Great Plains YP825A Operator Manual - Manual (Page 162)

158 YP425A, YP625A and YP825A Table of Contents Index Great Plains Manufacturing, Inc.
401-651M Table of Contents Index 2014-08-15
Install Press Wheel Assemblies
To meet highway clearance requirements, press wheel
arms and wheels may not be factory-installed.
Refer to Figure 139
22. Remove and save the
1 ⁄
2
-13x1in 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.
23. Remove and save the
1 ⁄
2
-13x1
1 ⁄
2
in hex head bolt ,
washer, and eccentric adjuster nut.
24. 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
-13x1in hex head bolt and
washer .
25. Loosely screw in the
1 ⁄
2
-13x1
1 ⁄
2
in 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 134 on page 155
26. If the ground drive arm is still tied up for shipping,
carefully lower it to the ground per the instructions on
page 155. Observe all precautions from page 155.
Refer to Figure 140
27. 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
inches
± 1 ⁄
16
inch (43.7 to 44.0 cm)
28. Remove and save all pins at clevis and trunnion
ends of spring rod assembly.
29. 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
30. 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 139
25AP Press Wheel Assembly
25383
1
2 4
3
2 3
4
2
4
Figure 140
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