198934 Roof Stairs INSTALLATION INSTRUCTIONS.pdf - Westeel
198934 Roof Stairs INSTALLATION INSTRUCTIONS.pdf - Westeel
198934 Roof Stairs INSTALLATION INSTRUCTIONS.pdf - Westeel
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6. Attach four more 1” diameter support arms to the second vertical support tube in a similar<br />
manner to # 2 above. Using these as guides, position and secure the third and last<br />
vertical support tube as per # 3 above. Use the last support arm to brace the third<br />
vertical support tube to the roof rib as per # 2 above.<br />
7. Prevent the support arm clips from sliding<br />
down the vertical support tubes by<br />
securing with the self drilling screws<br />
provided (900461).<br />
SELF DRILLING SCREW<br />
(900461) SECURES SUPPORT<br />
ARM CLIP<br />
Figure 38<br />
8. Secure the plastic caps (234559) to the vertical support arm tubes.<br />
<strong>Roof</strong> Stair Block-Off Package Hardware Usage (Note: Required hardware also supplied with<br />
<strong>Roof</strong> Stair Packages):<br />
All <strong>Roof</strong> Stair Block-Off Package connections are made using 3/8” x 1” bolts and 3/8” nuts<br />
except for the following connections.<br />
− Vertical Support Tubes are secured to the grain bin wall sheets using 3/8” x 2 ½” bolts<br />
and nuts<br />
− Secure middle Vertical Support Tube to the bottom Stair Tread using a 3/8” x 4 ½” fully<br />
threaded bolt and triple nutting as shown in the instructions.<br />
− Prevent the support arms from sliding down by securing the support arm clips with self<br />
drilling screws.<br />
<strong>Roof</strong> Stair Block-Off Package (234049)<br />
Part Number Description Quantity<br />
234069 Vertical Support Tube 2<br />
234504 Support Arms 8<br />
234517 Support Arm Clips 13<br />
234518 Support Arm Bracket 2<br />
Page 34
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