I-crankshaft yinxalenye ephambili ye-injini, kwaye ukusebenza kwayo kuhambelana ngqo nomgangatho kunye nobomi be-injini. Ubume bomgangatho we-crankshaft bumisela ngokuthe ngqo umgangatho wokusebenza kunye nenqanaba lokhuseleko lwe-injini ye-diesel. Ukuba i-crankshaft iyaqhubeka ukusetyenziswa emva kokugoba kunye nokuguqulwa kwe-torsion, iyakukhawulezisa ukunxiba kwe-crankshaft yokudibanisa intonga, kwaye ibangele iintanda kunye nokwaphuka kwi-crankshaft. Ngaphambi kokuba injini idityaniswe, kufunyaniswa ukuba ukugoba kwe-crankshaft kudlule umgangatho wobugcisa, ngoko ke i-coaxial bush akufanele idityaniswe ngokungafuni. Ukuba i-crankshaft ene-curvature egqithisileyo ifakwe kunye nezihlahla eziphambili, i-crankshaft iya kuba lukhuni kwaye ikhululeke ngexesha lokusebenza. I-crankshaft iya kuvelisa uxinzelelo olongezelelweyo kwi-bearing bush, kwaye ngenxa yoko, isihlahla esithwalayo siya kuphelelwa ngokukhawuleza, okunokubangela ingozi yokutsha kwehlathi. Eli nqaku lihlalutya unobangela wokugoba nokujijeka kwe-crankshaft.

Izizathu zokugoba kunye nokujijeka kwe-crankshaft:
(1) Xa i-crankshaft igaya kwaye icutshungulwa, indawo yokumisa i-clamping ayifanelekanga, kwaye ukuchaneka kwe-grinder ngokwayo ayiphezulu.
(2) I-injini igcwele, ngokuqhubekayo "deflagration", kwaye umsebenzi awuzinzile, ukuze amandla ejenali nganye angalingani.
(3) Umsantsa ophakathi kwebheringi ye-crankshaft kunye nentsimbi yokudibana inkulu kakhulu, kwaye ukuxinana kwahlukile, okubangela ukuba iziko lejenali eliphambili lingadlulanga kwaye libe nefuthe ngexesha lokusebenza.
(4) Xa intsimbi ye-injini iphelile kwaye i-crankshaft ibanjwe, i-crankshaft iya kugoba kwaye ijike.
(5) Intshukumo ye-axial ye-crankshaft inkulu kakhulu, okanye ubunzima bepiston kunye neqela lentonga yokudibanisa yahlukile, kwaye umahluko mkhulu kakhulu.
(6) Ixesha lokulayita liphambi kwexesha kakhulu, okanye kudla ngokubakho iiplagi zentlantsi ezi-1 okanye ezi-2 ezingasebenzi kakuhle, nto leyo ebangela ukuba injini ingasebenzi kakuhle kwaye i-crankshaft ifumane amandla angalinganiyo.
(7) Ibhalansi ye-crankshaft yaphukile, okanye ibhalansi yeqela le-crankshaft yokudibanisa intonga kunye ne-flywheel yaphukile; i-crankshaft igugile ngokugqithisileyo, amandla angonelanga kunye nokuqina, okanye ukugoba kunye nokushukuma ngenxa yokudityaniswa okungafanelekanga.
(8) Izinto ze-crankshaft azilungile, okanye i-crankshaft ikhubazekile ngenxa yokubekwa ngokungekho ngqiqweni ixesha elide.
(9) Xa imoto iqalisa ukuqhuba, isenzo sokukhulula i-clutch pedal sikhawuleza kakhulu, kwaye uthethathethwano aluthambile. Okanye uqalise i-injini ngamandla anamandla, okubangela ukuba i-crankshaft ijijwe ngokukhawuleza.
(10) Sebenzisa iziqhoboshi ezingxamisekileyo ngelixa uqhuba, okanye sebenzisa igiya eliphezulu kunye nesantya esiphantsi ukuze uqhube ngokuthandabuza xa amandla e-injini engonelanga.