Usually the manufacturers warranty will be honored

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Unformatted text preview: lubricants recommended by the manufacturer. Voiding the terms of a warranty is not advisable, so the specified lubricants should be used until the warranty has expired. After warranty expiration the machine and its lubrication requirements may be included in the consolidation list for the facility. c. Consolidation considerations. Consolidation of lubricants requires careful analysis and matching of equipment requirements and lubricant properties. Factors that influence selection of lubricants include operating conditions, viscosity, viscosity index, pour point, extreme pressure properties, oxidation inhibitors, rust inhibitors, detergent-dispersant additives, etc. With a grease, consideration must also include composition of the soap base, consistency, dropping point, pumpability. There are several precautions that must be followed when consolidating lubricants. (1) Characteristics. Consideration should be given to the most severe requirements of any of the original and consolidated lubricants. To prevent equipment damage, the selected lubricant must also have these same characteristics. This is true for greases. (2) Special requirements. consolidated. Applications with very specific lubricant requirements should not be (3) Compatibility. Remember that some lubricant additives may not be compatible with certain metals or seals. d. Consolidation procedure. Consolidation may be accomplished through the services of a lubricant producer or may be attempted by facility personnel who have knowledge of the equipment operating characteristics and lubricating requirements, and an ability to read lubricant producer’s product data. (1) Lubricant supplier. The preferred method for consolidating lubricants is to retain the services of a qualified lubrication engineer. All major oil companies have engineers available to help users with lubrication problems. There are also numerous independent lubricant suppliers with the necessary personnel and background to provide assistance. Ultimately, the knowledge, experience, integrity, and reputation of the lubricant supplier are the best assurance that the products recommended will meet the lubrication requirements for the equipment. The supplier must be given a list of equipment, along with any information about the operating characteristics, ambient conditions, and lubrication requirements. The engineer can use this information to consolidate lubricating requirements where possible, and to isolate equipment with highly specific requirements that cannot be consolidated. The primary disadvantage with this approach is that the lubricant supplier will, in all probability, recommend only those products within the company’s product line. If this is a major concern, the services of an independent lubricating engineer or tribologist, not affiliated with any supplier, may be retained. (2) Consolidation by in-house personnel. (a) In-house personnel should begin the consolidation process by preparing a spreadsheet identifying equipment, lubricating requirements, lubricant characteristics, and brand names. The equipment should be 13-11 EM 1110-2-1424 28 Feb 99 sorted by type of lubricant (oil, hydraulic fluid, synthetics, biodegradable, grease) required. Under each type, the properties of each lubricant should be grouped such as oil viscosity, detergent-dispersant requirements, EP requirements, rust and oxidation inhibitors, NLGI grade of grease, viscosity of oil component in the grease, pumpability, etc. See Figure 13-1 for an example of a spreadsheet showing the essential features. Figure 13-1. Lubricant consolidation chart (Reference: Neale, M. J., Lubrication...
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