Grain Systems PNEG-707GSI - Manual (Page 66)

5. Plenum Roof
66 PNEG-707 12', 18', 24' and 30' GSI Commercial Tower Dryer
Tighten remaining bolts on plenum roof
Figure 5AW Tightening inside top wall sheets.
(Inspect all when completed. Access is restricted
after this point.)
Figure 5AX Hand tightening plenum roof rafters,
wall sheets, eave channels, cross members, etc.
Figure 5AY Hand tightening rafter crossmembers.
Figure 5AZ Interior View after lifting dryer -
Completed plenum roof.