Mgbe kreenụ gwongworo na-eji ngwaọrụ mpịakọta maka nbudata na nbudata, kwesịrị ijide n'aka na ọkpụrụkpụ nke igwe na-agbagharị agbagharị na-agbanwe agbanwe, nke mere na ojiji nke ndị ọzọ na-eji ire ụtọ, obosara karịa ihe ahụ ga-abụ 50 centimeters n'obosara, machibido iyi uwe iji mejupụta igwe na-akpụgharị, iji gbochie ịpụ.Na ojiji nke ebuli nnukwu ngwá ụlọ elu, kwesịrị ịrụkọ ọrụ na ihe karịrị otu winch nkwonkwo ọrụ, ka winch winding ọsọ ịnọgide na-enwe agbanwe agbanwe, iji hụ na ụlọ elu na ike na-ekwu na itule, iji zere uneven ike na-eduga ebuli ngwá ụlọ elu deformation. .Na ojiji nke slewing usoro ma ọ bụ toggle usoro n'ihi na ebuli, elu elu ala ịnọgide na-enwe nkwụsi ike, mkpa wụnye ofu iji nyere aka, na-ewepụ na-ebuli usoro eme site kehoraizin ebuli.