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HoseTechnicalAccessoriesEquipmentFittings Catalog 4400 US Technical Safety Guide & MSDS Statement with Parker published instructions. Do not crimp or swage another manufactur-� Leaks at Fitting or in Hose; ers Fitting with a Parker crimp or swage die unless authorized in writing by the� Kinked, crushed, flattened or twisted Hose; and engineering manager of chief engineer of the appropriate Parker division. � Blistered, soft, degraded, or loose cover. A 3.4 Parts: Do not use any Parker Fitting part (including but not limited 4.3 Visual Inspection All Other: The following items must be tightened, to socket, shell, nipple, or insert) except with the correct Parker mating parts, in repaired, corrected or replaced as required: accordance with Parker published instructions, unless authorized in writing by the engineering manager or chief engineer of the appropriate Parker division. � Leaking port conditions; 3.5 Reusable/Permanent: Do not reuse any field attachable (reusable) � Excess dirt buildup; Hose Fitting that has blown or pulled off a Hose. Do not reuse a Parker permanent� Worn clamps, guards or shields; and Hose Fitting (crimped or swaged) or any part thereof. Complete Hose Assemblies� System fluid level, fluid type, and any air entrapment. may only be reused after proper inspection under section 4.0. Do not assemble 4.4 Functional Test: Operate the system at maximum operating pressure Fittings to any previously used hydraulic Hose that was in service, for use in a and check for possible malfunctions and leaks. Personnel must avoid potential fluid power application. hazardous areas while testing and using the system. See section 2.2. 3.6 Pre-Installation Inspection: Prior to installation, a careful examination 4.5 Replacement Intervals: Hose assemblies and elastomeric seals used of the Hose Assembly must be performed. Inspect the Hose Assembly for any on Hose Fittings and adapters will eventually age, harden, wear and deteriorate damage or defects. Do NOT use any Hose Assembly that displays any signs of under thermal cycling and compression set. Hose Assemblies and elastomeric nonconformance. seals should be inspected and replaced at specific replacement intervals, based 3.7 Minimum Bend Radius: Installation ofaHose at lessthan the minimum on previous servicelife,government or industryrecommendations, or when failures listed bend radius may significantly reduce the Hose life. Particular attention must could result in unacceptable downtime, damage, or injury risk. B be given to preclude sharp bending at the Hose to Fitting juncture. Any bending See section 1.2. during installation at less than the minimum bend radius must be avoided. If any 4.6 Hose Inspection and Failure: Hydraulic power is accomplished by Hose is kinked during installation, the Hose must be discarded. utilizing high-pressure fluids to transfer energy and do work. Hoses, Fittings, and 3.8 Twist Angle and Orientation: HoseAssembly installation must be such Hose Assemblies all contribute to this by transmitting fluids at high pressures. that relative motion of machine components does not produce twisting. Fluids under pressure can be dangerous and potentially lethal and, therefore, 3.9 Securement: In many applications, it may be necessary to restrain, extreme caution must be exercised when working with fluids under pressure and protect, or guide the Hose to protect it from damage by unnecessary flexing, handling the Hoses transporting the fluids. From time to time, Hose Assemblies pressure surges, and contact with other mechanical components. Care must be will fail if they are not replaced at proper time intervals. Usually these failures are taken to insure such restraints do not introduce additional stress or wear points. the result of some form ofmisapplication, abuse, wear, or failure to perform proper 3.10 Proper Connection of Ports: Proper physical installation of the Hose maintenance. When Hoses fail, generally the high-pressure fluids inside escape Assembly requires a correctly installed port connection insuring that no twist or in a stream which may or may not be visible to the user. Under no circumstances torque is transferred tothe Hose when the Fittings are beingtightened orotherwise should the userattempt to locate the leak by "feeling" with their hands or any other during use. part of their body. High-pressure fluids can and will penetrate the skin and cause 3.11 External Damage: Proper installation is not complete without insuring severe tissue damage and possibly loss of limb. Even seemingly minor hydraulic that tensile