32
Hydraulic
Hoses
Danger:
‐
Hydraulic
hose
lines
may
only
be
replaced
by
qualified
personnel.
Risk
of
skin
and
eye
irritation
and
of
infection
through
contact
with
hydraulic
oil.
Danger
due
to
possible
high
operating
temperatures
of
the
oil.
Risk
of
injury
from
hydraulic
lines
bursting.
Danger
of
high
‐
pressure
injection
due
to
hydraulic
oil
escaping
at
high
pressure.
Weekly
check
hydraulic
hoses
and
fittings.
Replace
if
any
of
the
following
defects
are
found:
‐
Damage
to
the
outer
layer
(chafing
marks,
cuts,
cracks).
‐
Embrittlement
of
the
outer
layer
of
the
lines
(cracking).
‐
Deformations
that
do
not
correspond
to
the
natural
shape
of
the
hose,
both
pressureless
and
pressurised.
(Delamination,
blistering,
pinch
points,
kinks).
‐
Leakage.
‐
Damage
(deformation)
of
the
hose
fitting
(sealing
function
impaired).
‐
Hose
moving
out
of
the
fitting.
‐
Corrosion
of
the
fitting
that
reduces
the
function
and
strength.
See
below
table
for
working
pressures,
burst
presure
and
bend
radius
of
hoses
Size
Working
Pressure
Burst
Pressure
Bend
Radius
Bar
PSI
Bar
PSI
mm
Inches
¼”
225
3265
900
13060
100
3.94
3/8”
180
2610
720
10440
130
5.12
½”
160
2320
640
9280
180
7.09
5/8”
130
1885
520
7540
200
7.87
¾”
105
1525
420
6100
240
9.45
1”
88
1275
352
5100
300
11.81
1
¼”
63
915
252
3660
420
16.54
1
½”
50
725
200
2900
500
19.69
2”
40
580
160
2320
630
24.80
Содержание MKII 600 Series
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