350-Lifting and Hoisting Operations / 748
L
iftin
g
and
H
oistin
g Op
erations
BOS-PRD-07.900604
x
Strand and wire breakage - any cable presenting a broken wire or a number of visible broken strands
resulting in a loss of 20% or more of the total of strands
shall
be removed from service and
discarded.
Cargo gear wires
shall
be replaced after 5 years of use or as revealed upon routine inspections.
In the event rust is observed on any cargo gear wire, the wire
shall
be discarded/rejected for use. Other
discarding criteria, like broken wire strands, wear and tear, etc. are given in the
ISO 4309
.
If inspections necessitate replacement of the wire:
x
The
Master
shall
notify and consult with the assigned
Sup
erintendent
;
x
The
Sup
erintendent
shall
authorise replacement order of cargo gear wires;
x
The
Sup
erintendent
in consultation with the
Op
erations Mana
g
er
shall
decide on date of
replacement;
x
Spare wires onboard
shall
be used as replacement for rejected wires;
x
Spare wires
shall
be thoroughly visually inspected prior/during reefing. Replacement for spare wire
shall
be ordered through the purchasing department.
4
.
4
.11 Modifi
c
ation of wires
All cargo gear wire replacements and Certificate Modifications
shall
be recorded. See Chapter 4.4.
4
.
4
.1
2
(
N
on) destr
uc
ti
v
e testin
g
of wires
x
During dry-docking (or in water survey) of the vessel, average every 2.5 years, with max 3 years
interval, cargo gear wires
shall
be examined by a external specialist. This includes inspection of the
detachable end (wedge socket);
x
During the same period about 4 meters of wire
shall
cut off in order to be destructive tested. If
destructive test results are indicating that the actual break load is less than the minimum breaking
load, the
Fleet Te
c
hni
c
al Mana
g
er
shall
to be advised in order to take appropriate action.
4
.
4
.1
3 Sp
e
c
ial/additional testin
g
of wires
Special cargo gear wires inspection testing
shall
be carried out as follows:
x
Post accident;
x
Upon re-assembling (re-reeving);
x
If the crane has been out of operation for three months.
This inspection is similar to the 3 monthly inspection as mentioned under this procedure.
4
.
4
.1
4 Sp
are wires
x
One spare wire with maximum length for each diameter in use
shall
be standard stock onboard;
x
All spare wires
shall
be destructive tested by means of cutting 4 meters in length;
x
Spare wires
shall
be stored below deck in a dry place;
x
Wires
shall
never to be in contact with steel decks, connecting socket. Wire-ends to be on top of
placed reel or free from deck/bulkhead;
x
Reels of new delivered spare wires
shall
be clearly marked with certificate number, date and place of
delivery;
x
The total lifetime of a wire is 11 years, which means maximum 6-year storage and 5-year lifetime.
Version 04. Original date: 28/06/2012. Version date: 31/12/2014. Valid version only on QMS site. Uncontrolled document when printed.
Procedure prepared by: BOS Operations Department Project Manager. Approved by: BOS Head of Operations. Validated by: BOS Quality Representative.
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