Great Plains Verti-Till Field Update - Manual (Page 8)

8 Verti-Till Field Update Great Plains Manufacturing, Inc.
596-186M 08/06/2007
Transport Lift Cylinder Pins: SN1063+
If the implement is serial number 1062 or lower, skip to
“Update Lift Cylinders” on page 8. The upper pins are
entirely replaced when the cylinder is replaced.
Refer to Figure 13
Do not remove the pin
.
26. Remove four sets of existing:
HHCS 3/8-16X2 1/2 GR5
NUT LOCK 3/8-16 PLT
These parts are not re-used.
27. Select four 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.
Update Lift Cylinders
Disconnect Transport Rod End
Refer to Figure 14
The rod ends of these cylinders are disconnected to
upgrade the pinning method. They are also upgraded
later with a clevis replacement or complete cylinder
replacement.
Starting with the left arm:
28. Remove the existing:
PIN COTTER 3/16 X 2,
WASHER FLAT 1 SAE (may be 0 or 2), and;
PIN CLEVIS 1 X 3 3/16 LG.
These parts are not re-used.
29. Repeat step 28 for the right arm.
30. Activate the tractor hydraulics and retract the trans-
port lift cylinders. Set circuit to Float to relieve pres-
sure.
Figure 13
Left Lift Cylinder, Upper Pin
27046
1
52
36
55 38
U
D
B
F
R
L
Inspect bolt heads before replacing.
If already grade 8, skip to next implement location.
1
52
55
36
38
Figure 14
Left Lift Cylinder, Lower
27046
1
58
56
57
56
U
D
F
B
L
R
57
56
58