Pamene chisindikizo cha valve sichili cholimba kapena sag ndi yaikulu kwambiri, valve iyenera kuchotsedwa kuti ikonzedwe, kukonzanso kapena kusinthidwa. Kuti muchotse valavu, choyamba chotsani chivundikiro chamutu cha silinda, chotsani mkono wa valve rocker, chotsani chitoliro cha mafuta othamanga kwambiri, chotsani jekeseni wamafuta, masulani nati wamutu wa silinda, ndikuchotsa mutu wa silinda. Kenako akanikizire valavu kasupe mpando ndi chida chapadera kugwetsa valavu, kukanikiza akasupe amkati ndi akunja valavu, chotsani valavu loko kopanira, mutatha kumasula, chotsani akasupe amkati ndi akunja a valavu, ndiyeno valavu imatha. kutulutsidwa kunja. Vavu ikachotsedwa, iyenera kusindikizidwa ndipo sayenera kusinthidwa panthawi ya msonkhano. Pogwiritsa ntchito chizindikiro choyimba ndi V-bracket, yesani tsinde la valve. Poyang'anitsitsa, tsinde la valve limathandizidwa pazithunzi ziwiri zooneka ngati V ndi mtunda wa 100 mm, ndiyeno gwiritsani ntchito dial gauge kuti muwone kuti 1/2 ya kutalika kwa valve ndi kupindika. Ngati idutsa malire ovomerezeka, iyenera kukonzedwa ndi kusindikiza pamanja.
Vavu ikatuluka pang'ono, imatha kugwedezeka kuti ibwezeretse kulimba kwake. Musanayambe kugaya valavu, valavu, mpando wa valve ndi chubu chowongolera ziyenera kutsukidwa. Kupyolera mu kusankha, mutu wa valve subsidence wa silinda iliyonse uyenera kukhala wofanana, ndipo zizindikiro ziyenera kupangidwa pamwamba pa mutu wa valve kuti zisasokonezeke. Njira yogaya pamanja ndi motere:
(1) Ikani kasupe wofewa pa tsinde la valve, ikani mchenga wa valve pamtunda wotsetsereka, ikani mafuta odzola pa tsinde la valve, ndipo ikani valavu mu chubu chowongolera. Mchenga wa valve umagawidwa m'mitundu iwiri: mchenga wouma ndi mchenga wabwino. Kusankhidwa kumadalira kuchuluka kwa kuyaka kwa bevel ya valve ndi mpando wa valve. Pogaya mwachindunji valavu yogwiritsidwa ntchito, mutha kugwiritsa ntchito mchenga wouma popera kaye, ndiyeno gwiritsani ntchito mchenga wabwino popera bwino. Ngati bevel ya valve ikukonzedwa ndi kupukuta kosalala, mpando wa valve umakonzedwanso ndi kubwezeretsanso, ndipo bevelyo yatha, ikhoza kudulidwa ndi mchenga wabwino.
(2) Gwiritsani ntchito valavu pogaya screwdriver kapena rabara twister kuzungulira valavu mmbuyo ndi mtsogolo (makona ozungulira ayenera kukhala osachepera 180 °) popera. Panthawi yopera, kukweza ndi kukanikiza zochita ziyenera kuchitidwa mozungulira pamwamba pa valavu kuti asinthe malo othamanga a valavu ndi mpando kuti atsimikizire kuti akupera mofanana. Mukakupera, musagwiritse ntchito mphamvu mopitirira muyeso, musakweze valavu, ndipo gundani mpando wa valve ndi mphamvu kuti mupewe kukulitsa bevel kapena kugaya ma concave grooves.
(3) Pamene valavu ndi malo otsetsereka a mpando wa valve akugwedezeka kukhala lamba wathunthu komanso wosalala wa annular, zikutanthauza kuti kugaya kwatha. Mchenga wa valve ukhoza kutsukidwa, ndipo mafuta amagwiritsidwa ntchito pamtunda, ndiyeno pansi kwa mphindi 3 mpaka 5. Panthawi yopera, musagwiritse ntchito mchenga wambiri wa valve kuti muteteze kuwonongeka ndi kuwonongeka kwa malo ena okwerera.
(4) Malo otsetsereka apansi ayenera kukhala osalala komanso oyera, ndipo m'lifupi mwake ndi 1. 5 mpaka 2. 0 mm. Ikani valavu pampando wofananira valavu, ndiyeno gwirani valavu mutu kangapo. Ngati phokoso lopitirira, lowala la imvi likuwonekera pakati pa valve yogwira ntchito, zikutanthauza kuti valavu imagwirizana bwino ndi mpando wa valve. Kapena jambulani pensulo yofewa mamilimita 4 aliwonse pamalo ogwirira ntchito a valve, kenaka ikani valavu mu chiwongolero cha valve ndi mpando wa valve, tembenuzirani 1/8 mpaka 1/4 kutembenuka, kapena pangani kangapo, ngati mizere ya pensulo yonse ili pakati pa lamba Wosokoneza, kusonyeza kuti valavu ndi mpando wa valve watsekedwa bwino.
