ENGINE Exhaust System Engine Mounting The exhaust system is part of the noise and emission control system. Periodically check the exhaust for wear, exhaust leaks, and loose or missing parts. For details see Noise Emission Control on page 5-123. Periodic Inspection: Inspect engine mounts every 60,000 miles (96,560 km). Check for the following: Do not re-torque or reuse existing flange head bolts. These bolts are factory set to the specified torque. If bolts are loose or damaged, they must be replaced with the new bolts. Failure to comply may result in equipment or property damage. CAUTION Inspect both mount and leg fasteners. Check for loose or broken bolts. Replace as necessary.
Please refer to the Engine Operator's Manual for more details on how to maintain the emission's components in the exhaust system. Check mount and leg for fractures, breaks or deformation. Replace as necessary. Please refer to the aftertreatment manual for emissions related components such as the DEF system and DPF. Check for complete insertion of motor mount. Replace as necessary. 5 New leg to mount flange head bolts should be torqued to 210-230 Lb-Ft (284-311 Nm). 5-110 Y53-6077-1B1 (03/17)