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It covers required model, serial number, and change record identification for ordering replacement parts through authorized Quincy distributors, emphasizing genuine parts to protect warranty. The manual describes applicable control versions (L, LS, LVD), key technical specifications, lubricant selection and crankcase capacity, warning and caution requirements, and a structured parts catalog with component group references.",{"@graph":69,"@context":121},[70,84,104],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/qr-25-series-model-370-parts-manual-record-of-change-107-safety-and-parts-ordering-guide/677036/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":98,"encodingFormat":97,"isAccessibleForFree":99,"interactionStatistic":100},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/qr-25-series-model-370-parts-manual-record-of-change-107-safety-and-parts-ordering-guide/677036.png","ImageObject",300,407,{"name":92,"@type":93},"SundayMiles","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-04",true,{"@type":101,"interactionType":102,"userInteractionCount":8},"InteractionCounter",{"@type":103},"ViewAction",{"@type":105,"mainEntity":106},"FAQPage",[107,113,117],{"name":108,"@type":109,"acceptedAnswer":110},"Where is the model and serial number identification tag located, and what should be recorded?","Question",{"text":111,"@type":112},"The identification tag is located on the handhole plate side of the crankcase. Fill in the model and serial number numbers from the compressor’s tag and reference the page when ordering replacement parts.","Answer",{"name":114,"@type":109,"acceptedAnswer":115},"How should replacement parts be ordered for the QR-25 Series Model 370?",{"text":116,"@type":112},"Replacement parts must be ordered through an authorized Quincy distributor. Provide the model number, record of change number, serial number, the exact part number (do not order by item numbers), and the exact quantity needed.",{"name":118,"@type":109,"acceptedAnswer":119},"What safety, lubrication, and operational cautions are emphasized?",{"text":120,"@type":112},"Do not operate the compressor without the totally belt guard or other required safety equipment. Refer to the Quincy QR-25 Series instruction manual for vital lubrication information, and ensure air used for breathing or food processing meets OSHA 1910.134 or FDA 21 CFR 178.3570 requirements.","https://schema.org",{"og:url":83,"og:type":123,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":125,"canonical":83},"index,follow",{"doc_id":127,"site_id":62},677036,1793777379,{"code":4,"msg":5,"data":130},{"doc_id":127,"user_id":131,"nickname":92,"user_avatar":132,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":133,"file_id":134,"file_url":135,"file_type":136,"file_size":137,"view_count":8,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":138,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":128,"read_time":143},1099529839202,"https://ap-avatar.wpscdn.com/davatar_a8503ba1806abce46bf441b54a3ca4cd","®  \nQR-25  \nSeries  \nModel 370  \nParts Manual Record of Change 107  \nThis 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.  \nOn-line product registration, parts ordering and warranty information is available at www.quincycompressor.com  \nManual No. 2022205800 July 2014 Edition  \nINTRODUCTION  \nThis manual provides information for the following QR-25 Series, Model 370 (Record of Change 107) compressor versions:  \nL Control Version L  \nhead assembly with 2 unloader towers & a hydraulic unloader  \nLS Control Version LS  \nhead assembly with 2 unloader towers, a hydraulic unloader, & a pilot valve with a check valve assembly  \nLVD Control Version LVD  \nhead assembly with 2 unloader towers, a hydraulic unloader, & a pilot valve with a lockout & check valve  \nThese compressors are aircooled, two stage, two cylinder, pressure lubricated compressors, with up to 200 PSIG continuous pressure capability (201 to 250 PSIG intermittant pressure capability with proper configuration;consult factory) . The Model 370 has a 6\" low pressure piston bore and a 3.25\" high pressure piston bore and a 4\" stroke and can be run at 400-1070 RPM.  \nAvailable options included in this manual:  \n-high pressure rated cylinder and head  \n-hooded air filter  \n-hooded air filter / silencer  \nCHANGES  \nsince previous printing (dated January 2014):  \nThe bearing carrier was redesigned with a new oil pump including an oil filter.  \nTABLE OF CONTENTS  \nSerial Number Identification..................................2  \nOrdering Replacement Parts .................................2  \nQuin-Cip Lubricant .................................................2  \nCrankcase Lubricant Capacity ..............................2  \nCrankshaft Group ...................................................3  \nCrankcase Group....................................................4  \nBearing Carrier Group............................................5  \nConnecting Rod & Piston Groups high pressure ...................................................6-7  \nlow pressure .....................................................8-9  \nCylinder & Head Groups Control Versions L, LS, LVD............................. 10  \nHead Assemblies Control Versions L, LS, LVD............................. 11  \nSuction Valve Assembly ...................................... 12  \nDischarge Valve Assembly .................................. 13  \nUnloader Assembly .............................................. 14  \nPneumatic Unloader Assembly........................... 15  \nControl Groups Version L ............................................................ 16  \nVersion LS.......................................................... 17  \nVersion LVD ....................................................... 18  \nPilot Valves............................................................ 19  \nDifferential Setting Chart ..................................... 19  \nSuction Valve Unloader Assemblies...................20  \nGasket Set .............................................................21  \nKits.........................................................................21  \nRecommended Spare Parts.................................22  \nDecals ....................................................................22  \nTypical Unit Parts List ..........................................23  \nQR 370 Quincy Compressor  \nMODEL &  \nSERIAL NUMBER  \nIDENTIFICATION Recoofrd  \nChange No.  \nModel & Serial Number  \nIdentification Tag  \nThe model & serial number tag is located on the handhole plate side of the crankcase. Fill in the numbers from your compressor's tag in the corresponding spaces provided here and reference this page when ordering replacement parts.  \nAll replacement parts are to be ordered through an authorized Quincy distributor. Insist on genuine Quincy parts only! Failure todo so may void warranty.  \nORDE","cbCaiaSpMmgHr38X","https://ap.wps.com/l/cbCaiaSpMmgHr38X","pdf",1380549,28,"English","# INTRODUCTION\n## CHANGES\n# TABLE OF CONTENTS\n## Serial Number Identification\n## Ordering Replacement Parts\n## Quin-Cip Lubricant\n## Crankcase Lubricant Capacity\n## Crankshaft Group\n## Crankcase Group\n## Bearing Carrier Group\n## Connecting Rod & Piston Groups (High pressure / Low pressure)\n## Cylinder & Head Groups (Control Versions L, LS, LVD)\n## Head Assemblies (Control Versions L, LS, LVD)\n## Suction Valve Assembly\n## Discharge Valve Assembly\n## Unloader Assembly\n## Pneumatic Unloader Assembly\n## Control Groups (Version L / Version LS / Version LVD)\n## Pilot Valves\n## Differential Setting Chart\n## Suction Valve Unloader Assemblies\n## Gasket Set\n## Kits\n## Recommended Spare Parts\n## Decals\n## Typical Unit Parts List","[{\"question\":\"Where is the model and serial number identification tag located, and what should be recorded?\",\"answer\":\"The identification tag is located on the handhole plate side of the crankcase. Fill in the model and serial number numbers from the compressor’s tag and reference the page when ordering replacement parts.\"},{\"question\":\"How should replacement parts be ordered for the QR-25 Series Model 370?\",\"answer\":\"Replacement parts must be ordered through an authorized Quincy distributor. Provide the model number, record of change number, serial number, the exact part number (do not order by item numbers), and the exact quantity needed.\"},{\"question\":\"What safety, lubrication, and operational cautions are emphasized?\",\"answer\":\"Do not operate the compressor without the totally belt guard or other required safety equipment. Refer to the Quincy QR-25 Series instruction manual for vital lubrication information, and ensure air used for breathing or food processing meets OSHA 1910.134 or FDA 21 CFR 178.3570 requirements.\"}]","QR-25 Series Model 370 Parts Manual Record of Change 107 - Safety and Parts Ordering Guide | PDF",71]