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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
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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- Spring '11