ARMY TM 5-5420-212-10-1MARINE CORPS TM 08676A-10/1-1CAUTIONIt is very Important that all of the roller beams be correctly positioned at this time. If they are not,serious problems will arise later during construction. These problems range from skewing of thebridge off of the centerline to possible damaging of the bridge and roller beams.d.Leveling and Re-staging Roller BeamsIt is very important at all times to keep the roller beams level (laterally). Failure to do so will result in difficulty inconnecting/disconnecting components. It is also necessary to ensure that roller beams are adjusted to achieve anacceptable working height. The NCOIC must monitor the height and level of roller beams continually throughout theoperation.Level the roller beams using a carpenters level placed in the center of the roller beam and adjust by raising orlowering the jacks. To maintain an acceptable working height it may be necessary to re-stage the roller beams.WARNINGWhen re-staging roller beams (including capsill roller beam) never allow the roller beam to gobeyond the top of the adjustable support posts.The following procedure describes re-staging a roller beam upwards. To re-stage downwards the procedure isreversed. The procedure is the same for a capsill roller beam except the jackseat sits on a capsill pin, not support pins.This procedure starts with the roller beam supported by the jacks.4-12
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