Grain Systems Bin Accessories PNEG-1623 - Manual (Page 27)

8. Manway Handrail
PNEG-1623 Roof Stairs and Handrail Assembly 27
72'-135' w/ Obround Manway
( Refer to Page 28 and Page 29 for details.)
1. Loosely assemble handrail posts (LDR-4392) to post attach weld (LDR-4228) using 5/16" hardware.
2. Loosely attach corner insert weldment (LDR-4390) to handrail posts.
3. Place pipe handrails (LDR-4398) between the corner insert weldments. After the correct spacing is
found, secure with 1/4" self-drilling screws. (See Detail D on Page 29 .)
4. Place upper and lower handrail weldments (LDR-4396 and LDR-4394) onto corner insert weld and
attach on the other end to the three (3) step bottom stair section handrails. Field drilling attachment
holes and cutting of the pipe may be required to secure handrail weldments to stair section
weldment. Secure on the other end with 1/4" self-drilling screws to the corner insert weldments.
5. After the spans are covered and the handrails are secured, the three (3) post attach welds can be
field drilled to the roof rib as shown in Detail C on Page 29 . The connecting band (LDR-4388) and
the toe board (LDR-4400) can now be placed and field drilled where necessary. (Refer to Detail C
and Detail D
on Page 29 .)
6. Tighten all hardware after it is loosely assembled. NOTE: 5/16" Hardware is used at all connections
and a 5/16" washer must be used for all slotted connections.