Under section 12 of the Act the sanction of the Director to all repairs proposed for boilers must be obtained before hand.
A few water tubes or smoke tubes, however, may in an emergency be renewed pending the sanction of the Director but all such cases must be reported immediately to the Director who may, if the deems fit, notify his sanction to the owner without verification of the renewals by the Deputy Director.
Generally in repairing boilers the object to be obtained is to make up for damage or wastage by suitable compensation, either by renewal or repair of the part affected. Covering patches applied with the object of hiding defects are a source of danger and must not be passed.
Welding by electric and oxy-acetylene processes may be employed in the repairs of boilers, but, as the efficiency of the welding depends largely on the skill and care of the operator each case will have to be decided on its merits.
Proper attention must be paid to the annealing of welded parts. The Deputy Director should, wherever possible, be present during some part at least, of the welding operations.
The Maharashtra Boiler Rules, 1962 14 Extensive repairs such as renewal of furnaces, and plates, parts of shell fireboxes, girders, etc., should be supervised, so far as other duties permit, by the Deputy Director and at such time when fire-boxes and smoke tubes of locomotive-type boilers are withdrawn, advantage of the opportunity should be taken to inspect the internal parts otherwise inaccessible to close inspection.
Repairs to boilers are prescribed in Chapter IX, Regulation 392 of the Regulation.