Update wing pivot extension tops, Update front extension tops – Great Plains 2007HD Update Installation User Manual
Page 43
Great Plains Manufacturing, Inc.
Update Implement Frame
39
05/25/2011
166-370M
Update Wing Pivot Extension Tops
Update Front Extension Tops
Start with the LH side. Remove and replace only the top
fasteners. Leave the cross-bolt and lower fasteners in
place.
Refer to Figure 64
229. Remove two sets:
804-023C WASHER LOCK SPRING 3/4 PLT
802-910C RHSNB 3/4-10 X 2 GR5 PLT
Save the washers
and nuts
are not re-used.
Refer to Figure 65 (which depicts the new square nuts
installed - this is not done until step 235)
230. Select one each new:
160-808D FRAME EXT 100 DEG GUSSET
160-810D FR EXT 100 DEG GUSSET REWORK
The shorter gusset
to the front. The longer
gusset
is to the wing inside.
231. Position the gussets. Slide them as far toward the
pivot extensions as allowed by the existing weld fil-
lets. Keep them in full contact with existing gussets.
Mark the wing for paint removal at all accessible
corners and joints of each gusset. Remove paint in
preparation for welding.
232. Tack weld the gussets in position.
233. Finish weld all around each gusset, using an
8 mm (
5
⁄
16
in) fillet. Keep the weld fillet small at the
joint plates, so that it won’t interfere with the new
square nuts
.
234. Clean off all weld splatter and slag. Paint the welded
area green.
235. Select two sets new:
802-064C HHCS 3/4-10X2 GR5
803-047C NUT SQ 3/4-10 PLT
and two saved:
804-023C WASHER LOCK SPRING 3/4 PLT
Add a lock washer
to each bolt
. Position the
square nuts
on the wing side of the joint plates.
Insert the bolts through the joint plates, from the
wing extension side, and thread into bolts. Tighten
bolts to Grade 5 torque specification.
236. Repeat step 229 through step 235 for the right wing
front.
Figure 64
Existing Top Front Hardware
Q0116
951
912
914
912
914
Note: The new square nuts
are NOT welded (or
tack-welded) onto the wing frame.
Figure 65
LH Wing Top Front Gussets
Q0126
951
912
914
951
943
951
943
951
943
951