d
e
f
g
h
©
Street
Crane
Co
Ltd
Ref:
D3256
rev.
B
Page
49
of
103
5.6
INSPECTION
AND
MAINTENANCE
INTERVALS
In
addition
to
the
pre
‐
use
inspections
listed
above,
a
regular
thorough
inspection
and
maintenance
programme
is
important.
The
following
recommended
intervals
may
vary
depending
on
any
other
statutory
requirements,
environmental
conditions
or
results
of
previous
examinations.
The
competent
person
may
deem
it
necessary
to
reduce
these
recommended
periods
between
examinations.
INSPECTION
AND
MAINTENANCE
INSTRUCTION
Duty
INTERVAL
A
B
C
D
E
WIRE
ROPE
The
rope
is
regarded
as
an
expendable
item
requiring
replacement
when
examination
shows
its
strength
to
have
diminished
to
the
point
where
its
further
use
would
be
unwise.
The
entire
length
of
rope
should
be
inspected
with
particular
attention
being
paid
to
areas
where
deterioration
will
be
at
its
highest,
for
example
where
the
rope
enters
or
leaves
sheaves
and
at
rope
anchor
points.
Assessment
of
Wire
Rope
Condition
The
continued
safe
use
of
wire
ropes
depends
on
assessment
of
the
condition.
Instructions
on
wire
rope
examination
and
discard
can
be
found
in
BS
ISO
4309:2004
and
BS
7121:
Part
2:2003.
M3
*
M4
*
M5
*
M6
*
M7
*
M8
*
WIRE
ROPE
ANCHOR
Rope
terminations
are
as
important
as
the
rope
itself.
Check
for
mechanical
damage
to
clevis
pins,
elongation
of
holes
and
damage
to
rope
thimbles.
Inspect
wedge
and
socket
anchorages
for
rope
damage
as
it
emerges
from
the
socket,
condition
of
the
socket
and
security
and
tightness
of
the
wedge
fitting.
Check
the
security
of
the
rope
anchors
on
the
barrel.
Replace
any
damaged
parts.
M3
*
M4
*
M5
*
M6
*
M7
*
M8
*
ROPE
GUIDE
Examine
for
signs
of
wear
or
damage
particularly
around
the
rope
exit/entry
point.
Check
security
of
guide
bar
and
other
fixings.
Ensure
that
the
guide
bush
travels
freely
and
operates
the
upper
and
lower
hoist
limit
switches
correctly.
M3
*
M4
*
M5
*
M6
*
M7
*
M8
*
BOTTOM
BLOCK
Check
for
cracks,
cold
deformation,
wear
and
freedom
of
rotation
of
the
sheaves
and
hook.
Ensure
hook
safety
catch
operates
correctly.
Check
security
of
the
hook
nut,
and
the
securing
grub
screw.
Replace
any
covers
that
may
be
damaged.
Ensure
the
information
labels
are
still
legible
(See
section
5.12).
M3
*
M4
*
M5
*
M6
*
M7
*
M8
*
HOIST
AND
TRAVEL
BRAKE
Carry
out
a
functional
(load)
check
of
each
of
the
motion
brakes
to
ascertain
that
they
operate
efficiently.
Check
the
output
from
the
brake
rectifier.
Clean
the
brake,
check
the
air
gap
and
adjust
and
renew
worn
parts
where
necessary.
In
particular
check
wear
on
the
rotor
(disc),
and
the
condition
of
the
spline
on
both
rotor
and
hub.
Also
check
the
condition
of
the
hub
key
and
keyway.
M3
*
M4
*
M5
*
M6
*
M7
*
M8
*
HOIST
AND
TRAVEL
GEARBOX
Inspect
around
gearbox
casing,
filler
and
drain
plugs
and
around
oil
seals
for
signs
of
lubrication
seepage.
Clean
ventilation
plug.
Check
security
of
fixings
and
renew
seals
if
necessary.
Apply
gasket
glue
to
hoist
gearbox
seal.
When
gearbox
oil
is
drained
during
oil
replacement,
remove
the
gearbox
inspection
cover
and
visually
check
the
gear
teeth
for
wear.
Check
keys
and
keyways
for
security.
M3
*
M4
*
M5
*
M6
*
M7
*
M8
*
Inspection
and
Maintenance
Intervals:
‐
A
=
Weekly,
B
=
Monthly,
C
=
6
Monthly,
D
=
Annually,
E
=
Every
5
Years
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