Assembly instructions, Chapter 4 assembly instructions – Grain Systems Bin Accessories PNEG-1742 User Manual
Page 13
PNEG-1742 VTDL-48 - 8 x 9 Door Assembly
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4. Assembly Instructions
Installation of the Large Vehicle Traffic Door in 48' diameter, externally stiffened tanks.
Prior to door installation, the tank should be fully erected and anchored. The SCTDL 48-8 x 9 Door is to
be installed in the bottom 4 rings of the tank. Adequate provisions should be made for door installation.
A list of necessary tools and equipment is attached. Also, some field fabrication and welding will
be necessary.
1. The VTDL door is to be installed in the bottom 4 rings of the tank.
2. The door must be placed near an intermediate discharge well such that grain will clear away from the
door panels when the tank is emptied. Installation of a standard 1 ring access door or 2 ring door in
addition to the VTDL door is recommended.
3. Tank erection will be constructed as normal until the fifth
ring from the bottom to be installed. The
fifth ring will be installed as normal except that the orientation of the sidewall sheets should match
the sidewall layout shown on
. At the door location, install special punched, special length
door sheets at the correct position as shown on
. Use two (2) non-laminated sidewall sheets
(minimum 12 gauge) per ring without caulk to temporarily complete the ring. Use only horizontal
seam bolts to connect the filler sheets to the door sheets. Continue installing the sidewall as normal
except for installing the special door sheets and temporary sheets. These sheets are used as filler
sheets to keep the tank round until fully erected. They will be removed prior to door installation. Also,
four (4) sets of stiffeners should be omitted at the door location.
Standard base
stiffener weldments will be used in these locations after the door frame is completely installed.
Anchor the tank securely before installing the door.
4. When the tank is properly anchored, remove the filler sheets. Be sure the sidewall is installed as
.
to identify the door frame and door panel parts.
6. Place threshold weldments (VTDL-0547 and VTDL-0548) in the door opening between the
sidewall sheets. Install the left and right column weldments (VTDL-0537 and VTDL-0540) as
shown on
. Fasten column weldments to sidewall sheets with 3/8" x 1" bolts (S-455) and
3/8" nuts (S-456).
NOTE: Bolt size may change slightly with gauge changes.
Use a flat washer on the inside of this connection. Bolt heads with a sealing washer will be used on
the outside. Do not tighten bolts at this time. Insert corrugated sealing strips onto the outer edge
of the sidewall sheets and the inner edge of the sidewall attachment plates. Caulk around the seal
strip as well. Align the edge of the column base plate with the edge of the threshold weldment. Also,
the door panel attachment strips of the columns and threshold must be aligned.
The columns and threshold weldments will be anchored with 3/4" epoxy type anchors or by
field welding to the tunnel girder. The column weldments must be field welded to the threshold
weldments. Do not anchor or weld until the door is fully installed.
7. Install header beam weldments (VTDL-0534) on the top of the column weldments. The header
beam weldment will slide onto the top of the columns from the inside of the tank. Fasten loosely with
3/4" x 2-1/2" grade 8 bolts (S-7640), 3/4" washers (S-866) and 3/4" nuts (S-234). See detail A
on
. Be sure that the sidewall attachment plate holes of the header and column are aligned.
Attach the sidewall of the fifth ring to the header seal strip with 3/8" x 1" bolts. Use flat washers on
the inside of this connection. Do not tighten bolts until door panels are installed.