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transmitter at the steering station and a receiver at the steering engine reversible motor at the steering station geared to the steering pumps small induction motor on the bridge which controls the redder through pulleys variable displacement hydraulic pump driven by a reversible DC motor
rudder will respond sluggishly hydraulic rams will over-speed sight glass will show bubbles ram relief valves will lift
The follow-up gear The rudder angle indicator The synchronous electric transmitter A rudder angle limit switch
with both pumps on line at the same time with one pump on standby with the follow-up gear disconnected only when the rudder is moved amidships
Lobe Screw Radial piston Volute
transmitter tele-motor hydraulic ram hydraulic cylinder
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
trick-wheel follow-up control six-way valve Rapson slide
an improper rudder response hammering noises in the equipment or transmission lines popping or sputtering noises all the above
a differential gear return springs a hydraulic accumulator relief valves
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
lobe type screw type axial piston type volute type
trick wheel accumulator standby pump telemotor
the steering pumps overspeeding a jammed open relief vale a constantly occurring improper rudder response excessive ram pressure
set for maximum torque on the purge and vent stroke in the neutral position rotating backwards
cause loss of hydraulic oil from the system result in extreme damage to the pump cause damage to the pump ff not continually drained from the pump casing result in the system high side pressure to substantially drop off
Loss of vessel steering Overheating of the gyrocompass Jamming of the six-way vale Jamming of the follow-up device
telemeter telemanometer telemotor telemometer
ram relief valves bypass oil to stop rudder movement six-way valve shifts to the neutral flow position steering pump electric motor is de - energized by the transfer switch follow-up gear takes the hydraulic pump off stroke
湘公网安备 43130202000226号