Operating instructions

112 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc.
401-652M Table of Contents Index 2015-01-26
Install Press Wheel Assemblies
To meet highway clearance requirements, press wheel
arms and wheels may not be factory-installed.
Refer to Figure 98
4. Remove and save the
1
⁄
2
-13x1 inch hex head bolt
and washer at the back of an incomplete row
unit .
There are four bolts at this location. Remove only the hex head
bolts. Do not loosen or remove the square head bolts forward.
5. Remove and save the
1
⁄
2
-13×1
1
⁄
2
inch hex head
bolt , washer, and eccentric adjuster nut.
6. Align the
1
⁄
2
inch holes in the press wheel assembly
with the
1
⁄
2
-13 tapped holes in the row unit, loosely
assemble with the
1
⁄
2
-13×1 inch hex head bolt and
washer .
7. Loosely screw in the
1
⁄
2
-13×1
1
⁄
2
inch hex head
bolt , washer, and eccentric adjuster nut. Rotate
the adjuster to visually align the press wheel
assembly with the row unit, and tight the adjust and
both bolts.
Engage Ground Drive Spring
Refer to Figure 99
8. Select one new:
121-763S OPENER SPRING ROD ASSY. SHRT.
Check that the overall length , from clevis to
trunnion, center-line to center-line, with pin holes
aligned, is:
17
1
⁄
4
inch ±
1
⁄
16
inch (43.7 to 44.0 cm)
9. Remove and save all pins at clevis and trunnion
ends of spring rod assembly.
10. Secure the clevis end of the spring assembly to the
arm lug , using one each:
805-127C PIN CLEVIS 1/2 X 1 3/4 and
805-064C PIN COTTER 7/64 X 1 LONG
11. Secure the trunnion end of the spring assembly to
the upper trunnion , using one each:
805-235C PIN CLEVIS 1/2 X 5 PLATED and
805-064C PIN COTTER 7/64 X 1 LONG
Figure 98
25AP Press Wheel Assembly
25383
1
2
4
3
2
3
4
2
4
Figure 99
Ground Drive Spring Rod
31038
6
5
R
L
F
B
57
59
58
60
58
7
57
5
5
6
59
58
7
60
58