Li-injectors tse ntle tsa ho falla li emela likarolo tsa bohlokoa tsa kelello ho hanyetsa - mofuta oa litlolo tsa librication. Lisebelisoa tsena tse betereloang li etselitsoe ho fana ka oli e nepahetseng, tse reriloeng esale pele ho netefatsa tšireletso ea lisebelisoa ha u ntse u felisoa litšila tse senyang - lubrication. Letoto la RH le sebetsa ka mokhoa o motle oa ho fallela, moo nako le nako le sekhahla se fumanehang ho lintlha tsa mabone, moo tsamaiso e hatisoang le e hatellang oli ha e sithabetsoa.
