BRAKES 22 11. MAINTENANCE, ADJUSTMENTS & TEST A. FRONT BRAKE MAINTENANCE To maintain the efficiency of brakes, preventive maintenance is essential. Check the pads for wear at specified interval given in service schedule. Fit new pads when lining and metal pad thickness measured together is less than 6 mm or less. Caliper should be overhauled at specified interval. Front pads to be replaced as axle sets only. Do not contaminate the pads with oil or grease (Front brake complete assembly) INSPECTION OF PADS: Measure pad thickness (with lining) with a Vernier and if the thickness is found less than 6mm anywhere in the pad, then it should be replaced them. Do not polish pads with sand paper or emery paper. If the pads are polished with emery or sandpaper, hard particles of sandpaper will be deposited in pad and may damage disc. Front Caliper 1. Whenever pads require correction, replace it with new one. 2. Always use genuine grade of pad. Do not contaminate the pad surface with grease or oil. 3. Thoroughly clean the disc. If it is scored badly, replacement of new pads alone do not give optimum performance and service life. Hence follow instructions as given in recondition the disc. 4. If there is no visible deterioration in piston boot guide (10) and guide rod (8), new pads can be fitted. 5. Check for the condition of the spring pad (12) and if found without any damage the same clips can be fitted after cleaning. (It is recommended to replace the Anti-rattle clips at every Pad replacement. Lubricate the Sliding pins with the Approved grade of Sliding pin Grease. The Sliding pins to be lubricated at specified interval.
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