Lube oil system & water cooling system of HHP/GM (WDG4) loco are covered in this PPt. Keyword/Tags: System, Lube oil system, water, cooling,system, WDG4, HHP, GM, Diesel ,loco, pre-lubrication , water pump,Hot Oil DetectorPDF: DSGM- GM Mech system-II(LOS & WCS).pdfInstitute Name: Indian Railways Institute of Mechanical & Electrical Engineering