Class Surveys Based on Preventative Maintenance Techniques

This chapter sets out the framework of procedures and conditions under which a properly conducted preventative maintenance plan may be credited as satisfying the Class requirements pertaining to the special continuous survey of machinery, or specific Class equivalent. No preventative maintenance plan may supersede the judgment of a Class approved and appointed Surveyor, nor does the existence of the preventative maintenance plan waive the Class approved Surveyor from attending inspections for damage, representative overhaul of main engines, generator engines, steering gear, general insulation condition and resistance tests, electrical devices functional tests, reduction gear teeth examinations, hydrostatic tests of pressure vessels, tests and verification of safety devices such as relief valves, overspeed trips, emergency shut-offs, low-oil pressure trips, etc. Indeed, the preventative maintenance plan is designed to supplement and support Class approved Surveyor inspections as required by Class for the recognition of appropriately installed and maintained onboard systems.