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The speed adjustment allows adjustment of the speed of the unit when it is off line, and it also allows adjustment of the loading when the unit is on line. The mechanism by which it accomplishes its purpose depends on the design of the governor, but in all cases, adjusting the speed changer moves the pilot valve off center, which causes the gates to move (figure 6). If the unit is off line the gates will continue to move until the change in unit speed causes the flyballs to move enough to recenter the pilot valve. When. | Problems and Solutions in Mechanical Engineering U.K. Singh Manish Dwivedi Problems and Solutions in Mechanical Engineering This page intentionally left .
