Rockshaft arm pin retainers, Lower vertical link pins, Main arm pivot pins – Great Plains Verti-Till Field Update User Manual
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Verti-Till Field Update
Great Plains Manufacturing, Inc.
596-186M
08/06/2007
Rockshaft Arm Pin Retainers
Refer to Figure 9 and Figure 10 (showing right side only)
Replace the retaining bolts and nuts of the four pins in
each of two floating axle arms
Lower Vertical Link Pins
These smaller, forward pins connect the arms to the tri-
angular crank (not shown).
18. Remove two sets of existing:
HHCS 3/8-16X2 1/2 GR5
NUT LOCK 3/8-16 PLT
These parts are not re-used.
19. Select two sets of new:
802-849C HHCS 3/8-16X3 1/4 GR8
803-013C NUT LOCK 3/8-16 PLT
Install the bolts in the pins.
Main Arm Pivot Pins
Refer to Figure 10 (showing right side only)
These larger, aft pins connect the arm
to the frame.
20. Remove two sets of existing:
HHCS 3/8-16X3 1/4 GR5
NUT LOCK 3/8-16 PLT
These parts are not re-used.
21. Select two sets of new:
802-850C HHCS 3/8-16X4 GR8
803-013C NUT LOCK 3/8-16 PLT
Install the bolts in the pins.
U
D
F
B
L
R
Figure 9
Rockshaft to Frame - Link
21559
8
8
Inspect bolt heads before replacing.
If already grade 8, skip to next implement location.
U
D
F
B
L
R
Figure 10
Rockshaft to Frame - Pivot
21559
Inspect bolt heads before replacing.
If already grade 8, skip to next implement location.
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