Parker Karrykrimp 2 - Safety Guide for Hose and Fitting Selection; Maintenance and Replacement of Hose Assemblies; MSDS Information

Bulletin 4480-T7-U
S
K
arr
y
krimp
2
P
arker Hanni
fi
n
C
orporation
Hose
Pr
oduc
t
s
Divi
s
i
o
n
W
ickli
ff
e,
OH
17
• Damaged, cracked, cut or abraded cover (any reinforcement
e
xposed
)
;
• Hard
,
sti
ff,
heat cracked
,
or charred Hose
;
• Cracked, damaged, or badly corroded Fittings;
•
L
ea
k
s at
Fi
tt
i
n
g
or
i
n
H
ose;
• Kinked
,
crushed
,
fl
attened or twisted Hose
;
and
• Blistered, so
f
t, degraded, or loose cover
.
4.3 Visual Inspection All
O
ther: The followin
g
items must be ti
g
htened,
r
epaired, corrected or replaced as required:
• Leaking port conditions;
•
E
xcess
di
rt
b
u
ild
u
p
;
• Worn clamps,
g
uards or shields; an
d
•
S
ystem
fl
uid level,
fl
uid type, and any air entrapment.
4.4 Functional Test: Operate the s
y
stem at maximum operatin
g
pressure
and check
f
or possible mal
f
unctions and leaks. Personnel must avoid potential
hazardous areas while testin
g
and usin
g
the s
y
stem. See section 2.2.
4
.5
R
e
pl
acement
I
nterva
l
s:
H
ose assem
bli
es an
d
e
l
astomer
i
c sea
l
s use
d
o
n Hose Fittin
g
s and adapters will eventuall
y
a
g
e, harden, wear and deteriorate
u
nder thermal c
y
clin
g
and compression set. Hose Assemblies and elastomeric
seals should be ins
p
ected and re
p
laced at s
p
ecifi c re
p
lacement intervals, based on
previous service li
f
e,
g
overnment or industr
y
recommendations, or when
f
ailures
c
ould result in unacceptable downtime, dama
g
e, or in
j
ur
y
risk.
S
ee section 1.2.
4.
6
Hose Inspection and Failure: H
y
draulic power is accomplished b
y
u
tilizin
g
hi
g
h-pressure fl uids to transfer ener
gy
and do work. Hoses, Fittin
g
s, and
H
ose Assemblies all contribute to this b
y
transmittin
g
fl uids at hi
g
h pressures.
F
luids under pressure can be dan
g
erous and potentiall
y
lethal and, there
f
ore,
e
xtreme caution must be exercised when workin
g
with fl uids under pressure and
handlin
g
the Hoses transportin
g
the fl uids. From time to time, Hose Assemblies
will
f
ail i
f
the
y
are not replaced at proper time intervals. Usuall
y
these
f
ailures are
the result of some form of misapplication, abuse, wear, or failure to perform proper
maintenance. When Hoses fail,
g
enerall
y
the hi
g
h-pressure fl uids inside escape
in a stream which ma
y
or ma
y
not be visible to the user. Under no circumstances
should the user attempt to locate the leak b
y
“feelin
g
” with their hands or an
y
other
part of their bod
y
. Hi
g
h-pressure fl uids can and will penetrate the skin and cause
severe tissue dama
g
e and possibl
y
loss o
f
limb. Even seemin
g
l
y
minor h
y
draulic
fl
uid in
j
ection in
j
uries must be treated immediatel
y
b
y
a ph
y
sician with knowled
g
e of
the tissue dama
g
in
g
properties of h
y
draulic fl uid.
I
f
a Hose
f
ailure occurs, immediatel
y
shut down the equipment and leave the area
u
ntil pressure has been completel
y
released from the Hose Assembl
y
. Simpl
y
s
h
utt
i
n
g
d
own t
h
e
hyd
rau
li
c pump ma
y
or ma
y
not e
li
m
i
nate t
h
e pressure
i
n t
h
e
H
ose Assembl
y
. Man
y
times check valves, etc., are emplo
y
ed in a s
y
stem and can
c
ause pressure to remain in a Hose Assembl
y
even when pumps or equipment
are not operat
i
n
g
.
