Hired-Hand Mega Flow SlantWall Fans: Butterfly Cone Fan Unassembled - Manual (Page 7)

Part No. 4801-5327 Rev 6/07 Mega-Flow Butterfly Cone - Unassembled Page 7 of 12
Figure 5 – Install Belt
Belt
Tensioner
Straight Edge
Fan Pulley
11. Refer to Detail A. Put 2-3 drops of thread locking compound on the
prop set screw. Use a 12 point socket to tighten the prop set screw.
Recommended torque of set screw is 110 in. lbs.
12. See Figure 3. Install the Motor using four 5/16" carriage bolts (1002-
2373) and four lock nuts (1001-1735). Tighten bolts securely. NOTE:
The motor pulley will be tightened in Step 14.
13. See Figure 4. Adjust the Belt Tensioner so the third mark on the
tensioner is in line with the vertical center of the post.
14. Align the Pulleys using a straight edge as shown in Figure 5. After the
pulleys are aligned, install belt (1022-3107) onto motor pulley, tension
pulley, and prop pulley. Recommended torque of the lock screws on the
Bearing Pillows are 65 in.-lbs. min, and 83 in.-lbs. max. After aligning
the pulley, tighten the Motor Pulley.
15. Carefully lift fan into wall.
16. Securely attach fan to wall with screws (1004-1386).
Figure 4 - Install Tensioner
Align third mark
with center of
post.
CAUTION!
Fan Is Heavy!
Do Not Attempt To Lift Fan Without Sufficient Workers And Equipment.