Tests in order to avoid turning the hydraulic pump safety valve open, during the trial before the safety valve must be locked Steering hydraulic pump.

试验时为了避免转向液压泵安全阀的开启，在试验前，必须将转向液压泵安全阀锁死。

youdao

Hydraulic steering pump is assembled behind of air compressor and is driven by cross block.

液压转向泵装在空气压缩机的后面，通过十字块驱动。

youdao

Failures which can be solved by minor adjustment on brake pump, wheel, steering hydraulic cylinder, and micro-valve, connect level, mast roller, steering axle, etc. are excluded.

像总泵、车轮、转向液压缸、微动阀、连杆、门架滚轮、转向桥等部位，只要靠紧固进行调整就能修理的故障。

youdao

E-Steer which eliminates the need for the traditional power-steering system's hydraulic pump, hoses, fluid and belts.

ECONOMIST: MONITOR

No other compact economy car outside of a Mini Cooper offers as much stick-and-rudder fun as the 3: The steering (hydraulic, with an electric pump) is tack-sharp and precise, with almost no torque steer and a gratifying heft that gathers as you turn the wheel.

WSJ: 2012 Mazda3 i Grand Touring Review: It Really Moves the Needle (Not the Gas One) | Rumble Seat by Dan Neil

Controlling steering using electric motors also helps to reduce fuel consumption and hence carbon-dioxide emissions. (Electric motors require power only when the steering wheel is turned, whereas a hydraulic pump drains power from the engine all the time.) Ford reckons 90% of its cars will have electronic steering within three years.

ECONOMIST: Rational consumer