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the four-way control valve failing to shift the bleeder valve sticking in the open position cold hydraulic fluid a clogged air vent falter on the oil reservoir
rudder will respond sluggishly hydraulic rams will over-speed sight glass will show bubbles ram relief valves will lift
compressed air electricity hydraulic oil compressing air
Electric Hydraulic Air All of the above
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sluggish response speed droop variations isochronous governing sensitivity increase
electric motor hydraulic motor compressed air turning gear
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hydraulic steering follow-up steering remote control steering air controlled steering
the pump over-speeding an improper rudder response bubbles in the sight glass ram relief valves lifting
an improper rudder response hammering noises in the equipment or transmission lines popping or sputtering noises all the above
transmit the rudder angle to the bridge indicator prevent the control linkage from striking the stops when hard over automatically purge all entrained air from the system send hydraulic signals to the receiving unit
steam plants, electric motors and compressed air diesel engine, hydraulic machinery and compressed air steam plants, electric motors and hydraulic machinery diesel engines, steam plants and hydraulic machinery
compressed air hydraulic oil electricity All of the above
supplying high pressure oil into a hydraulic motor supplying high temperature air into the cylinder supplying high pressure air into the cylinder electrical igniting
Disconnect the battery cables from the starting motor Drain the hydraulic fluid from the governor sump Block the flow of cooling air to the radiator Secure the fuel supply and block the air intake
Electric power and starting air Lube oil standby pump and control air Hydraulic switch and engage jacking gear Motor drain and pneumatic control system power
Dissipate heat Trap foreign matter Separate air from the oil All of the above
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