ARMY TM 5-5420-212-10-1
MARINE CORPS TM 08676A-10/1-1
CAUTION
It 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 the
bridge off of the centerline to possible damaging of the bridge and roller beams.
d.
Leveling and Re-staging Roller Beams
It is very important at all times to keep the roller beams level (laterally). Failure to do so will result in difficulty in
connecting/disconnecting components. It is also necessary to ensure that roller beams are adjusted to achieve an
acceptable working height. The NCOIC must monitor the height and level of roller beams continually throughout the
operation.
Level the roller beams using a carpenters level placed in the center of the roller beam and adjust by raising or
lowering the jacks. To maintain an acceptable working height it may be necessary to re-stage the roller beams.
WARNING
When re-staging roller beams (including capsill roller beam) never allow the roller beam to go
beyond the top of the adjustable support posts.
The following procedure describes re-staging a roller beam upwards. To re-stage downwards the procedure is
reversed. 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.
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