3 it should be noted that the equipment manufacturers

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Unformatted text preview: tributors. (3) It should be noted that the equipment manufacturer's recommendation should not necessarily be considered the best selection. Individual manufacturers may have different opinions based on their experience and equipment design. The concept of “best” lubricant is ambiguous because it is based on opinion. Despite this ambiguity, the manufacturer is probably in the best position to recommend a lubricant. This recommendation should be followed unless the lubricant fails to perform satisfactorily. When poor performance is evident, the manufacturer should be consulted for additional recommendations. This is especially critical if the equipment is still under warranty. (4) Although some manufacturers may recommend a specific brand name, they can usually provide a list of alternative lubricants that also meet the operating requirements for their equipment. One of the recommended lubricants should be used to avoid compromising the equipment warranty if it is still in effect. Physical qualities (such as viscosity or penetration number), chemical qualities (such as paraffinic or naphthenic oils), and applicable test standards are usually specified. 13-4 EM 1110-2-1424 28 Feb 99 b. Lubricant producer recommendations. (1) When manufacturers recommend lubricants for their products in terms of specifications or required qualities rather than particular brand names, the user must identify brands that meet the requirements. Following the suggestions given in this chapter may help the user identify appropriate products. When a user is uncertain, lubricant producers should be consulted to obtain advice on products that comply with the required specifications. (2) Many lubricant producers employ product engineers to assist users in selecting lubricants and to answer technical questions. Given a manufacturer's product description, operating characteristics, unusual operating requirements, and lubricant specification, product engineers can identify lubricants that meet the manufacturer's specifications. Viscosity should be the equipment manufacturer’s recommended grade. If a recommendation seems unreasonable, the user should ask for verification or consult a different lubricant producer for a recommendation. These products will probably vary in quality and cost. The application should dictate lubricant selection. This will help prevent the unnecessary purchase of high-priced premium quality lubricants when they are not required. c. User selection. (1) The user should ensure that applicable criteria are met regardless of who makes the lubricant selection. Selection should be in the class recommended by the machinery manufacturer (R&O, EP, AW, etc.) and be in the same base stock category (paraffinic, naphthenic, or synthetic). Furthermore, physical and chemical properties should be equal to or exceed those specified by the manufacturer. Generally, the user should follow the manufacturer's specification. Additional factors to be considered are shown in Tables 13-1, 13-2, and 13-3. Each of these tables uses different criteria that can be beneficial when the user is selecting lubricants. (2) If the manufacturer’s specifications are not available, determine what lubricant is currently in use. If it is performing satisfactorily, continue to use the same brand. If the brand is not available, select a brand with specifications equal to or exceeding the brand previously used. If the lubricant is performing poorly, obtain the recommendation of a product engineer. If the application is critical, get several recommendations. (3) Generally, the user will make a selection in either of two...
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This note was uploaded on 02/09/2012 for the course MECH 84 taught by Professor Mba during the Spring '11 term at LDSBC.

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