Lub luag haujlwm tseem ceeb ntawm cov saw hlau tsav yog xa lub zog thiab kev txav mus los, kev ntseeg siab hloov lub zog los ntawm lub zog tsav mus rau lub zog tsav kom lub tshuab ua haujlwm kom raug ntawm qhov xav tau ceev thiab kev taw qhia. Vim hais tias cov saw thiab sprocket koom ncaj qha, slippage yog tsawg, tso cai rau ib tug meej kis tau tus mob piv uas ua tau raws li cov khoom yuav tsum tau kom raug thiab stability.
Ntxiv nrog rau kev xa hluav taws xob, cov saw hlau tsav tsheb muaj peev xwm tuav cov khoom hnyav thiab txuas qhov chaw loj nyob nruab nrab ntawm cov ncej. Hauv hnyav-lub luag haujlwm lossis txuas ntxiv- cov tshuab ua haujlwm, lawv ntseeg tau xa cov torque siab thaum tswj kev ua haujlwm siab; yog li ntawd, lawv tau siv dav hauv kev tsim kho tshuab, khoom siv ua liaj ua teb, tshuab conveyor, thiab cov kab ntau lawm. Tsis tas li ntawd, qhov yooj yim ntawm cov saw hlau tso cai rau nws hloov mus rau ntau yam kev teeb tsa, yog li txhim kho cov khoom siv ntau yam.
Thaum lub sijhawm ua haujlwm, cov saw hlau tseem tswj xyuas kev txav ntawm ntau yam khoom, kom ntseeg tau tias ntau lub tshuab ua haujlwm synchronously raws li cov kev sib raug zoo kinematic, uas lav tau zoo thiab txhim khu kev qha tag nrho cov tshuab ua haujlwm. Kev xaiv kom zoo ntawm cov saw hlau tshwj xeeb, qhov tsis sib xws sprocket, thiab cov txheej txheem lubrication tsis yog tsuas yog txhawb nqa kev sib kis tau zoo tab sis kuj txo qis kev hnav thiab lub zog poob, txuas ntxiv cov cuab yeej siv lub neej, txo cov nqi tu, thiab txhim kho kev ua haujlwm tag nrho.