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CAUTION: Use care when installing the caliper onto (3) Install the disc brake caliper over the brake shoes on the brake caliper adapter. Make sure the (4) Align the caliper guide pin bolt holes with the guide pins. Install the caliper guide pin bolts and (5) Install the tire and wheel assembly. Tighten the wheel mounting nuts to a torque of 135 N·m (100 (6) Lower the vehicle. moving the vehicle to set the shoes to the brake DRUM DIAGNOSIS AND TESTING - BRAKE DRUM With the drum off the vehicle, measure the drum for diameter variation (oval shape). The diameter Measure brake drum runout. Brake drum runout should be checked with the drum mounted on a If either of these measurements are not within specification, reface or replace the drum. (Refer to 5 - - STANDARD PROCEDURE). Always replace the drum if machining will cause the diameter to exceed drum maximum diameter. All BRAKE DRUM LIMITS SALES CODE DIAMETER VARIATION RUNOUT RUNOUT (IN 360°) MAXIMUM DIAMETER BRB/ BRK 0.080 mm 0.003 in. 0.045 mm in 60° 0.002 in. in 60° 0.130 mm 0.005 in. 230.60 mm 9.079 in. Note: Vehicles without ABS are equipped with BRB drum STANDARD PROCEDURE - BRAKE DRUM If a brake drum is deeply scored or warped, it can be machined on a brake lathe equipped to machine Measure the brake drum diameter before machin- ing. If machining the drum will cause the drum to CAUTION: Do not machine the brake drum if it will All brake drums are marked with the maximum allowable brake drum diameter.All vehicles have it When machining, make sure the feed rate for the final cut is set to deliver a fine finish. A fine finish REMOVAL NOTE: Before proceeding, (Refer to 5 - BRAKES - Fig. 63 Drum Maximum Diameter Identification (Inside Drum) 1 - MAXIMUM DIAMETER IDENTIFICATION MARKING 5 - 36 BRAKES - BASE PT DISC BRAKE CALIPER GUIDE PINS (Continued) |