Document gaQqDy7Dw4VBarV2g0x04XL1L

JULY 17, 1970 No. Q65 FOR BRANCHES. DISTRIBUTORS AND CUSTOMERS. under brakes INSTRUCTIONS AND SERVICE DATA (All Made Chassis Equipped with Bendix-Westinghouse DD-3 Brake Actuators) PURPOSE To inform field of instructions and service data applicable to DD-3 brake actuators. INFORMATION Bendix-Westinghouse Instruct ion and Service Data Bulletin SD-38 provides detailed information on maintaining, servicingandrepiacing DD-3 actuators. In addition to established general preventive maintenance procedures it is recommended that yearly or after 50,000 miles, depending on type of operation, the DD-3 actua tors be completely disassembled to inspect condition of internal parts and replace diaphragms and other rubber parts/or parts if worn or deteriorated. RECOMMENDATION File the attached Bendix-Westinghouse Instruction and Ser vice Data SD-38, following this bulletin. Inform all affected personnel of its con tent. 3 z a Service Operations, Allentown, Pa. U.S.A.