SAFARI

22 BRAKES BRAKEMAINTENANCE To maintain the efficiency of the brake system, preventive maintenance is essential and the following recommendations should be observed at the intervals stated. BRAKEADJUSTMENT As it is an auto adjust brakes, brake adjustment is not required. 1) Every 9000 kms check the lining for wear through the inspection hole provided in the back plate, removing the grommet (35). The linings should not be allowed to wear down to rivet heads. 2) Every 18,000 kms clean the backplate and lubricate the tips of the shoe platforms with graphite grease and the moving parts of the adjuster with mineral grease. Keep the grease away from the shoe linings and all hydraulic parts. 3) The wheel cylinder should be overhauled once in 36,000 kms or 18 months whichever is earlier. MAJOROVERHAUL It is essential that the shoe linings are inspected at regular intervals to prevent the drums being permanently damaged and subsequentlymaking drum removal extremely difficult. If the drums are allowed to become scored or grooved, the problem of drum removal can usually be overcome by increasing the clearance between the shoe linings and drum as follows : Caution : As it is an auto brake, press the hand brake lever with a screw driver inserted through the hole from rear side of the backplate. 1. Choke the front wheels, release the hand brake and jack up the rear wheels. Support the rear axle with horse stands. Fig. 17 2. Slacken off the hand brake cable. 3. Remove the wheel Fig. 16 and insert a screw driver through the hole in the back plate (from rear side of the backplate Fig. 17) and press against the hand brake lever (13). A 'click' sound will be heard as the lever moves down. This movement compresses the pistons in the wheel cylinder and thereby increases the clearance between the brake shoes and the drum. Now take out the drum Fig. 18. Fig.16 Fig.17 Fig.18