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Pankhani yonyamula katundu wolemetsa, kukhala ndi pini ya mfumu yodalirika komanso yapamwamba ndikofunikira. Pini ya mfumu ndi gawo lofunikira kwambiri pa makina achisanu a wheel hitch, omwe amapereka kulumikizana kotetezeka pakati pa ngolo ndi galimoto yokoka. Chimodzi mwazinthu zodalirika zomwe zimagwiritsidwa ntchito popanga zikhomo zachifumu ndi 40CR, yomwe imadziwika ndi mphamvu zake komanso kulimba kwake. Izi zimatsimikizira kuti pini ya mfumu imatha kupirira kupsinjika ndi kulemera kwa ngoloyo, ndikupangitsa kuti ikhale yotetezeka komanso yokhazikika yokokera.