Yanmar 3JH5E Operation Manual

Also see for 3JH5E: Operation manual Operation manual Operation manual Operation manual

Contents

PERIODIC MAINTENANCEJH Series Operation Manual 6512/05Inspection and MaintenanceSee Inspection and Maintenance of EPA Emission-Related Parts on page 69 for the EPAemission-related parts. Inspection and maintenance procedures not shown in Inspectionand Maintenance of EPA Emission-Related Parts on page 69 are covered in PeriodicMaintenance Schedule on page 66 .This maintenance must be performed to keep the emission values of your engine in thestandard values during the warranty period. The warranty period is determined by the ageof the engine or the number of hours of operation.Installation of Exhaust Sampling PortAll engines subject to emission standards shall be equipped with a connection in theengine exhaust system that is located downstream of the engine, and before any point atwhich the exhaust contacts water (or any other cooling / scrubbing medium), for thetemporary attachment of gaseous and / or particulate emissions sampling equipment. Thisconnection shall be internally threaded with standard pipe threads of a size not larger than12.7 mm (0.5 in.), and shall be closed by a pipe plug when not in use. Equivalentconnections are allowed.The instructions for the proper installation and location of the required sample port, inaddition to those specified above in the quoted federal regulation, are as follows:1. The connection should be located as far downstream as reasonably practicable fromany sharp bend (of 30 degrees or more) in the exhaust pipe to help ensure that awell-mixed exhaust flow sample may be taken;2. The requirement that the connection be located before any point at which the exhaustcontacts water (or any other cooling / scrubbing medium) does not include contact withwater used to cool exhaust manifolds, unless the water is allowed to come into directcontact with the exhaust gases;3. To allow ready access to the sample port, the connection should be located, if possiblegiven the constraints of vessel design, approximately 0.6 to 1.8 m (2 to 6 ft) above adeck or walkway;4. To facilitate insertion and withdrawal of an exhaust sample probe, there should be noobstructions for at least one and one-half exhaust pipe / stack diameters perpendicular,i.e., 90 degrees, from the sample port; and5. If a threaded connection is used, both the internal and external threads should becoated with a high-temperature, anti-seize compound before the initial installation andat every subsequent re-installation to facilitate removal of the connection for testing.