PREVENTIVE MAINTENANCE SCHEDULE
DAILY AnƟ-Lock Brake System…………………………………………….………………………Check for proper operaƟon Lights and Wiring……………………………………..…………………………Check all lights for proper operaƟon All Bolts……………………………………...…………………………………………….……...Visually check for Ɵghtness Air Reservoirs………………………………………………….……………………….……Drain at the end of each shiŌ Tires……………………………………………………………….………………...Check for proper inflaƟon and inflate WEEKLY Wheel Seals…………………………………………….……………………………….Check for oil leakage and oil level Wheel Lugs………………………………………………………………………………………….…Check for proper torque Wiring……………………………………………………………………………….……….….………....Check all connecƟons Suspension Bolts..…………………………………….………..……………………………….…Check for proper torque Piping…………………………………………………………………………………………….…Check for leaks and damage Manhole……………….………………………..…Check clamping device adjustment and gasket for damage Front and Rear Structure Bolts………………..……………...………………………….…Check for proper torque MONTHLY Manhole…………………………………………………..…………………………………..Clean manhole and oil clamps General InspecƟon……………………..…………………………………………………..Perform inspecƟon of trailer Supports………………….…………...………………………Lubricate; check mounƟng bolts for proper torque Axle CamshaŌs……………………………………………...………………………………….Lubricate all grease fiƫngs 90 DAYS Pressure Relief Valve………………….Remove and inspect relief valve for clogs of hardened material. Bench pressure test relief valve with a cerƟfied accurate gauge to ensure proper operaƟon. A test rig is easily constructed with common readily available components. NOTICE MAC Trailer does not design, build, or sell test rigs for pressure relief valves. The follow- ing drawing is merely an example of how a suitable bench test rig can be built with com- mon components.
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