Rev. 3/7/2022
VST-4-Y, MANUAL
Copyright 2021 Vestil Manufacturing Corp. Page 6 of 10
c.
Align handrail tubes with handrail posts as shown below. Install a 3/8”-16 x 1.25” socket
cap screw (23307) through the bolt holes of aligned pipe ends (44-516-016) and wind
them into the lock nuts as shown in the diagrams below.
Handrail tubes with pipe ends
Handrail tubes fastened to posts
d.
Tighten all 4 socket cap screws to 15.7ft
∙lb
with your torque wrench.
e.
Tighten all 8 set screws to 2
3ft∙
lb.
3.
Install the handrail stabilizer bar (14-017-041) with 5/16” hardware
a.
Place the handrail stabilizer against the upper handrail posts. The top edge of the
stabilizer should contact the bottoms of the pipe ends.
b.
Install the
5
/
16
”-18 x 1
1
/
8
” U-bolts (42024) around the handrail posts and through the bolt
holes provided at both ends of the stabilizer bar.
c.
Install a 5/16” lock washer (33620) and a 5/16”-18 hex nut (36304) onto each arm of both
U-bolts. Tighten all 4 hex nuts to 8.8
ft∙lb.
d.
Install 5/16”-18 acorn nuts (37709) onto both legs of both U-bolts. Tighten each acorn nut
to 8.8ft∙lb.
Pipe end
Set screw
Lock nut Set screw
(37024) (25537)
Set screw
(25537)
Socket cap
screw (23307)
Handrail stabilizer bar (14-017-041)
U-bolt Lock Hex Acorn
nut nut nut
Stabilizer
bar
Acorn
nut
Hex nut Lock
nut
U-bolt
Handrail
tube