
Step 5
1. Positioning the Frame:
Center the upper platform frame assembly
(part# F) over the upright U-Joint coupler of the
Lower Seat Frame Assembly, directing it toward
the motion unit.
2. Aligning and Inserting the U-Joint Coupler:
Gently lower the frame, allowing the inner lip of
the U-Joint coupler to insert through the center
opening. With the upper platform frame
assembly properly positioned, align the holes of
both components.
3. Inserting the Bolts:
Carefully slide bolts up through the bottom one
at a time, ensuring each is properly aligned.
Once each bolt is through, place a locking
washer on each one and hand tighten with one
of the included nuts.
4. Securing the Components:
Carefully hand tighten the nuts to align the
components. Once aligned, use a wrench to
secure each bolt head on the bottom. Utilize a
second wrench or ratcheting socket to
incrementally tighten the nuts up top. Perform
this incrementally, working in a cross pattern
from one bolt diagonally to the next, repeating
until all the bolts are securely tightened,
ensuring the alignment of components is
maintained throughout the process.
F