User guide

Great Plains Mfg., Inc.
Installation Instructions 3
01/23/2008 401-463M
Refer to Figure 4
15. Insert the fan shutter control shaft in the shaft
holes.
16. Loosely install the
1
⁄
4
-20 x 1in bolt and washer
in the control’s slot.
17. Rotate the control to fully open (0 degrees on the
scale), and tighten the
1
⁄
4
-20 bolt.
Refer to Figure 5
18. Place the fan shutter disk on top of the shaft ,
and temporarily hold it there by inserting the two 10-
24 screws .
19. Using the #10 lock washers and 10-24 nuts ,
tighten the screws.
20. Slide the 6in air hose (not shown) back over the fan
outlet and tighten the clamp (not shown).
Figure 4
Insert Shaft
25138
12
20
19
12
19 20
Figure 5
Mount Shutter Disk
25139
13
12
14
14
16
15
16
15
13 12
13
16 15