032112541C03255 gal., SAE 10W5 gal., SAE 10W1 gal., SAE 10W(4)-1 gal., SAE 10W1 qt., SAE 10W(12)-1 qt., SAE 10WBarrelPailGallonGallon CaseQuartQuart Q068112542C06855 gal., SAE 20

Parts Manual Record of Change 105 QRNG Series Model QRNG 340. QRNG 340 Quincy Compressor 50162-105, February 2008 1 3501 Wismann Lane, Quincy Ill. - 62305-3116 MODEL & SERIAL NUMBER IDENTIFICATION INTRODUCTION This manual provides information for the QRNG Series, Model QRNG 340 natural gas compressor per Record of Change 105. The Model QRNG 340