Grain Systems Bin Accessories PNEG-1655 - Manual (Page 14)

14 PNEG-1655 VTDL-135' - 8' x 9' Door Assembly w/ Manway
5. Assembly Instructions
Written instructions for installation of a VTDL-135' - 8' x 9' D large vehicle traffic door in
135' diameter, externally stiffened tanks.
Prior to door installation, tank should be fully erected and anchored. The VTDL-135' - 8' x 9' D 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 tank is emptied.
3. Tank erection will be done as normal until the fifth ring from the bottom is 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 Page 17 . At door location, install special punched, special length door sheets at the
correct position as shown on Page 17 . Use two (2) non-laminated sidewall sheets (minimum
10 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.
(See Page 17.) Standard base stiffener
weldments will be used in these locations after door frame is completely installed. Anchor tank
securely before installing door.
4. When tank is properly anchored, remove filler sheets. Be sure the sidewall is installed as shown
on Page 17 .
5. Review Pages 19 and 30 to identify door frame and outer cover parts.
6. Place threshold weldments (VTDL-0582) in door opening between sidewall sheets. Install left and
right column weldments 135' (VTDL-0564 and VTDL-0565) as shown on Page 20 . Fasten column
weldments to sidewall sheets with 7/16" x 2-1/2" bolts (S-9444) and 7/16" recessed nut (S-8479).
Do not tighten bolts at this time. Insert corrugated sealing strips into the outer edge of the sidewall
sheets and the inner edge of the sidewall attachment plates. Caulk around seal strip as well. Align
edge of column base plate with edge of threshold weldment. Also the door panel attachment strips
of the columns and threshold must be aligned.
(See Pages 20 and 22.) The columns and threshold
weldments will be anchored with 3/4" epoxy type anchors or by field welding to tunnel girder. The
column weldments must be field welded to the threshold weldments. Do not anchor or weld until door
is fully installed.
7. Install header beam weldment (VTDL-0560) 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
1" x 3-1/2" grade 8 bolts (S-7622), 1" washers (S-7623) and 1" nuts (S-240). See detail A
on Page 22 . 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 7/16" x 2" bolts (S-10114). Do not
tighten bolts until door panels are installed.