Document ID: chunk:federal_register_of_legislation:F2018L01173:body:0:p83
Version: federal_register_of_legislation:F2018L01173
Segment Type: other
Provision Reference: 
Character Range: 215104–217857

slings should be examined for broken or ragged strands, and padded if necessary to avoid damage on sharp edges.
When working alone, a person should arrange to communicate at regular and frequent intervals with other persons in the machinery spaces or on the bridge.

18.1              Boilers, oil heaters, unfired pressure vessels and steampipes
No person should open or perform any operation on a boiler, unfired pressure vessel or steam pipe that could result in the release of steam, air, or oil except:
       under the supervision of an engineer officer; and
       with the knowledge and approval of the chief engineer; and
       where adequate arrangements have been made to prevent any back flow of steam or working fluid by blanking off, or locking shut, any lines or valves that might allow such back flow of steam, hot water or exhaust gases to enter the boilers, combustion chamber or pressure vessel.
All boilers, and unfired pressure vessels and steam piping should be inspected internally and externally at regular intervals by a competent person as required under Marine Order 31 (Vessel Surveys and Certification) and classification society rules.
Operating instructions should be clearly displayed at each boiler.
No boiler or unfired pressure vessel should be operated or kept at working pressure if unsafe for use or if not provided with the properly maintained fittings necessary for safe operation.
A boiler or an unfired pressure vessel is enclosed and potentially a dangerous space. Therefore, confined space entry procedures must be followed when performing any operations.
Before any boiler, or unfired pressure vessel is opened for inspection, any pressure therein should be released, the contents cooled down to atmospheric temperature and the system effectively drained off.
Before entry is permitted to a boiler that is part of a range of two or more boilers, the engineer officer in charge should ensure that either:
       all inlets through which steam or water might enter the boiler from any other part of the range have been disconnected, drained and left open to atmosphere; or
       where that is not practicable, all valves or cocks, including blowdown valves controlling entry of steam or water, have been closed and securely locked, and notices posted to prevent them being opened again until authorisation is given.
After emptying, check that the vacuum is broken before access doors are removed. Even if an air cock has been opened to break the vacuum, it is good practice to loosen the access door nuts and break the joint before removing the dogs and knocking in the doors. The top access door should be knocked in first with the dogs slacked back but not removed. The access door should be held by a