Setting Instructions for Basement Systems
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- Positioning the inboard beams and
stands inside the crawl space wall.
- Place the jack stands and
support stands inside the basement foundation, as shown in illustration
below. The jacks should be almost fully extended, reserve 1/2" of
stroke. NOTE: When
the home is in the lowering position, the jack should be positioned
directly under the home frame. (See #4 A & B for stand
placement)
- Place the inboard beams on
the jack stands and support stands.
- Connect the beams by using
two connecting plates and four 1/2" x 2 1/2" bolts at each
joints. NOTE: Always
support the beams under the joints. The beam connection just
inside the basement wall should be 1/2" away from the wall, with a
steel plate underneath to support the connection.
- Place stop pins in the ends
of each outside beam to avoid accidentally rolling off the beams.
- Place home next to the basement
foundation.
- Position the first section
or unit of the home at least two feet from the basement foundation.
- Level the unit using four
hydraulic jacks, air jacks, air bags or other leveling device.
- Raise the home and remove the axles
from the frame.
- Place four jacks, two on each side
of the home as follows:
- Place rear jacks near the rear
axle.
- Place the front jacks
approximately ten feet back from the front of the home.
- For modulars place the jacks 1/4
of the way in from the ends of the home near the desired position for
the H-beams.
- When using a 3 rail system you
will be placing 6 jacks under the home.
- Place the jacks about 24 inches away
from the desired position of the beams. NOTE:
Be sure that the jacks are level and solid
before lifting unit.
- Use a frame protection plate,
hydraulic jack head plate, or air bags to protect the frame of the home
from damage.
- Always lift the home using two or
four jacks at at time to avoid racking or twisting: NOTE: Safety cribbing
should be used whenever possible.
- Raise the home to a sufficient
height for the frame to clear the basement foundation. NOTE: The axles may be
disconnected when the wheels have cleared the ground.
- Place the "outboard" beams under the
home near the jacks as follows:
- Place the rear H-beam as near as
possible to the rear axle. NOTE: It
may be necessary to drop the rear axle and position the beam in its
place.
- For mobile homes place the front
beam approximately 8 to 10 feet back from the front of the home.
For modulars position the front beam a 1/4 of the way in from the ends
of the home. Connect the outboard beams to the inside H-beams.
- Align and level the outboard beams
with the inboard beams at the desired height.
- Support the beams at a minimum of
every nine feet. (Span based on five tons per roller, longer
spans may be used for lighter loads.)
- Position multi-directional dollies on
the beams directly under the frame. Use a piece of flat bar or
angle, clamped under the frame.
- C clamps are positioned on the frame
of the home 4 inches from each end of two of the top rollers to prevent
too much lengthwise movement while rolling the home sideways. The
top rollers need a certain amount of movement when rolling sideways to
allow the frame of the home to adjust on the top rollers. This
keeps the weight of the home directly over the rolling system,
preventing side pressure on the system.
- When using the lengthwise movement
adjusters the C clamps are not necessary. The two rollers that
are attached to the lengthwise movement adjusters should be placed on
one end of the home. These will help prevent to much lengthwise
movement while rolling the home sideways.
- Lower the frame onto the top rollers
of the multi-directional dollies.
- Always lower two jacks together,
lowering either one end or one side at a time, or lower all four jacks
together.
- Remove the jacks from under the home.
- Roll and position the first section
of the home on the basement foundation using winches
or come-a-longs attached to the end of the beams.
- Remove the wedges from the bottom
dollies.
- Roll both ends of the home at the
same time and at an even rate. NOTE:
One end or the other may be moved a short distance
independently, if needed, to align the home with the foundation.
- Roll the unit to the desired lateral
position and wedge the two bottom dollies on the outside edge.
- Remove the wedge from the top dolly
and roll lengthwise to the desired postion.
- Wedge two top dollies at opposite
corners of the section.
- Lower the home onto the basement
foundation.
- Raise the jack stands enough to lift
the beam a 1/4" off from the center support stand.
- Move the center support stand toward
the outboard beam until the support stand clears the beam joint by 1/4".
- Remove the connecting plates from
the center joints.
- Lower the home in stages, resetting
the jack stands as necessary until the frame is within 1/2" of the
piers or foundation. Jack stands should be lowered and pinned in
2 1/2" increments. NOTE:
By the use of beam pockets and/or wall brackets the
beams can be positioned to allow the home to be lowered in just one or
two stages.
- Remove the wedges for final
alignment.
- Align the unit and release the jacks
so that all of the weight is on the crawl space foundation or piers.
- Remove the beams and dollies from
below the home.
- Switch the support stands for jack
stands under the remaining beams in preparation for rolling the second
section of the home.
- Repeat the overall process for the
second section of the home.
2 Rail
Basement System
3 Rail
Basement System
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