TM10-3930-660-20 12-6. SERVICE BRAKE SHOES -   INSPECT/REPLACE   (Cont’d) c.   Check shoes (1) for oil or grease. Clean shoes (1) with denatured alcohol or by burnishing. Replace shoes (1) if grease or oil cannot be  removed. Cracks on surface of shoes (1) are normal when brakes are used under high temperature conditions. d. Check shoes (1) for cracks. Replace shoes (1) if necessary. INSTALLATION CAUTION Always replace both shoes (1) as a set. If only one shoe is replaced, possible disc damage can occur. 1. 2. 3. 4. INSTALL  SHOES  (1). a. b. c. d. Position shoes (1) in brake housing  (4). Position brackets (3) on brake housing  (4). Apply Loctite 271 to threads of four capscrews (2) and secure brackets (3) with capscrews (2). Torque Ensure freely BLEED  AIR 12-5. APPLY AND To ENSURE capscrews (2) to 170 lb. ft. that shoes (1) move in housing (4). FROM BRAKE SYSTEM, PARA. RELEASE BRAKE THREE TIMES THAT BRAKE SYSTEM OPERATES CORRECTLY. CHECK FOR FLUID LEAKS. ENSURE THAT SHOES (1) MOVE FREELY IN HOUSING. INSTALL WHEEL ASSEMBLY, PARA. 13-3. 12-14