Great Plains V300F Assembly Instructions - Manual (Page 4)

Great Plains Mfg., Inc.
4 V300 Pivot Lock Upgrade
148-772M 03/12/2007
Weld Ear Mount Extensions
Refer to Figure 5
Note: The channel between the ears/extensions must
be the same width as the existing ears , to allow
insertion and pivoting of the new pivot lock. The
channel must also be free of weld fillets and splat-
ter.
You may want to clamp the old pivot lock (plus a
shim) in the gap to keep the gap clear and sized,
as well as to keep each new ear extension
aligned with its old ear.
14. Remove paint from the mating surfaces , , of
an existing short triangular ear , and from 1cm at
the edges along the intended weld line .
15. Clamp an ear extension to an existing short tri-
angular ear .
16. Select two each:
PIN WIRE SNAP LOCK 1/2 X 3 1/2, or
805-232C PIN WIRE SNAP LOCK 1/2 X 3 1/2
17. Insert the pin through both ear extensions to assure
hole alignment during welding.
18. Tack weld each new ear at the top/front and bot-
tom/rear end. Allow to cool and check alignment.
Note: Do not weld on or along the inside mating lines
between the old ear and ear extension.
19. Make a 1cm (
3 ⁄
8
in) finish weld along the outside
mating line between the old ear and extension.
20. Make a 1cm (
3 ⁄
8
in) fillet weld along the top/front
and bottom/rear ends.
21. Repeat step 14 through step 20 for all three addi-
tional ear extensions.
22. Sand the weld areas and apply fresh paint.
Install Pivot Stop Face Plates
Refer to Figure 6
23. Inspect the rear sub-frame pivot assembly (just aft
of the hitch sub-frame just worked on). Note whether
or not the pivot stop plate
has a gusset plate
present. Each case is illustrated separately in the
instructions that follow.
24. Remove the paint from the top edge of the stop
plate , from an area 6cm on either side of a point
11.5cm from the outside edge of the plate (the area
to be covered by the stop face plate extension
shown in Figure 7). Also remove paint on the front
and back of the plate within 1cm of that same area.
Figure 5
Align Extensions & Weld
26178
3
4
14
2
1
5
U
D
F
B
L
R
1
2
14
3 4 5
2
4
14
2
57
18
3
5
Figure 6
Sub-Frame Pivot Assembly
26179
26180
1
2
U
D
L
R
B
F
3
5
1 2
1
15