TM 9-4940-568-10
G-2
G-3. LUBRICATION INTERVALS.
a.
Service Interval Under Normal Conditions. Service intervals listed are for normal operation in moderate
temperatures, humidity, and atmospheric conditions. Hard time intervals may be shortened if your lubricants are
contaminated or if you are operating the equipment under adverse conditions, including longer-than-usual operating
hours. Hard time intervals may be extended during periods of low activity, though adequate preservation precautions
must be taken. Perform semi-annual service intervals every six months.
b.
Service Interval Under Unusual Conditions. Increase frequency of lubricating service when operating
under abnormal conditions such as high or low temperatures. Such operation can diminsh lubricant’s protective
qualities. More frequent lubricating service intervals are necessary to maintain FRS readiness when operating under
abnormal conditions.
c.
Hard Time Intervals. Intervals shown in this appendix are based on hours and calendar times. An example of
hours and calendar intervals is 3/S, in which 3 HRS stands for three hours, and S stands for semiannually (every six
months). The lubrication for the FRS is to be performed at whichever interval occurs first. For equipment under
manufacturer ’s warranty, hard time oil service intervals shall be followed.
G-4. LUBRICATION FOR OPERATION UNDER EXTREME
TEMPERATURES.
a.
Changes in Lubricant Grades. Lubricant grades change with weather conditions. Refer to Lubrication
Table for lubricant grade changes.
b.
Arctic Conditions. Refer to FM 9-207, Operation and Maintenance of Ordinance Material in cold weather (0
degrees F to –65 degrees F) (–18 degrees C to –54 degrees C), or the Lubrication Table.
G-5. CORROSION CONTROL.
Refer to Para 1-3 for appropriate corrosion control procedures.
