Kutsegula ndi kutseka kwaMAVAVU ZIGAWO  watsekedwa, wosasunthika kapena wosakhoza kutsegula ndi kutseka bwinobwino, kapena sangathe kupitiriza kutsegula ndi kutseka, makamaka chifukwa cha kupanikizana pakati pa tsinde la valve ndi mbali zina, makamaka kupanikizana pakati pa tsinde la valve ndi kulongedza.Nthawi zambiri

Chigoba chonyamula chimapotozedwa ndikugunda tsinde la valve

Njira yothandizira: kukhazikitsa molondola

Kulongedza kumayikidwa molakwika kapena kumangika kwambiri

Njira yochizira: limbitsanitu chodzaza ndi kumasula chodzaza moyenera.

Kuluma kwa tsinde ndi kunyamula gland

Njira yothandizira: kubwezeretsa kapena kukonza.

Kuluma kapena kuluma pakati pa zigawo

Njira yochizira: Patsani mafuta tsinde la valve moyenera.

Zolemba pazitsulo zosindikizira valavu, kuluma kwazitsulo pazitsulo zowala za tsinde la valve ndi kuluma pagawo losindikizidwa la tsinde la valve, ndi zina zotero. Pambuyo posindikiza pamwamba, pali njere zowononga zomwe zimayikidwa pamtunda wosindikiza, koma sichimatsukidwa, kuchititsa kuti malo osindikizira awonongeke;pambuyo ntchito zina, mbewu abrasive kumasulidwa pansi kukokoloka kwa sing'anga ndi kumamatira kusindikiza pamwamba.Vavu imatsegulidwa ndikutsekedwa.Zimayambitsa abrasions.

Njira yochizira: Gwiritsani ntchito zomatira moyenera, ndipo yeretsani pamalo osindikizira mukapera.

Dothi kapena kuwotcherera slag mkati mwa sing'anga sikutsukidwa, kumayambitsa zokopa.

Njira yothandizira: kuyeretsanso.

MAVAVU ZIGAWOtsinde limapaka pakibokosi chosindikizira chopakira ndi chopakira.Sing'anga yomwe ili ndi boron m'kati mwake idzawoneka bwino kuti ipange tinthu tating'onoting'ono tomwe tatayidwa.Pamene kulongedza kukhudzana ndi tsinde la valve, pamwamba pa tsinde la valve idzagwedezeka pamene mukusintha.

Njira yochizira: kukhazikitsa koyenera, sinthani chilolezo cha magawo ndikuwongolera kuuma kwa tsinde la valve.Ulusi wa trapezoidal uli woipitsidwa ndipo mkhalidwe wothira mafuta ndi wosauka;tsinde la valavu ndi ziwalo zofananira ndizopunduka

Njira yochizira: chotsani zinthu zomwe zabedwa, perekani mafuta ku valavu yamkuwa yotentha kwambiri munthawi yake;konzani ziwalo zopunduka.