ARMY TM 5-5420-212-10-1
MARINE CORPS TM 08676A-10/1-1
Raise the jack until the roller beam has just passed a hole in the adjustable support posts.
Put support pins in this hole and insert retainer clips.
Lower the jacks until the roller beam is on the support pins.
Lower the jack completely and remove it from the jack seat.
Remove the jack seat and reposition the jack seat support pins (or capsill pin) into the next higher hole.
Place the jack seat on the support pins.