349-Lifting and Hoisting Operations / 748
L
iftin
g
and
H
oistin
g Op
erations
BOS-PRD-07.900604
4
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4
.
8 E
n
g
ine roo
m
– o
v
er
h
ead trolle
y b
ea
m
s
x
When marked as having a capacity of more than 1 ton SWL than such equipment is regarded as
lifting equipment and
shall
be surveyed every 5 year during dry-dock;
x
When being less than 1 tonne SWL than it is strongly advised to have a
Design Approval Document
(DAD) in place.
4
.
4
.
9 L
as
h
in
g
eq
u
i
p
m
ent
The following equipment
shall
be subject to maintenance and inspection:
x
Steel cables and wires of all types;
x
Shackles, links;
x
Straps;
x
Slings of all types;
x
Turnbuckles, load binders;
x
Hooks;
x
Pulleys, snatch blocks;
x
Chains.
All cargo and lashing equipment is to be inspected by an approved inspection organisation at a defined
period according to the manufacturer’s instructions or as indicated below.
Colour coding
shall
be used as applicable (use the same color code as per chap. 4.3.6).
Special attention
shall
be given to the identification of the following possible defects:
x
Bending, twisting or cracking of hooks or shackles;
x
Distortion and excessive wear of chains;
x
Deterioration of slings;
x
Broken or defective safety catches;
x
Any other obvious signs of damage.
The following types of damages are examples for when lifting equipment
shall
be destroyed:
x
Any damages to the material;
x
Any cutting or crushing damage;
x
Welding spurt;
x
Any damage to the lifting eyes;
x
General wear and tear.
4
.
4
.1
0
Wires and
c
a
b
les
Inspection and maintenance of cables used for towing or anchor handling are described in the
Anchor
Handling and Towing Operations
Cables
shall
undergo periodic visual checks and
shall
be inspected annually It is important to recognise
signs of internal and external damage including wire or stand breakage and to determine the metal section
surface lost due to corrosion in comparison with the original.
This information may be used to evaluate the remaining service life of the cable.
Cable replacement is required in the following cases:
x
Excessive distortion - crushing and kinking. Excessive deformation can seriously alter cable strength
or distribution of dynamic forces;
x
Socket damage - split, cracked, or deformed sockets
shall
be removed and replaced;
x
Exposure of the cable core (bird-caging) - If the distance between the socket and the damaged
section of cable is less than the length of cable that stays on the drum, a possible solution consists in
inversing the cable;
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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