ARMY TM 5-5420-212-23
MARINE CORPS TM 08676A-23/2
(4) Adjustable Support
The adjustable support is used in the construction of double story and link reinforced bridges, and supports the roller
beam and bridging capsill. It also permits adjustment in the roller beam's height and slope.
In the posts of the adjustable support there are six support pin holes the centers of which are 5 1/2 in (140 mm) apart.
These holes are used to support the roller beam/capsill and jack seat during raising and lowering of the beam to various
heights. Leveling screws are adjusted to allow the adjustable support to rock 1/4 in (6 mm) in either direction.
(1) BALL JOINT. Used as pivoting point for adjustable support. Takes load of roller beam and distributes through the