Kwa Komatsu PC200-8 valavu yopumira ya Boom Main gun relief valve

Zomwe tikukamba mu valve yaikulu yothandizira ndi pamene kupanikizika kwa dongosolo kumakwera pang'ono, chitsanzo chachisanu ndi chimodzi
Pamene kusiyana kwapakati pakati pa mapeto awiri a valavu yaikulu ya plunger kupitirira ntchito ya kasupe wofewa wa valve yaikulu, valavu yaikulu ya plunger imakwezedwa, valavu yaikulu imatsegulidwa, kasupe amagwirizanitsidwa ndi thanki yamafuta, kuchuluka kwakukulu. amafuta amapindikizidwa kudzera pa doko lalikulu la vavu, kenako amabwerera ku thanki yamafuta kudzera pa doko lobwerera mafuta, yomwe ndi njira yowongolera kuthamanga kusefukira. Kumvetsetsa mfundo iyi kumatha kumvetsetsa mfundo yogwirira ntchito ya boom kuti valavu ikhale pansi pofananiza.
Pamene dzanja la hydraulic excavator latsitsidwa, ndikofunikira kuzindikira kuti limadalira valavu ya PPC yomwe imayendetsedwa kuchokera pakusintha.
Mafuta otsogolera otsogolera amayamba kukankhira valavu yomwe imayendetsa valavu yaikulu (valavu ndi yofanana ndi valavu yoyendetsa ndege, yomwe imayenda panthawiyi.
Mafuta omwe ali m'chipinda chapansi pa mkono amabwerera ku thanki kupyolera mu bowo la mafuta lamkati la valve yaikulu kudzera munjira yotsegulidwa ndi valavu yotsegulira. Pamene kuthamanga kwa mafuta kumadutsa mu dzenje losungunuka la valavu yaikulu ya valavu yogwira ntchito, kutsika kwapakati kumapangidwa, kotero kuti kupanikizika kwa mafuta kumagwira pamwamba ndi kumunsi kwa valavu yaikulu sikuli kofanana, kupanga kusiyana kwina kwapakati. Vavu yaikulu imatsegulidwa, ndipo mafuta opanikizika akuyenda kuchokera pansi pa boom amayenda kudzera mu valve yaikulu kupita ku valve yolamulira. Pakakhala kupanikizika kwakukulu m'munsi mwa silinda ya boom, valavu yotetezera mu valve yogwira imatsegulidwa kuti iteteze.