Maintenance Manual
47
PEFS F3 Maintenance Manual, Version 1.2, Feb 2018
© Copyright 2017 Chubb Fire & Security Pty Ltd
Name
Definitions and illustrations
(with limits)
Limits and treatment
General
C23
C30
C45
C65
C106
Fire and
heat
damage
Any damage resulting from a fire or
excessive or unusual application of heat.
Condemn where
—
(a) warping or distortion is evident;
(b) bulging exceeds limits specified for a bulge; or
(c) there is evidence of damage from excessive heat.
Where a steel cylinder has not suffered damage to the extent specified in (a), (b), or (c) above, but has burned areas
exceeding 6000 mm
2
, it shall either be re-heat treated and tested where appropriate, in accordance with the original
manufacturing specification, and hydraulically pressure tested in accordance with AS2337.1 Section 7, or shall be condemned.
Where the burned areas of a steel cylinder do not exceed 6000 mm
2
, the cylinders may be returned to service.
Cylinder
Neck
Cylinder neck inspection includes both
external and internal inspections of the
neck area.
The cylinder to valve thread of the
cylinder shall be examined to ensure that
it is
—
(a) clean and of full form;
(b) free of significant damage;
(c) free of burrs;
(d) free of cracks; and
(e) free of other significant imperfections
that would affect the integrity of the
connection.
Condemn where the neck thread shows evidence of cracks, damage or excessive wear except where gauging with a thread
gauge complying with AS2473 shows the thread to be satisfactory.