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6 CF65/75/85 series Disc brake construction DIAGNOSTICS 1-3 SYMPTOM: VIBRATIONS DURING BRAKING Possible cause Remedy Incorrect wheel tightening procedure Tighten wheels according to tightening Non-standard wheels fitted Fit only standard wheels Overload due to excessive loading Check vehicle loading condition Incorrect front axle/rear axle brake pressure Check front axle/rear axle setting Wrong brake pad quality Check brake pads Dirt/deposits on brake disc Check/clean brake disc Loose parts Check disc brake construction Wear/damage to hub bearing Check hub bearing play Damage to disc brake Check thickness and condition of brake disc Play in cab suspension Check cab suspension Incorrect vehicle combination Check vehicle combination SYMPTOM: LOCKING OF THE BRAKES Possible cause Remedy Incorrect setting of load sensing valve Check setting of load sensing valve Thermal overload of non-locking axle brake Check non-locking axle brake pads Incorrect system pressure due to incorrect Check pressure regulator setting Defective trailer vehicle brake system Check trailer vehicle brake system Incorrect vehicle combination Check vehicle combination Incorrect ABS operation Check ABS operation Tyres have too little profile Check profile Brake pad stuck in the brake calliper. Incorrect Check the play between brake pads and brake 1 ᓻ 200324 |