Table 39 (Continued)
oil changes are recommended.
Types of Lubricants. Oils, greases, and preservatives for waterworks are
listed in Table 40. This list does not contain all the lubricants available under military
specifications, but it has been developed in an effort to establish good lubrication
practice for normal operating conditions with as small a number of good lubricants as is
feasible. Following Table 40 and Table 41 (a list of uses for oils and greases) does not
relieve the operator from using lubricants that meet the requirements of the equipment
manufacturer's recommendations. The information in Table 40 should be familiar to all
maintenance and operating personnel. This list is subject to modification at the
judgment of maintenance personnel, providing the modification is approved by the
Different authorities may make conflicting lube recommendations
for essentially the same item; however, general reference material is available to help
select the correct lubricant for a specific application.
Grease is graded on a number scale, or viscosity index, by the
National Lubricating Grease Institute. For example, No. 0 is very soft; No. 6 is quite
stiff. A typical grease for most treatment plant applications might be a No. 2 lithium or
sodium compound grease, which is used for operating temperatures up to 250F
A list of uses for lubricants that are generally satisfactory when
used on equipment operating under normal ranges of temperature, pressure, and
corrosion is contained in Table 41. However, in view of the wide variation in
characteristics of equipment and conditions of operation, the manufacturer's
instructions for lubrication should be checked to make sure that listed lubricants meet
the requirements of the manufacturer's recommended lubricants.