ARMY TM 5-5420-212-23
MARINE CORPS TM 08676A-23/3
(f) Check paper after 48 hours for an oil stain. If stain is present, measure the diameter.
(g) If mean diameter is 3.9 in (100 mm) or less, jack is acceptable and no further testing is necessary.
(h) If stain is above mean diameter in (g) above, keep jack under observation for a further 48 hours.
(i) If stain does not increase in size by more than 10% during the further 48 hour period, the jack is
(j) If oil stain has increased by more than 10% in the further 48 hour period, the jack shall be rebuilt with new
seals and gaskets. It must then be re-submitted for testing as detailed in paragraph e. (1) and (2).