ARMY TM 5-5420-212-10-1
MARINE CORPS TM 08676A-10/1-1
Insert the jack and raise the jack until the roller beam reaches the required height.
Leave the support pins in position as a safety precaution.
Locking Roller Beams
Do not use locks In rollers as a brake during booming. Wait until the bridge has stopped moving
before Inserting lock catches or bearing pads.
The front and rear roller beams are locked by engaging the roller catch in the slotted outer rollers.
The capsill roller beam is locked by pushing the bearing pads to the "IN" position, then lowering the rollers using
the ratchet wrench. This allows the bridge to sit on the bearing pads. Indicator pins on the end of the shafts show whether
the rollers are in the "UP" or "DOWN" position.