Kawasaki S3 (1974-1976) [83/129] Caliper parts wear

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Caliper parts wear Inspect the pads for wear If the surface either pad is worn down through the red l replace both pads as a set If any grease or spills on the pads wash it off with trichlorcthyl or gasoline If the oil cannot be thoroug cleaned off replace the pads The oil seal around the piston maintains proper pad disc clearance If this seal is bad pad will wear more than the other pad wear increase and constant pad dragon the disc raise brake and brake fluid temperature Level Uno Master cylinder parts wear When master cylinder parts are worn or dam aged proper brake fluid pressure cannot be obtained in the lines and the brake will not hold If the small relief port becomes plugged especially with swollen or damaged primary cup the brake pads will drag on the disc i Check that there are no scratches rust or pitting on the inside of the master cylinder and that it is not worn to outside the service limit ii Check the piston for these same faults iii Inspect die primary and secondary cups If a cup is worn damaged softened rotted or swollen replace it When inserting the cup into the cylinder see that it is slightly larger than the cylinder standard values given in the table If oil leakage is noted at the brake lever the cups should be replaced The secondary cup is part of die piston assembly so replace the piston if this cup is bad iv Check that the spring is not damaged and is not shorter than the service limit v Replace the rubber dust seal if it is damaged Replace the cylinder and piston if they worn out of tolerance badly scored or rusty Check the oil and dust seals and the O ri replacing any that are cracked worn swollen otherwise damaged Replace he oil seal under any of the follo conditions a oil leakage around pad A b br overheat c there is a large difference in A an pad wear d the seal is stuck to the piston replace the seal every other time the pads changed Table 38 Caliper Parts Service Limit Cylinder inside diameter Standard___________________ 1 5031 13039 m 38 180 38 200 mm S3 S3 A Piston outside diameter_____ 1 5006 13019 in 38 180 38 200 mm 13002 in 38 105 mm KH400 A3 Cylinder inside diameter 1 690 in 42 92 mm KH250 B1 Piston outside diameter______ 1 6870 1 6890 in 42 850 42 900 mm _________ 1 6846 1 6858 in 42 788 42 820 mm Model Part S2A 1 5045 in 38 215 mm _________ 1 683 in 42 75 mm Tabic 39 Master Cylinder Parts Service Limit Piston outside diameter Standard 5512 5529 in 14 000 14 043 mm 5495 5506 in 13 957 13 984 mm Primary secondary cup diameter 5768 5965 in 14 650 15 150 mm 5709 in 14 500 mm 2 169 in 1 890 in Measurement__________________ Cylinder inside diameter 5543 in 14 080 mm 5472 in 13 900 mm

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