7. Commercial heavy truck exhaust system plumbing is designed in segments to provide ease of maintenance and lower
segment replacement costs for the user. Two types of connecter clamps are commercially available; the V-bolt clamp,
such as furnished on the CCE dump truck, and, optionally, a double bolted sleeve clamp, spanning either side of the pipe
joint. Both the V-bolt and the sleeve clamps require periodic tightening of nuts to maintain the connections gas light. At
each connection, both connecting pipe sections must be round, without dents, dings, and other damage that may have
occurred in shipping and handling prior to installation. Any damage in the coupling area will result in leakage and require
rework to correct. Overtightening and possible stripping of the clamp's threads will not correct poorly fitted pipes.