Kana chisimbiso chevhavha chisina kusimba kana kuti sag yakakura kwazvo, valve inoda kubviswa kuitira kugadzirisa, kugadzirisa kana kuchinjwa. Kuti ubvise vheji, tanga wabvisa chivharo chemusoro wecylinder, bvisa musangano wemaoko evhavhavhavhavha, bvisa pombi yepamusoro-soro, bvisa jekiseni remafuta, bvisa cylinder head nut, uye bvisa cylinder head. Wobva wadzvanya chigaro chevharuvhu chitubu nechishandiso chakakosha chekubvisa vharafu, dzvanya mukati uye kunze zvitubu zvevharuvhu, tora vharavhavhavha yekuvhara clip, mushure mekusunungura, bvisa mukati nekunze zvitubu zvevhavha, uye ipapo vharafu inogona. kubuditswa. Mushure mokunge valve yabviswa, inofanira kuiswa chiratidzo uye haifaniri kuchinjwa panguva yegungano. Uchishandisa dial indicator uye V-bracket, kuyera valve stem flex. Panguva yekuongorora, tsinde yevharuvhu inotsigirwa pamapuranga maviri akafanana neV ane chinhambwe che 100 mm, uye ipapo shandisa dial gauge kutarisa kuti 1/2 yehurefu hwevharuvhu ndiyo curvature. Kana ikadarika muganhu unobvumirwa, inofanira kugadziriswa nemaoko.
Kana vharuvhu ichidonha zvishoma, inogona pasi kuti idzorere kusimba kwayo. Usati wakuya vharafu, vharafu, chigaro chevhavha uye chubhu yekutungamira inofanira kucheneswa. Kuburikidza nekusarudzwa, musoro wevhavhavha yevhavha yega yega inofanira kuenderana, uye zviratidzo zvinofanira kuitwa pamusoro pemusoro wevhavha kuti urege kuvhiringidzika. Iyo manual grinding nzira ndeyotevera:
(1) Isa chitubu chakapfava pahunde yevharuvhu, isa mutsetse wejecha revharuvhu pamateru evharuvhu, shandisa mafuta ekuzora pahunde yevharuvhu, wopinza vharafu muchubhu inotungamira. Ijecha revharuvhu rakakamurwa kuva marudzi maviri: jecha rakaoma uye jecha rakanaka. Kusarudzwa kunoenderana nehuwandu hwekupisa kwevhavha bevel uye chigaro chevhavha bevel. Kuti unyatso kugaya valve yakashandiswa, unogona kushandisa jecha rakaoma kutanga, uye wozoshandisa jecha rakanaka pakukuya. Kana bhenji revhavha richigadziriswa nekukuya kwakadzikama, chigaro chevhavha chinogadziriswa nekugadzirisa zvakare, uye bevel rakakwana, rinogona kungoitwa pasi nejecha rakanaka.
(2) Shandisa vharafu kugaya screwdriver kana rubber twister kutenderedza vharafu kumashure nekudzoka (kona yekutenderera inofanira kunge iri pasi pe180 °) pakukuya. Munguva yekukuya, kusimudza uye kudzvinyirira zviito zvinofanira kuitwa pamwe chete nepamusoro pevhu rinotenderera revhavha kuti uchinje kumhanya-munzvimbo yevhavha uye chigaro kuti uve nechokwadi chekukuya yunifomu. Pakukuya, usashandise simba rakawandisa, usasimudza vharafu, uye rova chigaro chevharuvhu nechisimba kudzivirira kuwedzera bevel kana kukuya maconcave grooves.
3 Ijecha revhavha rinogona kushambidzwa, uye mafuta anoshandiswa kune yakatsetseka, uye ipapo pasi kwemaminitsi matatu kusvika ku5. Panguva yekukuya, usashandise jecha revharuvhu rakawandisa kudzivirira kurasikirwa uye kupera kweimwe nzvimbo yekusangana.
(4) Mutsetse wepasi unofanirwa kuve wakatsetseka uye wakachena, uye hupamhi hwekusangana hunowanzo 1. 5 kusvika 2. 0 mm. Isa vharafu pachigaro chevharuvhu inoenderana, wobva wadzvanya musoro wevharuvhu kakawanda. Kana inoenderera, inopenya grey halo inoonekwa pakati pevhavha inoshanda pamusoro, zvinoreva kuti vharafu iri mune yakajairika kubata nechigaro chevhavha. Kana kuti dhirowa mutsara wepenzura wakapfava yega yega 4 mm panzvimbo yekushanda yevhavha, wobva waisa vharafu mugwara revhavha uye chigaro chevharuvhu, shandura 1/8 kusvika 1/4 kutendeuka, kana kubata zvishoma, kana mitsetse yepenzura yose iri pakati pebhanhire Yakavhiringidzwa, zvichiratidza kuti valve uye chigaro chevhavha zvakavharwa zvakanaka.