Ti
n
y
h
o
l
es
i
n t
h
e
H
ose, common
ly
k
nown as p
i
n
h
o
l
es, can e
j
ect
small, dan
g
erousl
y
power
f
ul but hard to see streams o
f
h
y
draulic
fl
uid. It ma
y
take
several minutes or even hours for the pressure to be relieved so that the Hose
A
ssembl
y
ma
y
be examined safel
y
.
O
nce the pressure has been reduced to zero, the Hose Assembl
y
ma
y
be taken o
ff
the equipment and examined. It must alwa
y
s be replaced if a failure has occurred.
Never attempt to patch or repair a Hose Assembl
y
that has failed. Consult the
nearest Parker distributor or the appropriate Parker division
f
or Hose Assembl
y
r
eplacement information.
Never touch or examine a failed Hose Assembl
y
unless it is obvious that the Hose
no lon
g
er contains
fl
uid under pressure. The hi
g
h-pressure
fl
uid is extremel
y
dan
g
erous and can cause serious and potentiall
y
fatal in
j
ur
y
.
4
.7
El
astomer
i
c sea
l
s:
El
astomer
i
c sea
l
s w
ill
eventua
lly
a
g
e,
h
ar
d
en, wear
and deteriorate under thermal c
y
clin
g
and compression set. Elastomeric seals
should be inspected and replaced.
4.8 Refri
g
erant
g
ases: Special care should be taken when workin
g
with
r
e
f
ri
g
eration s
y
stems.
S
udden escape o
f
re
f
ri
g
erant
g
ases can cause blindness i
f
the escapin
g
g
ases contact the e
y
e and can cause freezin
g
or other severe in
j
uries
if it contacts an
y
other portion of the bod
y.
4.9
C
ompressed natural
g
as
(C
N
G)
: Parker
C
N
G
Hose Assemblies should
be tested after installation and before use, and at least on a monthl
y
basis per AGA
1-93 Section 4.2 “Visual Inspection Hose/Fittin
g
”. The recommended procedure
is to pressurize the Hose and check
f
or leaks and to visuall
y
inspect the Hose
f
or
dama
g
e.
C
aution: Matches, candles, open fl ame or other sources of i
g
nition shall not be
u
sed
f
or Hose inspection. Leak check solutions should be rinsed o
ff
a
f
ter use.
that does not specify a Parker Fitting, the user is solely responsible for the selection
o
f the proper Fittin
g
and Hose Assembl
y
procedures. See instruction 1.4.
The Parker published instructions must be
f
ollowed
f
or assemblin
g
the Fittin
g
s
o
n the Hose. These instructions are provided in the Parker Fitting catalog for the
s
pecifi c Parker Fittin
g
bein
g
used, or b
y
callin
g
1-800-CPARKER, or at www.parker.
com
.
3
.3 Related Accessories: Do not crimp or swage any Parker Hose or Fitting
w
i
t
h
an
y
t
hi
n
g
b
ut t
h
e
li
ste
d
swa
g
e or cr
i
mp mac
hi
ne an
d
di
es
i
n accor
d
ance w
i
t
h
Parker published instructions. Do not crimp or swa
g
e another manu
f
acturers Fittin
g
with a Parker crimp or swage die unless authorized in writing by the engineering
mana
g
er of chief en
g
ineer of the appropriate Parker division.
3
.4 Parts: Do not use an
y
Parker Fittin
g
part
(
includin
g
but not limited
to socket, shell, nipple, or insert
)
except with the correct Parker mating parts, in
accor
d
ance w
i
t
h
P
ar
k
er pu
bli
s
h
e
d
i
nstruct
i
ons, un
l
ess aut
h
or
i
ze
d
i
n wr
i
t
i
n
g
by
t
h
e
e
n
g
ineerin
g
mana
g
er or chie
f
en
g
ineer o
f
the appropriate Parker division.
3
.5 Reusable/Permanent: Do not reuse an
y
fi eld attachable
(
reusable
)
H
ose Fittin
g
that has blown or pulled off a Hose. Do not reuse a Parker permanent
H
ose Fittin
g
(
crimped or swa
g
ed
)
or an
y
part thereo
f
.
C
omplete Hose Assemblies
ma
y
onl
y
be reused after proper inspection under section 4.0. Do not assemble
F
ittin
g
s to an
y
previousl
y
used h
y
draulic Hose that was in service, for use in a fl uid
power application.
