0009 00
BOH-PM-13-2
Chapter 2 Rev. 0.01
0009 00-8
Procedure for Lowering the Roof
1. Repeat steps 1 through 8 from the Raising procedure to secure the completed jack assembly
against the office module ceiling.
2. Pull and twist the spring-loaded knobs from the front of the roof elevating lock assemblies until
the knobs are locked in the out position. The internal post and external casing of the lock
assemblies should each have holes in alignment.
3. Begin cranking the jack down until the internal post of the lock assemblies have moved down and
the hole is no longer visible. See Raising procedure for crank operation.
4. Twist the knobs on the lock assemblies to unlock which will allow the knob to press against the
internal post and act as a failsafe.
5. Proceed cranking the jack down until the knobs engage the next hole position.
6. Repeat steps 2 through 5 from this section until the desired roof height is reached. Then continue
to step 7.
7. Lock the lanyard pins in the designated holes in the side of the lock assembly casing.
8. Once all 3 elevating lock assemblies have been secured at the desired height, the jack assembly
can be fully retracted. See Raising procedure for crank operation.
9. Disassemble the jack assembly components and reposition back in their designated storage
locations.
END OF WORK PACKAGE
