TM 5-2420-230-24-1
Section II. Lubricating Instructions.
3-7. MAINTAINING LUBRICANT LEVELS.
Lubricant levels must be checked as specified in the crew level PMCS (TM 5-2420-230-10), the PMCS Table (Para 3-3) and
the General Lubrication Instructions (Para 3-8). Steps must be taken to replenish and maintain lubricant levels.
3-8. GENERAL LUBRICATION INSTRUCTIONS.
Degreasing Solvent (MIL-PRF-680) is toxic and flammable. Keep away from heat or flame. Never
smoke when using solvent. The flashpoint for Type II Degreasing Solvent is 141 F (61 C). Wear
protective goggles, face shield, and gloves; use only in a well-ventilated area; avoid contact with
skin, eyes, and clothes; and do not breathe vapors. Failure to comply may result in injury or death
to personnel.
If personnel become dizzy while using cleaning solvent, immediately get fresh air and medical
help. If solvent contacts skin or clothes, flush with cold water. If solvent contacts eyes, immediately
flush eyes with water and get immediate medical attention.
Adhesives, solvents, and sealing compounds burn easily and give off vapors that are harmful to the
skin and clothing. To avoid injury or death, keep away from open fire when using these materials,
and use only in well-ventilated areas. If adhesives, solvents, or sealing compounds contact the skin
or clothing, wash immediately with soap and water, and rinse thoroughly. Failure to comply may
result in injury or death to personnel.
a. Cleaning Fittings Before Lubrication. Clean parts with Degreasing Solvent MIL-PRF-680 (Item 58, Appendix C)
or equivalent. Dry before lubricating. Dotted arrow points indicate lubrication on both sides of the equipment or in
multiple locations.
b. Lubrication After Fording. If fording operation occurs, lubricate all fittings below fording depth, and check axles
for contamination.
c. Lubrication After High-Pressure Washing. After a thorough washing, lubricate all grease fittings and oilcan
points outside and underneath vehicle.
d. Localized Views. A reference to the appropriate localized view is given after most lubrication entries. Localized
views begin on page F-23.
e. Notes.
(1)
COLD TEMPERATURE OPERATION. For operating of equipment in expected continuous temperatures below
0 F (-18 C), remove lubricants prescribed in Table 3-2 for temperatures above 0 F (-18 C). Relubricate with
lubricants specified in Table 3-2 for temperatures 0 F to -50 F (-18 C to -46 C). After changing to OEA, drain
one pint of oil from oil sampling valve.
(2)
ENGINE, TRANSMISSION, HYDRAULIC SYSTEM.
(a)
Transmissions. Operate engine 1 minute at 1,500 RPM, then idle until transmission reaches normal
operating temperature. With engine idling, check transmission dipstick. If oil level is on or below LOW line,
add oil. Approximately 1 qt. (0.9 L) of oil is required to bring oil level from bottom of LOW band to desired
level between LOW and FULL band. See Para 3-6.
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