[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-647209-105":59,"doc-detail-647209-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","trw-automotive-commercial-steering-systems-maintenance-guidelines","TRW Automotive - Commercial Steering Systems - Maintenance Guidelines","","Guide focused on diagnosing and correcting commercial vehicle steering-related problems, intended for trained professional mechanics and used alongside vehicle and component service manuals. Provides hazard warning definitions (warnings, cautions, notes) and emphasizes safe handling and necessary precautions with internal components and hot hydraulic fluids. Includes requirements for using a Power Steering System Analyzer (PSSA) to measure flow and pressure and support accurate steering system analysis.",{"@graph":69,"@context":122},[70,84,105],{"@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":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/trw-automotive-commercial-steering-systems-maintenance-guidelines/647209/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/trw-automotive-commercial-steering-systems-maintenance-guidelines/647209.png","ImageObject",300,407,{"name":92,"@type":93},"mieayamfan","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-09","2026-10-23",true,{"@type":102,"interactionType":103,"userInteractionCount":44},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"Who is this guide intended for?","Question",{"text":112,"@type":113},"It is intended for properly trained, professional mechanics, not do-it-yourselfers. It should be used with vehicle and component service manuals.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What is the PSSA and why is it required?",{"text":117,"@type":113},"The Power Steering System Analyzer (PSSA) measures flow and pressure and provides a hydraulic load on the pump. TRW recommends not troubleshooting a steering system without using a PSSA.",{"name":119,"@type":110,"acceptedAnswer":120},"What safety precautions does the guide emphasize?",{"text":121,"@type":113},"The guide advises taking necessary precautions when working with internal vehicle components and hot hydraulic fluids. It also defines warnings and cautions to prevent personal injury, death, or equipment damage.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},647209,1792854770,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":44,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145,"preview_page_count":4},962090893677,"https://ap-avatar.wpscdn.com/davatar_3d24733baf745e90a7e4bdd5f77d97b2","TRW Automotive  \nCommercial Steering Systems  \nSteering System  \nMaintenance Guidelines  \nHazard Warning Definitions  \n\n|  | \u003Cbr>| | A warning describes hazards or unsafe practices which could result in severe personal injury or death. |\n| --- | --- | --- | --- |\n|  |  |  |  |\n\n\n|  | \u003Cbr>| | A caution describes hazards or unsafe practices which could result in personal injury or product or property damage. |\n| --- | --- | --- | --- |\n|  |  |  |  |\n\n\n| | A note gives key information to make following a procedure easier or quicker. |\n| --- | --- |\n|  |  |\n\nNotice  \nThis guide was prepared for the purpose of providing general advice concerning the diagnosis and correction of commercial vehicle steering related problems. This guide is intended for the use of properly trained, professional mechanics, NOT “Do-it-Yourselfers”. Also, this guide should be used in conjunction with service manuals provided by both the vehicle and component manufacturers. Diagnosis and correction of commercial vehicle steering related problems should only be handled by properly trained, professional mechanics who have the proper equipment, tools, instructions and know-how to perform the work properly and safely.  \nPower Steering System Analyzer (PSSA) Gauge  \nSome of the tests in this manual require the use of a PSSA. This device is a combination flow meter, shut-off valve, and pressure gauge. This tool will allow you to measure flow and pressure, and provide a load on the pump through the hydraulic lines of the steering system. This tool is required to correctly analyze a steering system. TRW recommends that you DO NOT BEGIN TROUBLESHOOTING A STEERING SYSTEM WITHOUT THE USE OF A PSSA. If you are not sure how to use a PSSA, you may refer to the video available through our website [at: www.trucksteering.com. This](at: www.trucksteering.com. This) video compliments the tests in this book which require the use of the PSSA.  \nThroughout this troubleshooting guide, test procedures are recommended to help locate the cause of each complaint. While performing these tests,  \nTRW advises that you TAKE NECESSARY PRECAUTIONS when working with internal vehicle components and hot hydraulic fluids.  \n© TRW Inc., 2008  \nTable of Contents  \nPreventative Maintenance Guidelines ............................................... 5  \nApproved Fluids and Grease................................................................. 6  \nInput Shaft Seal Replacement .............................................................. 7  \nSeal Removal.................................................................................... 8  \nSeal Inspection ................................................................................. 9  \nSector Shaft Adjustment...................................................................... 10  \nPoppets ................................................................................................... 11  \nResetting Criteria ........................................................................... 11  \nSystem Identification...................................................................... 12  \nInitial Poppet Setting Procedure .................................................... 12  \nPoppet Resetting Single Gear System ........................................... 13  \nPoppet Resetting Mirror System .................................................... 15  \nPoppet Resetting Reverse System ................................................. 17  \nMain Gear Adjustment ................................................................... 18  \nRotary Cylinder Adjustment ........................................................... 18  \nAir Bleeding the Steering System ..................................................... 19  \nVisual Identification........................................................................ 19  \nAuto Bleed Gears ........................................................................... 19  \nMaual Bleed Gears.............................","cbCaipXrJws2XuV6","https://ap.wps.com/l/cbCaipXrJws2XuV6","pdf",7197485,36,"English","# Preventative Maintenance Guidelines\n## Approved Fluids and Grease\n## Input Shaft Seal Replacement\n## Seal Removal\n## Seal Inspection\n## Sector Shaft Adjustment\n## Poppets\n## Resetting Criteria\n## System Identification\n## Initial Poppet Setting Procedure\n## Poppet Resetting Single Gear System\n## Poppet Resetting Mirror System\n## Poppet Resetting Reverse System\n## Main Gear Adjustment\n## Rotary Cylinder Adjustment\n## Air Bleeding the Steering System\n## Visual Identification\n## Auto Bleed Gears\n## Maual Bleed Gears\n## Flushing the Steering System\n## Power Steering System Analyzer (PSSA) Application and Use","[{\"question\":\"Who is this guide intended for?\",\"answer\":\"It is intended for properly trained, professional mechanics, not do-it-yourselfers. It should be used with vehicle and component service manuals.\"},{\"question\":\"What is the PSSA and why is it required?\",\"answer\":\"The Power Steering System Analyzer (PSSA) measures flow and pressure and provides a hydraulic load on the pump. TRW recommends not troubleshooting a steering system without using a PSSA.\"},{\"question\":\"What safety precautions does the guide emphasize?\",\"answer\":\"The guide advises taking necessary precautions when working with internal vehicle components and hot hydraulic fluids. It also defines warnings and cautions to prevent personal injury, death, or equipment damage.\"}]","TRW Automotive - Commercial Steering Systems - Maintenance Guidelines | PDF",1792787441,91]