KFA45 Hydraulic System Overview Proposed simplified hydraulic schematic Hydraulic system functionality Leif Atle Govertsen TE-ABT-KSC 08/11/2017

Or Proposed simplified hydraulic schematic (one generator) 2 Circulation pumps 1 Suction pump Or 2 Circulation pumps Air compressor

Hydraulic system functionality Oil distribution RESERVOIR Main switch Dump switch Oil exits the pump and goes the 3-way valve Passes through the Oil filter and heat exchanger Distributes to the generators Returns from generators Circulates

Hydraulic system functionality Oil distribution GENERATORS Oil flows to the inlet valve Passes through the valve to the switch Heats up in the generator Returns to the reservoir Same for all switches Main switch Dump switch

Hydraulic system functionality Bypassing Main switch X Open bypass valve and close inlet valve Oil circulation in switch stopped X Close switch outlet valve Main switch Dump switch

Hydraulic system functionality Draining Main switch W/SUCTION PUMP X Valve open Open vacuum and drain valve Start suction pump X Main switch Dump switch

Hydraulic system functionality Draining Main switch W/AIR PRESSURE Connect air pressure To vacuum valve X Open drain valve Pressurize switch housing X Main switch Dump switch

Hydraulic system functionality Filling Main switch Vacuum pump connected and started X X Vacuum in switch generated Open inlet valve Oil flow towards switch X X Switch fills up Vacuum stopped and closed Open outlet valve Main switch Dump switch Close bypass valve

Hydraulic system functionality Circulation back to moral Main switch Dump switch

Hydraulic system functionality Thoughts? Leif Atle Govertsen TE-ABT-KSC 08/11/2017

Fin Leif Atle Govertsen TE-ABT-KSC 08/11/2017