. OPERATION OPERATION Load: 63 tons 3 - 113 HD605-7 Metho d of using Examp le: Down hill distan ce: 1500 l resistan ce: -11% [grade resistance: -1 3%, rolling resistance: 2% Obtain th e maximu m permissible sp eed and the transmiss ion speed range from the graph when traveling d ownhill under the above c onditions 1. Use th e brake p erforman ce graph for the downhill dista 2. Startin g from po int (A) wh ich corresponds to the overall weight of the machine, dr aw a perpendicular lin e down. 3. Take th e point w here it c rosses th e line for travel resist ance -11% as (B) and dra w a horizontal l ine. 4.
Take th e point w here it cr osses the performance curve a s (C), and draw a perpendicularl ine down . Take t he point where this line c rosses th e travel 5. As a re sult of th e above, The m aximum p ermitted speed c hanges from point (D) The sp eed rang e change s from p This maxi mum per missible s peed is one guideline determi ned from the retarder brake performance, so on a n actual jobsite, d etermine a safe tra vel spee d below the maximum permissible speed to mat ch the conditions of the jobsite so that th e retarde r brake oi l temperature gauge is always in the white range when t raveling.