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198934 Roof Stairs INSTALLATION INSTRUCTIONS.pdf - Westeel

198934 Roof Stairs INSTALLATION INSTRUCTIONS.pdf - Westeel

3. Also bolt on the 1

3. Also bolt on the 1 ¼” diameter, longer, lower support rail (234100) between the pass through rail and the vertical support tube, again using support arm clips. Position the lower rail lower down on the pass through rail, below the bend in the pass through rail (Figure 16). 4. When attaching the top support rail to the pass through rail, use the bolt and nut to secure the end link on the second warning chain (234101). Hook the other end of the chain to a mating hole in the vertical hand rail support across the opening. SECOND WARNING CHAIN (234101) HARDWARE ON UPPER SUPPORT ARM CLIP USED TO SECURE WARNING CHAIN Figure 18 Figure 17 5. Prevent the support arm clips from sliding down the pass through rail tube and the vertical support tube by securing with the self drilling screws provided (900461). SELF DRILLING SCREW (900461) SECURES SUPPORT ARM CLIP. Figure 19 Page 22

6. Attach the final support arm (234504) to the vertical support tube, and to the nearest roof rib, as shown, utilizing the support arm clip and support arm bracket, as shown. Drill into, and secure to the roof rib as required. Figure 20 USE SUPPORT ARM AS BRACE TO SECURE VERTICAL SUPPORT TUBE. ROOF STAIR HARDWARE USAGE All roof stair and related connections are made using 3/8" x 1" bolts and 3/8" nuts, except for the following: - Clamps built into Top Cage Hoops secure using 3/8" x 1 ½" bolts - Pass Through Rails secure to sidewall ladder using 3/8" x 2 ½" bolts (these are supplied with the ladder) - Vertical Support Tube secures to the wall sheet using 3/8" x 2 ½" bolts - Pass Through Rails secure to front lip of stair tread using 3/8" x 4 ½" fully threaded bolts and 3 - 3/8" nuts at each location - For stability, "Z" supports secure to roof ribs using 3/8" x 4 ½" fully threaded bolts and 3 - 3/8" nuts at each location - To keep the horizontally placed support arms from slipping down the vertical supports, secure using the #10 x ¾" self drilling screw 234085 - Roof Stairs Hardware Package Part Number Description Quantity 234943 Bolts - 3/8" x 1" (bag of 50) 4 193797 Bolts - 3/8" x 1 1/2" 5 150517 Bolts - 3/8" x 2 1/2" 7 150475 Bolts - 3/8" x 4 1/2" 18 235951 Nuts - 3/8" (bag of 100) 2 900461 Self Drill Screws - #10 x 3/4" 14 234517 Support Arm Clip 7 234559 Pipe Cap 3 234101 Chain 2 198934 Manual - WC Roof Stairs1 Page 23

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