NOISE EMISSION CONTROL Joints and Clamps Selective Catalyst Reduction (SCR) Piping Check for leaks, and tighten as necessary. Check for deterioration or dents in pipes and clamps which could allow exhaust to escape. Check SCR canister filter, clamps and mounting brackets. Tighten if necessary. Inspect SCR canister for signs of rust or corrosion. Check exhaust piping for rust, corrosion, or damage. Replace deteriorated piping before holes appear. If piping is perforated at any point, temporary patching or lagging is acceptable until you can have permanent repairs made. On turbocharged engines, check joints at flanges and mounting brackets for tightness.
Replace any serviceable joints, flexible pipes and gaskets at the service intervals. 5 5-126 Y53-6077-1B1 (03/17)