Zigawo za zitsulo za ufa zimagwiritsidwa ntchito kwambiri mu injini zamagalimoto.Pulley ya zitsulo za ufa ndi zipangizo zina zimapanga pulley yopanda kanthu, kuphatikizapo chipolopolo chokhazikika, mkono wovuta, kasupe wa torsion, kugwedeza ndi manja a masika kuti apange ntensioner, yomwe imatha kusintha mphamvuyo molingana ndi kulimba kosiyana kwa lamba.Pangani njira yopatsirana kukhala yokhazikika, yotetezeka komanso yodalirika.

The tensioner ndi gawo lowopsa lagalimoto ndi zida zina zosinthira.Lamba ndi losavuta kutambasulidwa pakapita nthawi yayitali.Ma tensioner ena amatha kusintha ntchito ya tensioner kuti asinthe kulimba kwa lamba.Nthawi zambiri ndi lamba Sinthani palimodzi, kuti musadandaule za kupsinjika kwa lamba.Kuonjezera apo, ndi tensioner, lamba limayenda bwino, phokoso limakhala lochepa, ndipo lingalepheretse kutsetsereka.

Ntchito ya tensioner ndikusintha kulimba kwa lamba.Nthawi zambiri, amasinthidwa ndi lamba kuti atsimikizire chitetezo.