Valavu yotulutsa mfuti yayikulu 723-40-94501

Zofukula zambiri zimakhala ndi mapampu akuluakulu awiri, kotero valavu yaikulu yothandiza imakhala ndi ziwiri (zomwe zimadziwikanso kuti valavu yaikulu yotetezera), motsatana zimayendetsa pampu yaikulu, ndiyeno pampu iliyonse imayang'anira zochita za 3, ndowa ndi mkono waukulu umayenda ndi mbali imodzi. ndi gulu, mkono wapakati, kuzungulira ndi kupatulapo kuyenda kwa mbali ndi gulu, ma valve awiri akuluakulu othandizira (ma valve oyendetsa ndege) amawongolera zochita zitatu zosiyana.

Ndipo potsiriza amakhalanso ndi ma valve awo operekera chithandizo pazochitika zilizonse, monga mkono wonyamulira ndi mkono wotsikirapo womwe uli ndi ma valve awoawo. Valve yaikulu yothandizira makamaka imayang'anira kupanikizika kwa mapampu awiri akuluakulu, kotero kupanikizika kwa zochita zitatu zomwe zimayendetsedwa ndi mpope waukulu ndizofanana, malingana ndi zofunikira, ngati kupanikizika kwa chinthu chimodzi sikukwanira kapena kupitirira, ndiye valavu yapadera yothandizira zochitayo imatha kusinthidwa.

Pa valve yaikulu, pali kusiyana koonekeratu kuchokera ku ma valve ena othandizira. Valavu yayikulu yothandizira chofufutira ndi ntchito yolimbikitsa idzakhala ndi chitoliro chopitilira chimodzi. Vuto la valve yaikulu yothandizira nthawi zambiri ndilokuti kasupe wamkati wathyoka kapena walephera, mphutsi ya valve imavala, ndipo ntchito yonseyo ndi yofooka ndipo kupanikizika sikungakhazikitsidwe.

Pambuyo pofukula kwathunthu kwa PC200-6 hydraulic excavator, chipangizo chogwira ntchito chimatha kuzindikira zochita zosiyanasiyana, koma pampu yayikulu imatumiza phokoso losazolowereka.

Malinga ndi kusanthula koyambirira, akukhulupirira kuti pampu imachotsedwa kapena dera lamafuta limasakanizidwa ndi mpweya. Choncho, choyamba sinthani chipangizo chogwirira ntchito kuti chizindikire kuchuluka kwa mafuta, ndipo fufuzani kuti mafuta a tank hydraulic ali pansi pa mlingo wochepa wa mafuta omwe amawunikira, omwe ndi malo akusowa kwa mafuta. Pambuyo pofunsa dalaivala, mphete yosindikizira ya chitoliro chamafuta othamanga kwambiri chopita kuchipinda chopanda ndodo cha silinda ya ndowa idasinthidwa chifukwa cha kutayikira kwamafuta panthawi yantchito, koma kuchuluka kwamafuta sikunayang'anitsidwe pakapita nthawi. Choncho, choyamba, thanki yamafuta a hydraulic imawonjezeredwa ku mlingo wamafuta, ndipo mayesero amasonyeza kuti phokoso losazolowereka limachepetsedwa, koma likadalipo; Kenaka, kupyolera mu valavu yaikulu yotulutsa mpope kupita ku mpope waukulu pambuyo poyesanso, amapezeka kuti phokoso losazolowereka likadalipo, kusonyeza kuti phokosolo silingathe kuyambitsidwa kwathunthu ndi kupopera kwapampu.