TM 5-2420-230-10
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 (Item 9, Appendix D) or equivalent.
Dry before lubricating. Dotted arrow points indicate lubrication on both sides of the equipment.
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 3-32.
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)
CHASSIS.
(a)
Purging of Lubricant. When using a grease gun, apply lubricant to the fitting until clean lubricant squeezes
out of the part being lubricated.
Do not start engine or move vehicle when anyone is under vehicle. Severe injury or death could result.
(b)
U-joints. Use the proper lubricant to purge all four bearing seals of each U-joint. This flushes abrasive
contaminants from each bearing and ensures all four bearings are filled properly. Pop the seals, which are
made to be popped.
If any seals fail to purge, move drive shaft from side to side while applying gun pressure. This allows greater
clearance on thrust end of bearing that is not purging. If seals still do not purge, rock vehicle by releasing the
parking brake, start engine, put transmission in F (Forward) or R (Reverse), and allow vehicle to roll. This
