PFA
A
FEP
B
D
C
G
F
E
Parker Hannifin Corporation
| Parflex
®
Division, TexLoc | Fort Worth, Tx |
For detailed ordering information, please consult price list or contact Parker Texloc.
F09
3.0
HOSE AND FITTING ASSEMBLY AND INSTALLATION
INSTRUCTIONS
3.1
Component Inspection: Prior to assembly, a careful examination of the
Hose and Fittings must be performed. All components must be checked for
correct style, size, catalog number, and length. The Hose must be examined
for cleanliness, obstructions, blisters, cover looseness, kinks, cracks, cuts or
any other visible defects. Inspect the Fitting and sealing surfaces for burrs,
nicks, corrosion or other imperfections. Do NOT use any component that
displays any signs of nonconformance.
3.2
Hose and FittingAssembly: Do not assemble a Parker Fitting on a Parker
Hose that is not specifically listed by Parker for that Fitting, unless authorized
in writing by the engineering manager or chief engineer of the appropriate
Parker division. Do not assemble a Parker Fitting on another manufacturer’s
Hose or a Parker Hose on another manufacturer’s Fitting unless (i) the
engineering manager or chief engineer of the appropriate Parker division
approves the Assembly in writing or that combination is expressly approved
in the appropriate Parker literature for the specific Parker product, and (ii)
the user verifies the Assembly and the application through analysis and
testing. For Parker Hose that does not specify a Parker Fitting, the user is
solely responsible for the selection of the proper Fitting and Hose Assembly
procedures. See instruction 1.4.
To prevent the possibility of problems such as leakage at the Fitting or sys-
tem contamination, it is important to completely remove all debris from the
cutting operation before installation of the Fittings. The Parker published
instructions must be followed for assembling the Fittings on the Hose. These
instructions are provided in the Parker Fitting catalog for the specific Parker
Fitting being used, or by calling 1 800 CPARKER, or at
.
3.3
RelatedAccessories: Do not crimp or swage any Parker Hose or Fitting
with anything but the listed swage or crimp machine and dies in accordance
with Parker published instructions. Do not crimp or swage another manufac-
turer’s Fitting with a Parker crimp or swage die unless authorized in writing by
the engineering manager or chief engineer of the appropriate Parker division.
3.4
Parts: Do not use any Parker Fitting part (including but not limited to
socket, shell, nipple, or insert) except with the correct Parker mating parts, in
accordance with Parker published instructions, unless authorized in writing by
the engineering manager or chief engineer of the appropriate Parker division.
3.5
Field Attachable/Permanent: Do not reuse any field attachable
Hose Fitting that has blown or pulled off a Hose. Do not reuse a Parker
permanent Hose Fitting (crimped or swaged) or any part thereof. Com-
plete Hose Assemblies may only be reused after proper inspection
under section 4.0. Do not assemble Fittings to any previously used
hydraulic Hose that was in service, for use in a fluid power application.
3.6
Pre-Installation Inspection: Prior to installation, a careful examina-
tion of the Hose Assembly must be performed. Inspect the Hose As-
sembly for any damage or defects. DO NOT use any Hose Assembly that
displays any signs of nonconformance.
3.7
Minimum Bend Radius: Installation of a Hose at less than the mini-
mum listed bend radius may significantly reduce the Hose life. Particular
attention must be given to preclude sharp bending at the Hose to Fitting
juncture. Any bending during installation at less than the minimum bend
radius must be avoided. If any Hose is kinked during installation, the Hose
must be discarded.
3.8
Twist Angle and Orientation: Hose Assembly installation must be such
that relative motion of machine components does not produce twisting.
3.9
Securement: In many applications, it may be necessary to restrain,
protect, or guide the Hose to protect it from damage by unnecessary flex-
ing, pressure surges, 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 physical installation of the Hose
Assembly requires a correctly installed port connection insuring that no twist
or torque is transferred to the Hose when the Fittings are being tightened
or otherwise during use..
3.11
External Damage: Proper installation is not complete without insuring
that tensile loads, side loads, kinking, flattening, potential abrasion, thread
damage or damage to sealing surfaces are corrected or eliminated. See
instruction 2.10.
3.12
System Checkout: All air entrapment must be eliminated and the
system pressurized to the maximum system pressure (at or below the Hose
maximum working pressure) and checked for proper function and freedom
from leaks. Personnel must stay out of potential hazardous areas while
testing and using.
3.13
Routing: The Hose Assembly should be routed in such a manner so
if a failure does occur, the escaping media will not cause personal injury or
property damage. In addition, if fluid media comes in contact with hot sur-
faces, open flame or sparks, a fire or explosion may occur. See section 2.4.
3.14
Ground Fault Equipment Protection Devices (GFEPDs): WARNING!
Fire and Shock Hazard: To minimize the danger of fire if the heating cable
of a Multitube bundle is damaged or improperly installed, use a Ground Fault
Equipment Protection Device. Electrical fault currents may be insufficient to
trip a conventional circuit breaker.
For ground fault protection, the IEEE 515:1989 (
standard for
heating cables recommends the use of GFEPDs with a nominal 30 milliam-
pere trip level for “piping systems in classified areas, those areas requiring
a high degree of maintenance, or which may be exposed to physical abuse
or corrosive atmospheres”.
4.0
HOSE AND FITTING MAINTENANCE AND REPLACEMENT
INSTRUCTIONS
4.1
Even with proper selection and installation, Hose life may be significantly
reduced without a continuing maintenance program. The severity of the ap-
plication, risk potential from a possible Hose failure, and experience with any
Hose failures in the application or in similar applications should determine
the frequency of the inspection and the replacement for the Products so that
Products are replaced before any failure occurs. A maintenance program
must be established and followed by the user and, at minimum, must include
instructions 4.2 through 4.7.
4.2
Visual Inspection Hose/Fitting: Any of the following conditions require
immediate shut down and replacement of the Hose Assembly:
Fitting slippage on Hose;
Damaged, cracked, cut or abraded cover (any reinforcement exposed);
Hard, stiff, heat cracked, or charred Hose;
Cracked, damaged, or badly corroded Fittings;
Leaks at Fitting or in Hose;
Kinked, crushed, flattened or twisted Hose; and
Blistered, soft, degraded, or loose cover.
4.3
Visual Inspection All Other: The following items must be tightened,
repaired, corrected or replaced as required:
Leaking port conditions;
Excess dirt buildup;
Worn clamps, guards or shields; and
System fluid level, fluid type, and any air entrapment.
4.4
Functional Test: Operate the system at maximum operating pressure
and check for possible malfunctions and leaks. Personnel must avoid po-
tential hazardous areas while testing and using the system. See section 2.2.
4.5
Replacement Intervals: Hose assemblies and elastomeric seals
used on Hose Fittings and adapters will eventually age, harden, wear and
deteriorate under thermal cycling and compression set. Hose Assemblies
and elastomeric seals should be inspected and replaced at specific re-
placement intervals, based on previous service life, government or industry
recommendations, or when failures could result in unacceptable downtime,
damage, or injury risk. See section 1.2. Hose and Fittings may be subjected
to internal mechanical and/or chemical wear from the conveying fluid and
may fail without warning. The user must determine the product life under
such circumstances by testing. Also see section 2.5.
See section 1.2.
Safety Guide