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BR-3 Troubleshooting (continued) Braking System Notice and Troubleshooting Trouble Causes Inspection items There is clatter noise when using the brake (Drum-type brake) The brake shoe is seized on the flange of rear baffle; The flange of rear baffle is worn; The pressure spring of brake shoe is loose or missing; The fixed bolts of brake bottom plate is loose; (disc type brake) The brake pad support plate is loose or missing The mounting bolts are loose; Add lubricant Change the lubricating flange Change Tightening it Change Tightening it There is hoarse noise or quack- quack when using the brake The brake shoe or brake pad is worn; The brake caliper, the wheel or the rotator interferes each other. There is friction between the dust cover and brake disc, the brake bottom plate and the brake drum; The other braking part has trouble There is friction between the tire and body Change the part, and re-process precisely the brake drum or rotator if the abrasion is serious; Make change according to real situation; repair or change Make repairing according to real situation; Change Check or maintain the part T h e r e i s s u c h n o i s e a s continuous screaming, quack- quack, oscillating sound, etc. Notice: the braking materials may generate the natural noise and heat during friction, and thus emit the energy. Therefore, i t i s n o r m a l t o h a v e t h e s c r e a m i n g n o i s e . T h e s e phenomena will be more serious under the condition of frigidity, torridity, and over humidity, s n o w i n g a n d m u d . t h e screaming noise occurring occasionally will not lead the fatal brake trouble nor reduce the effective properties of the brake. The brake drum, brake liner, liner or brake pad is worn or scraped The brake liner or brake pad is dirty or with oil stain or polished. The brake liner or brake pad is improperly used. The brake pedal or vacuum booster drag rod is unsuitably adjusted. (disc type brake) The brake pad silent pad is loss or damaged; The brake pad is worn to the degree that the abrasion- indicating lamp of brake pad has friction with the rotator. There is burr or rust on the brake caliper. (Drum type brake) The pressure spring of brake shoe is soft in rigidity, or is damaged or unsuitable. The pressure spring pin or spring of brake shoe is loose or damaged; There is crack on the brake bottom plate flange Check, repair or change Clean or change Check or change Check for adjustment Change Change Clean or polish the burr Check, repair or change Check, repair or change Check, repair or change |