Ke ntho e tloaelehileng ho utloa molumo ha o kenya cylinder ea khase.
Khase, hangata e maemong a kgase, e hatelloa ka har'a silindara hore e be metsi. Ho bula valve ea cylinder ho etsa hore khase ena e metsi e khutlele mofuteng oa eona oa khase ka valve e fokotsang khatello., mokgoa o bakang lerata ka baka la phetoho ya kgatello.
Ho phaella moo, joalo ka ha khase e tsoa ka ntle, e baka likhohlano le liphaephe tsa khase, ho baka lerata le llang. Molumo ona o bonahala ha o bula moqomo oa khase 'me oa senyeha hang ha moqomo o koetsoe..