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It then details under-hood inspection steps left-to-right, covering hood latches, engine appearance, fluid levels, hoses, wires, belts, steering components, frame and suspension parts, brakes, tires, and related hardware, emphasizing identifying defects and verifying secure installation.",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/exam/","Exam",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/cdl-pre-trip-inspection-procedure-checklist-guide/347655/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/cdl-pre-trip-inspection-procedure-checklist-guide/347655.png","ImageObject",300,407,{"name":42,"@type":43},"Theodore","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-11-08","2026-09-22",true,{"@type":52,"interactionType":53,"userInteractionCount":55},"InteractionCounter",{"@type":54},"ViewAction",15,{"@type":57,"mainEntity":58},"FAQPage",[59,65,69],{"name":60,"@type":61,"acceptedAnswer":62},"What is the purpose of the CDL pre-trip inspection?","Question",{"text":63,"@type":64},"The inspection ensures the vehicle is safe to operate. It requires drivers to complete key checks and be able to explain results.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"What must be done before leaving the cab during the inspection?",{"text":68,"@type":64},"The procedure includes engine start and in-cab inspection as part of all pre-trip tests. Drivers also keep the vehicle key in their pocket and carry a rag and flashlight.",{"name":70,"@type":61,"acceptedAnswer":71},"How should drivers check tire air pressure during the pre-trip?",{"text":72,"@type":64},"Drivers must say: “to check the air in the tires I would use a tire gauge” and then verify tire condition and valve stem security.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},347655,1790318980,{"code":4,"msg":82,"data":83},"success",[84,88,92,95,100,105,110,115,120,123,127],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":85,"show_sort_weight":86,"slug":87},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":89,"show_sort_weight":90,"slug":91},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":93,"slug":94},70,"exam",{"id":96,"doc_module":4,"doc_module_name":25,"category_name":97,"show_sort_weight":98,"slug":99},5,"Comic",60,"comic",{"id":101,"doc_module":4,"doc_module_name":25,"category_name":102,"show_sort_weight":103,"slug":104},6,"Technology",50,"technology",{"id":106,"doc_module":4,"doc_module_name":25,"category_name":107,"show_sort_weight":108,"slug":109},7,"Healthcare",40,"healthcare",{"id":111,"doc_module":4,"doc_module_name":25,"category_name":112,"show_sort_weight":113,"slug":114},8,"Research & Report",30,"research-report",{"id":116,"doc_module":4,"doc_module_name":25,"category_name":117,"show_sort_weight":118,"slug":119},9,"Religion & Spirituality",20,"religion-spirituality",{"id":118,"doc_module":4,"doc_module_name":25,"category_name":121,"show_sort_weight":118,"slug":122},"World Cup","world-cup",{"id":124,"doc_module":4,"doc_module_name":25,"category_name":125,"show_sort_weight":124,"slug":126},10,"Lifestyle","lifestyle",{"id":128,"doc_module":4,"doc_module_name":25,"category_name":129,"show_sort_weight":96,"slug":130},19,"General","general",{"code":4,"msg":82,"data":132},{"doc_id":79,"user_id":133,"nickname":42,"user_avatar":134,"doc_module":4,"category_id":33,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":55,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":101,"language":140,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":12,"update_tm":144,"read_time":55,"preview_page_count":4},7971461740886,"https://ap-avatar.wpscdn.com/davatar_3d24733baf745e90a7e4bdd5f77d97b2","CDL Pre-Trip Inspection Procedure  \nThe intent of this inspection is to ensure that the vehicle you are about to drive is safe to operate. There are several key points which you either need to do or be prepared to explain. All tests for the pre-trip include engine start and in-cab inspection. With any vehicle components you must be able to point and touch the equipment. Drivers are not expected crawl underneath the vehicle as part of the inspection.  \nSTART  \n• The vehicle key must be kept in your pocket, have a rag and flashlight with you  \n• As you approach the vehicle look under the vehicle for leaks (oil, coolant and transmission fluid)  \n• Look to see if the vehicle is leaning to the left or right which may indicate a suspension problem.  \nFRONT OF VEHICLE  \n1. Check condition of all vehicle light lens (clearance, headlights, turn signals/emergency flashers)  \n• Make sure the lights shall be secure, clean, good condition (not broke, cracked) and proper color (yellow in front)  \n2. Windshield not cracked or broken  \n• No other stickers in the windows except DOT inspection and with current state inspection stickers  \n3. Wipers are present and against the windshield  \n4. Side and fender mirrors are secure  \n• Not broken or cracked, no missing bolts with the glass being clean and clear  \n5. Grill is not cracked with nothing blocking the radiator  \n6. Bumper is secure  \n• No bolts missing or cracks  \nUNDER HOOD – start on left side and then go to the right side  \n1. Check hood latches for cracks and dry rot, both ends are secure with no bolts missing  \n2. Check appearance of engine  \n3. Check that hoses are secure with no leaks, cracks or excessive wear  \n4. Check all wires so that there are no bare, broken or exposed wires and the wires are secure  \n5. Check engine oil level. It must be between full and add.  \n6. Check automatic transmission level – if automatic (usually when engine is warm, know if you can check cold or vehicle needs warmed up. Same procedure for oil must be between full and add.  \n7. Power steering fluid-engine should be off and know if it is a sight glass or dip stick. Dip stick check as you would other fluids  \n8. Power steering pump is belt (up to ¾ inch play at center of the belt) or gear driven and check hoses, no leaks and is secure.  \n9. Know where the water pump is located  \n10. Check all water/heater hoses, secured with all bolts and clamps present with no leaks.  \n11. Check air compressor and hoses, they are secure with all bolts and clamps present with no leaks. Is unit belt (up to ¾ inch play at center of the belt) or gear driven  \n12. Check steering column and box that it’s secure with all bolts and clamps  \n• Check the following:  \no Pitman arm  \no Steering knuckle  \no Drag link is secure with all cotter keys and castle nuts  \no No cracks or broken welds  \n13. Check frame for cracks and broken welds  \n• Spring hangers are secure to the frame with nuts and bolts, check for anything that is cracked, missing  \nor broken. Check for missing and damaged equipment, nothing has shifted, missing, cracks or broken welds. Check at each point where secured to the vehicle frame and axle(s) .  \n• Springs are secure with u-bolts with nothing missing and not broken  \n• Shocks are secure at axle and frame with all bolts with no leaks, dents and rubber gaskets are not cracked or dry rotted.  \n14. Serpentine belt – if present is not frayed, cracked with no movement or play in the belt (up to ¾ inch play at center of the belt) .  \n15. Service brake chamber with hoses are secure with all clamps, bolts and nuts with no dents or leaks.  \n16. Slack adjusters and push rod are not bent, broken, loose or missing parts. Cotter keys or pins are secure. No more than 1 inch play on manual slack adjusters.  \n17. Left front tire, even wear with no less than 4/32 inch in all groves, no recaps with no damage to the walls with a secure valve stem and cap.  \nMust say “to check the air in the tires I would use a tire gauge”  \n• Lu","cbCaidl6WPEh9xtU","https://ap.wps.com/l/cbCaidl6WPEh9xtU","pdf",238987,"English","# CDL Pre-Trip Inspection Procedure\n## Start and In-Cab Inspection\n## Front of Vehicle\n## Under Hood (Left Side)\n## Under Hood (Right Side)","[{\"question\":\"What is the purpose of the CDL pre-trip inspection?\",\"answer\":\"The inspection ensures the vehicle is safe to operate. It requires drivers to complete key checks and be able to explain results.\"},{\"question\":\"What must be done before leaving the cab during the inspection?\",\"answer\":\"The procedure includes engine start and in-cab inspection as part of all pre-trip tests. Drivers also keep the vehicle key in their pocket and carry a rag and flashlight.\"},{\"question\":\"How should drivers check tire air pressure during the pre-trip?\",\"answer\":\"Drivers must say: “to check the air in the tires I would use a tire gauge” and then verify tire condition and valve stem security.\"}]","CDL Pre-Trip Inspection Procedure - Checklist Guide | PDF",1790068409]