Vestil LAD-FM - Manual (Page 5)

Rev. 3/11/2013 LAD-FM, Manual
¼ inch
diameter
bolts (4)
Fasten mounting plate to
mezzanine with ½ in. hardware
Jack mounting plate
Stair jack arm
Mezzanine
Mounting
plate
weldment
Step 3: Fasten the stair mounting plate to the mezzanine using ½ inch (diameter) bolts of appropriate
length selected by your building engineer. Fasten the jack mounting plate to the supporting structure of
the mezzanine using ¼ inch (diameter) bolts of appropriate length. [Diagram below shown with stairs and
handrails removed to clearly show bolt attachment points.]
Step 4: Lower the stairs until the top deck plate rests solidly on the mezzanine. Refer to FIG. 1 on p. 3
and make sure that the jack direction selector is DOWN; then move the handle back-and-forth to lower
the stairs. [NOTE: Push the base of the stairs away from the mezzanine (or wall) as you begin lowering
the stairs. Once the stairs begin to lower, it is not necessary to continue to push the base.]
Step 5: Attach the bottom end of the stair rails to the lower stair rail hinges using 3 /
8
in. – 16 x 2¼ in.
bolts and 3 /
8
in. - 16 lock nuts. Put a flat washer between the handrail and the handrail bracket on both
sides. [NOTE: As shipped, the lower stair rail posts will be folded to lay parallel to the side rails. Pivot the
posts upward, and pin them in upright orientation as shown in “Storage” on p. 6.]
Stair
rail
hinge
Detent
Lower stair rail post
(right side)
Left side lower
stair rail post
3 /
8
in. – 16 x
2¼ in. bolt
3 /
8
in.
flat
washer
3 /
8
in. flat
washer
3 /
8
in. -16 lock nut
Copyright 2013 Vestil Manufacturing Corp. Page 5 of 7