loads, side loads, kinking, flattening, potential abrasion, thread dam- fluid injection injuries must be treated immediately by a physician with knowledge age, or damage to sealing surfaces are corrected or eliminated. See instruction of the tissue damaging properties of hydraulic fluid. C 2.10. If a Hose failure occurs, immediately shut down the equipment and leave the area 3.12 System Checkout: All air entrapment must be eliminated and the until pressure has been completely released from the Hose Assembly. Simply system pressurized to the maximum system pressure (at or below the Hose shutting down the hydraulic pump may or may not eliminate the pressure in the maximum working pressure) and checked for proper function and freedom from Hose Assembly. Many times check valves, etc., are employed in a system and leaks. Personnel must stay out of potential hazardous areas while testing and can cause pressure to remain in a Hose Assembly even when pumps or equip- using. ment are not operating. Tiny holes in the Hose, commonly known as pinholes, can eject small, dangerously powerful but hard to see streams of hydraulic fluid. 3.13 Routing: The HoseAssembly should be routed in such a manner so if It may take several minutes or even hours for the pressure to be relieved so that a failure does occur, the escaping media will not cause personal injury or property the Hose Assembly may be examined safely. damage. In addition, if fluid media comes in contact with hot surfaces, open flame, or sparks, a fire or explosion may occur. See section 2.4. Once the pressure has been reduced to zero, the HoseAssembly may be taken off the equipment and examined. It must alwaysbe replaced if a failure has occurred. Never attempt to patch or repair a Hose Assembly that has failed. Consult the 4.0 HOSE AND FITTING MAINTENANCE AND REPLACEMENT nearest Parker distributor or the appropriate Parker division for Hose Assembly INSTRUCTIONS replacement information. 4.1 Even with proper selection and installation, Hose life may be signifi- Never touch or examine a failed HoseAssembly unless it is obvious that the Hose cantly reduced without a continuing maintenance program. The severity of the D no longer contains fluid under pressure. The high-pressure fluid is extremely application, risk potential from a possible Hose failure, and experience with any dangerous and can cause serious and potentially fatal injury. Hose failures in the application or in similar applications should determine the fre- 4.7 Elastomeric seals: Elastomeric seals will eventually age, harden, wear quency of the inspection and the replacement forthe Productsso that Products are and deteriorate under thermal cycling and compression set. Elastomeric seals replaced before any failure occurs. A maintenance program must be established should be inspected and replaced. and followed by the user and, at minimum, must include instructions 4.2 through 4.8 Refrigerant gases: Special care should be taken when working with 4.7. refrigeration systems. Sudden escape of refrigerant gases can cause blindness 4.2 Visual Inspection Hose/Fitting: Any of the following conditions require if the escaping gases contact the eye and can cause freezing or other severe immediate shut down and replacement of the Hose Assembly: injuries if it contacts any other portion of the body. � Fitting slippage on Hose, 4.9 Compressed naturalgas (CNG): ParkerCNG HoseAssemblies should � Damaged, cracked, cut or abraded cover (any reinforcementbe tested after installation and before use, and at leaston a monthlybasis perAGA exposed); 1-93 Section 4.2 "Visual Inspection Hose/Fitting". The recommended procedure � Hard, stiff, heat cracked, or charred Hose; is to pressurize the Hose and check for leaks and to visually inspect the Hose for damage. � Cracked, damaged, or badly corroded Fittings; Caution: Matches, candles, open flame or other sources of ignition shall not be used for Hose inspection. Leak check solutions should be rinsed off after use. E MSDS'S (Available upon request.) Federal OSHA regulation 29 CFR 1910.1200 requires that we transmit to our customers Material Safety Data Sheets for all material covered under the law. If you are an employer in SIC 20-39 who has not yet received them, you are required to obtain them from us and provide the information to employees as directed in Secton (b) of the requlation. Please contact the Hose Products Division - Technical Services Department: (PH) 440- 943-5700 (FAX) 440- 943-3129. Hose Products Division E- Parker Hannifin Corporation Wickliffe, Ohio
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