Grain Systems PNEG-707GSI - Manual (Page 55)

5. Plenum Roof
PNEG-707 12', 18', 24' and 30' GSI Commercial Tower Dryer 55
3. Test fit. Install rings of rolled plenum channels to wall sheets so closely that fingers will not fit
between them.
Figure 5R Rolled Plenum Channel
4. After entire ring of rolled plenum channels is installed to this section of the dryer, tighten bolts.
If gap/space is observed between sheet and channel (post tightening) drill holes and use
5/16" x 3/4" galvanized bolts and nuts to close the space. (This will prevent flexing movement
resulting in sheet tears.)
Figure 5S Installing rolled plenum channel
to inside top wall sheets.
Figure 5T Plenum channel splice installed.
Figure 5U C-Clamp and alignment punches (5/8" and larger).