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拖车制动不能自动回位,轮胎与地面滑行摩擦,制动鼓与蹄片接触摩擦,从而缩短其使用寿命,功率降低,油耗增加。夏日蹄鼓摩擦会使轮胎爆裂,遇有这种故障必须查清原因。 拖车制动不能回位的原因,以前曾刊表为凸轮轴两支承孔不同心造成的,最近发现拖车制动不能回位的原因是由于制动蹄支承孔与偏心轴锈蚀(不是锈死)使制动蹄卡滞,其阻力
Trailer braking can not be automatically returned to the tire sliding friction with the ground, brake drum and shoe contact friction, thereby shortening its service life, lower power, fuel consumption increased. Summer hoof drum friction will make the tire burst, in case of such failure must find out the reason. Trailer brake can not be replaced because of the previously published camshaft bearing holes caused by two different heart, the trailer was recently found that the brake can not be returned due to brake shoes bearing holes and eccentric shaft corrosion (not rust) Brake shoes stuck, the resistance