{"product_id":"woodward-8561-882-psg-governor-mechanical-speed-controller","title":"Woodward 8561-882 PSG Governor Mechanical Speed Controller","description":"\u003carticle\u003e\n\u003ch3\u003e\n\u003cstrong\u003eProduct Description\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eWoodward 8561-882\u003c\/strong\u003e PSG Governor is a precision mechanical-hydraulic speed control device engineered for Detroit Diesel engines operating in marine propulsion systems, industrial equipment, and standby or prime power generators. By using a pressure-sensitive hydraulic control mechanism, the governor continuously regulates fuel rack position to maintain stable engine speed despite load fluctuations.\u003c\/p\u003e\n\u003cp\u003eDesigned for durability and long operational life, the PSG series governors are widely applied in heavy-duty diesel environments where consistent speed regulation and reliable mechanical control are essential.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e8561-882\u003c\/strong\u003e model integrates a compact hydraulic control assembly with robust mechanical linkages, allowing accurate fuel control and dependable performance even under demanding operating conditions.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003e\nParameter\n\u003c\/th\u003e\n\u003cth\u003e\nSpecification\n\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nModel\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e8561-882\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nProduct Series\n\u003c\/td\u003e\n\u003ctd\u003e\nPSG Governor\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nManufacturer\n\u003c\/td\u003e\n\u003ctd\u003e\nWoodward\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nControl Type\n\u003c\/td\u003e\n\u003ctd\u003e\nMechanical-Hydraulic Speed Governor\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nOperating Principle\n\u003c\/td\u003e\n\u003ctd\u003e\nPressure-Sensitive Hydraulic Regulation\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nSpeed Control Function\n\u003c\/td\u003e\n\u003ctd\u003e\nAutomatic fuel rack adjustment for constant engine speed\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nCompatible Engines\n\u003c\/td\u003e\n\u003ctd\u003e\nDetroit Diesel 6V-53, 6V-71, 6V-92, 8V-71, 8V-92\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nSpeed Stability\n\u003c\/td\u003e\n\u003ctd\u003e\nHigh precision mechanical regulation\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nMounting Type\n\u003c\/td\u003e\n\u003ctd\u003e\nDirect engine mounting with mechanical linkage\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nConstruction\n\u003c\/td\u003e\n\u003ctd\u003e\nHardened steel and precision hydraulic components\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\n\u003cstrong\u003eKey Operational Characteristics\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003eThe PSG governor architecture uses a hydraulic control chamber that reacts to engine speed variations. When load conditions change, the governor automatically adjusts the fuel rack position through a mechanical linkage system. This ensures that the engine maintains its preset operating speed.\u003c\/p\u003e\n\u003cp\u003eKey engineering advantages include:\u003c\/p\u003e\n\u003cp\u003e• Stable mechanical speed regulation without electronic components\r\n• High durability for continuous operation in marine and industrial environments\r\n• Compatibility with multiple Detroit Diesel V-series engines\r\n• Compact design suitable for direct installation on engine control assemblies\r\n• Reliable performance in environments with vibration and temperature variation\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eTypical Application Environments\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eWoodward 8561-882\u003c\/strong\u003e governor is commonly installed in diesel power systems that require dependable mechanical speed control.\u003c\/p\u003e\n\u003cp\u003eTypical applications include:\u003c\/p\u003e\n\u003cp\u003e• Marine propulsion and auxiliary engines\r\n• Industrial pump and compressor drive systems\r\n• Standby and continuous-duty diesel generators\r\n• Construction and heavy machinery power units\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eInstallation and Maintenance Notes\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003eCorrect alignment between the governor output shaft and the engine fuel control rack is essential for proper operation. Installation should follow Woodward’s official PSG governor service manual.\u003c\/p\u003e\n\u003cp\u003eRoutine maintenance recommendations include:\u003c\/p\u003e\n\u003cp\u003e• Inspection of mechanical linkages for wear or misalignment\r\n• Periodic checking of hydraulic components and seals\r\n• Verification of speed adjustment calibration during scheduled engine servicing\u003c\/p\u003e\n\u003cp\u003eProper installation and maintenance ensure long-term stability and accurate engine speed regulation.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eFAQ\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat engines are compatible with the 8561-882 PSG governor?\u003c\/strong\u003e\r\nThe governor is designed for several Detroit Diesel V-series engines, including 6V-53, 6V-71, 6V-92, 8V-71, and 8V-92 configurations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this governor require electronic control integration?\u003c\/strong\u003e\r\nNo. The PSG series uses a purely mechanical-hydraulic system and does not require electronic control modules.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the governor maintain speed during sudden load changes?\u003c\/strong\u003e\r\nYes. The pressure-sensitive hydraulic mechanism responds to load variation and adjusts fuel delivery to maintain the preset engine speed.\u003c\/p\u003e\n\u003c\/article\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":52762120257821,"sku":"8561-882","price":9.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/5387\/3181\/files\/8516-039-1_1000_3aa1fc87-a9b6-42ec-afba-8498fa4927f9.jpg?v=1787222572","url":"https:\/\/www.6gcontrols.com\/th\/products\/woodward-8561-882-psg-governor-mechanical-speed-controller","provider":"6G Controls","version":"1.0","type":"link"}