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Diagram 4
Place frame on base
5. Place Frame on Base. (Diagram 4) Place the base on blocks (large books
will do) so you can access the underside of the base. Ask for assistance to
lift and place the upper frame on the base, positioned so that the stair arms
rest on the base cross tube.
Base
Base cross tube
Upright support
Base column support
(Short tube)
Diagram 5
Attach frame to base.
6. Attach Frame to Base. (Diagram 5) Place a medium-sized, black
washer (K) on each of the base bolts (J). Align the bolt pad with the base
frame holes and insert the base bolts through the bolt pad and into the
base. Attach the four locknuts (A) to the ends of the bolts. Firmly tighten
the base locknuts. Hold each bolt with the hex key (M) while tightening the
nut with the box wrench (I).
(Long tube)
Washer
Base bolt
Base
Bolt pad