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Show HOW TO ADJUST COMMUTER BRUSHES I When t';e roicnmt'T hrn--l.es of the generator I ico!)" si i'-ih 1 1 v u im. Ft) tl m t Ihev cause areini;. Hiev should be filed (o irsike a ;'i'fd (onlaet witii the connnuta- 1'ir. A s'n;ill Tiiaenetu file is bet for i this put;iosc. if (he commutator itpe'f j proves to be dirtv. a picci- (hf fine sand- ' paper held ni.'ainst it while the generator j ariniit'irp is i evol ,'inir will c!c;ui it off. A L-niistuke L-niistuke frequent !y made is in adjusting the brushes so that th- uprintrs n re st i ciched ton much, ca usi nir t he brush en to bent nipiiMr bv reason n," the excesivf fi ictlon. This causes rapid wear. Tb brushes sb'-uld he set so ;h just to touch the com m uta tor lb: lit ly a nd et not so much as to give poor contact. The , curvature of the brush should he the same as that of the comujututur |