An Inspection and Preventive Maintenance Program for Industrial Hose THE GATES SAFETY GUIDE
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An Inspection and Preventive Maintenance Program for Industrial Hose

table of contents What is Preventive Maintenance? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Benefits of a Preventive Maintenance Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Components of a Preventive Maintenance Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Definition of an Industrial Hose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

THE GATES SAFETY GUIDE DEFINITION OF AN INDUSTRIAL HOSE What is Preventive Maintenance? An unexpected hose failure can damage equipment, stop production and even cause injury or death. • Replacing hoses on an established schedule regardless of hose condition. • Identification of potential problems before failures occur. • Keeping equipment in operation by preventing key component failures. • Properly using the correct hose for the application. • Replacing hoses showing signs of deterioration/damage before it fails. Benefits of a Preventive Maintenance Program: • Eliminates costly repairs •...

PROPER HOSE SELECTION Proper hose selection is the first step in preventive maintenance. Selecting the best product for the application will allow you to obtain the maximum life expectancy from the product for the most value. When selecting the correct hose, use the acronym STAMPED as your guide to defining critical and important characteristics: S - Size: T- Tem perature: A- Application: M - Material Be ing Conveyed: P- Pressure: I.D. (inside diameter) O.D. (outside diameter) Length Flow rate requirements (GPM for liquids; CFM for gases). Consider ambient and internal temperatures as well...

PROPER COUPLING SELECTION Industrial hose coupling recommendations are designated by the block numbers found on the hose product sheets in the Industrial Hose Catalog #39496-000. Critical Applications: Coupling Selection Reminders: Industrial Hose Products/List Prices 39496-000 July 30, 2007 Supersedes 39496-000 July 1, 2006 Air and Multi-Purpose Hose Terminator® RECOMMENDED FOR: Applications requiring a premium-quality, multi-purpose hose with superior abrasion resistance for air, oil and some chemical applications. Excellent durability for extra long life in these applications: mining,...

STATIC ELECTRICITY GROUNDING What is a static bond? • he grounding of a static-eliminating or T static-conducting component. Static Electricity Grounding Importance: • ovement of some dry material through a M rubber or plastic hose can generate enough static electricity to be hazardous. Not only could a static spark ignite a fire or cause an explosion, but enough charge could build-up in the hose to cause a severe shock if contacted. Grounding can be achieved through use of: 1. tatic conductive stock in the S tube or cover. 2. ent wire method B Use with a hose that is wire-reinforced. •...

HOSE INSPECTIONS Periodic Inspections— Planning for Safety and Maximum Performance Achieving hose safety and performance requires periodic inspections of the hose and fittings prior to, during and after use. Hoses that have become old, worn or damaged can present a danger to personnel and to the environment. Hoses that are not properly maintained can fail, which may result in costly material spills, cleanup, downtime and injury. Planned inspections, corrective actions and hose replacements can be less expensive than replacement or repairs made after a failure occurs. When and how often...

Safety Precaution Never leave an operating transfer hose unattended or unmonitored. 1. Never exceed the rated working pressure of a hose. • Never allow pressure spikes or surges above the maximum rated working pressure of the hose. • Excessive pressure can shorten the life of the hose. 2. Never run over a hose with equipment or vehicles, such as fork lifts. • Running over a hose can damage the tube, reinforcement and cover. • A buildup of pressure can cause damage at the coupling. 3. Never pull a hose by its coupling. • Pulling a hose at the coupling can kink the hose and weaken...

RMA HYDROSTATIC TESTING PROCEDURES 9. Elevate the free end and fill the hose with water from the pump. • Always use water. Never test with flammable or corrosive fluids, solvents or compressed gas. 10. As the hose fills with water, bleed the air out through the open valve. Close the valve and lower it to the ground when all the air is out. 11. RMA has testing literature available for each hose type. It is imperative to pressure test the hose at the proper pressure. 12. Drain the hose and allow it to dry before returning it to service. • Avoid cross contamination. Dedicate a hose to handle a...

I 16 THE GATES SAFETY GUIDE SPECIALTY HOSE Acid/Chemical Hose Selecting the right chemical hose is EXTREMELY critical. The incorrect hose can lead to potentially dangerous or fatal accidents/failures. To ensure selection of the correct acid/chemical hose follow these steps: 1. Use the Chemical Resistance Table and Hose Finder in the Gates Industrial Hose Catalog #39496-000 to select the proper hose. The table lists approximately 1,400 chemicals and the Gates tube stocks most suitable for each type of chemical. 2. Use couplings that are compatible with the application and the product being...

I 18 THE GATES SAFETY GUIDE Air Hose Increase the life of an air hose by following these preventive tips: 1. Oil Oil and air hoses do not mix. • Oil can get into the hose from the air compressor or from lubricating various air tools. • Wipe excess oil from the hose cover. • If oil damage is possible, choose a hose that has a tube and cover that is designed to withstand oil. RMA Oil Classifications • Class A = High Oil Resistance • Class B = Medium-High Oil Resistance • Class C = Limited Oil Resistance 2. Heat • Keep hose away from radiant heat sources like steam pipes, heaters, exhaust...