INSPECTION AND REPAIR OF PARKING BRAKE COMPONENTS 1. INSPECT DISASSEMBLED PARTS Inspect the disassembled parts for wear, rust or damage. 2. MEASURE BRAKE SHOE LINING THICKNESS Standard thickness: 2.5 mm (0.098 in.) Minimum thickness: 1.0 mm (0.039 in.) If the shoe lining is less than minimum or shows signs of uneven wear, replace the parking brake shoes. 3. MEASURE BRAKE DISC INSIDE DIAMETER Standard inside diameter: 190 mm (7.48 in.) Maximum inside diameter: 191 mm (7.52 in.) If the disc is scored or worn, the brake disc may be lathed to the maximum inside diameter. 4. INSPECT PARKING BRAKE LINING AND DISC FOR PROPER CONTACT If the contact between the brake lining and disc is improper, repair the lining with a brake shoe grinder, or replace the brake shoe assembly. 5. MEASURE CLEARANCE BETWEEN PARKING BRAKE SHOE AND LEVER Using a feeler gauge, measure the clearance. Standard clearance: Less than 0.35 mm (0.0138 in.) If the clearance is not within specification, replace the shim with one of the correct size. Thickness mm (in.) 0.3 (0.012) 0.6 (0.024) 0.9 (0.035)