3
.6 Pre-Installation Inspection: Prior to installation, a careful examination
o
f the Hose Assembl
y
must be performed. Inspect the Hose Assembl
y
for an
y
dama
g
e or de
f
ects. Do N
O
T use an
y
Hose Assembl
y
that displa
y
s an
y
si
g
ns o
f
n
o
n
co
nf
o
rm
a
n
ce
.
3
.7 Minimum Bend Radius: Installation of a Hose at less than the minimum
l
isted bend radius ma
y
si
g
ni
fi
cantl
y
reduce the Hose li
f
e. Particular attention must
b
e
g
iven to preclude sharp bendin
g
at the Hose to Fittin
g
j
uncture. An
y
bendin
g
durin
g
installation at less than the minimum bend radius must be avoided. If an
y
H
ose is kinked durin
g
installation, the Hose must be discarded.
3
.8 Twist An
g
le and
O
rientation: Hose Assembl
y
installation must be such
that relative motion of machine components does not produce twistin
g
.
3
.9
S
ecurement: In man
y
applications, it ma
y
be necessar
y
to restrain,
protect, or
g
uide the Hose to protect it from dama
g
e b
y
unnecessar
y
fl exin
g
,
pressure sur
g
es, and contact with other mechanical components. Care must be
taken to insure such restraints do not introduce additional stress or wear points.
3
.10 Proper Connection of Ports: Proper ph
y
sical installation of the Hose
A
ssem
bly
requ
i
res a correct
ly
i
nsta
ll
e
d
port connect
i
on
i
nsur
i
n
g
t
h
at no tw
i
st or
torque is trans
f
erred to the Hose when the Fittin
g
s are bein
g
ti
g
htened or otherwise
durin
g
use.
3
.11 External Dama
g
e: Proper installation is not complete without insurin
g
that tensile loads, side loads, kinkin
g
,
fl
attenin
g
, potential abrasion, thread dama
g
e,
o
r dama
g
e to sealin
g
surfaces are corrected or eliminated. See instruction 2.10.
3
.12 S
y
stem Checkout: All air entrapment must be eliminated and the s
y
stem
pressurized to the maximum s
y
stem pressure
(
at or below the Hose maximum
workin
g
pressure
)
and checked for proper function and freedom from leaks.
Personnel must sta
y
out of potential hazardous areas while testin
g
and usin
g
.
3
.13 Routin
g
: The Hose Assembl
y
should be routed in such a manner so i
f
a failure does occur, the escapin
g
media will not cause personal in
j
ur
y
or propert
y
dama
g
e. In addition, if fl uid media comes in contact with hot surfaces, open fl ame,
o
r sparks, a
fi
re or explosion ma
y
occur.
S
ee section 2.4.
4.
0
H
OS
E AND FITTIN
G
MAINTENAN
C
E AND REPLA
C
EMENT
IN
S
TR
UC
TI
O
N
S
4.1 Even with proper selection and installation, Hose life ma
y
be si
g
nifi cantl
y
r
educed without a continuin
g
maintenance pro
g
ram. The severit
y
of the application,
r
isk potential
f
rom a possible Hose
f
ailure, and experience with an
y
Hose
f
ailures
in the application or in similar applications should determine the frequenc
y
of the
ins
p
ection and the re
p
lacement for the Products so that Products are re
p
laced
b
e
f
ore an
y
f
ailure occurs. A maintenance pro
g
ram must be established and
followed b
y
the user and, at minimum, must include instructions 4.2 throu
g
h 4.7.
4.2 Visual Inspection Hose/Fittin
g
: An
y
of the followin
g
conditions require
immediate shut down and replacement o
f
the Hose Assembl
y:
• Fittin
g
slippa
g
e on Hose,
M
SDS’S
(
Available upon request.
)
Federal
OS
HA re
g
ulation 29
C
FR 1910.1200 requires that we transmit to our customers Material
S
a
f
et
y
Data
S
heets
f
or all material covered under
the law. I
f
y
ou are an emplo
y
er in
S
I
C
20-39 who has not
y
et received them,
y
ou are required to obtain them
f
rom us and provide the in
f
ormation to
employees as directed in
S
ecton
(
b
)
o
f
the requlation. Please contact the Hose Products Division - Technical
S
ervices Department:
(
PH
)
440- 943-5700
(
FAX
)
440- 943-3129.
S
afet
y
Guide for Selectin
g
and Usin
g
Hose, Fittin
g
s and Related Accessories