Isitimela esingasiwo umhlahlandlela kanye nokunyakaza kwe-crankshaft, ethuswa kancane isondo le-eccentric, lapho i-motor crankshaft ihamba khona futhi ipuleti lokuphakelayo lidlidliza kancane ukwenza okubalulekile kuthuthuke ngokushesha, ukuze impahla ingakhubazeki kalula futhi iphuke. .