GREAT PLAINS YP-425, Operator'S Manual

Page: 126 / 134

2018-07-23 Table of Contents Index 401-652M
YP-425, 625, 825, & 1025-A3P Table of Contents Index Appendix C - Initial Setup 122
122-278S Scraper Installation
Optional carbide disc scrapers are not factory installed.
Start with row 1 (left-most row unit).

If a Keeton seed firmer is also installed, see the Parts
Manual for assembly details.

This scraper is not compatible with Seed-Lok
®
.
Refer to Figure 110 and Figure 111
1. Remove one or both opener disc blades to gain safe
access to the mount
. Note the position of
bushings and spacers for correct re-assembly
(page 59).
2. Select one each:
8 02-024 C HH CS 3/ 8 -16X3 GR5
129BXT 8 24 BRA C KET FOR 8 90-929 C FIRMER
122-177D 10HD25 IN S IDE SC RAPER MNT TUBE
Insert the bolt , from the rear, through the lowest
hole of the bracket . Place the tube over the
bolt.
3. Select one scraper set:
8 90-92 8C 25 S ER AIR DE S IGN IN SC RAPER
Place the shoulder washer on bolt with the
larger diameter to the rear (toward bolt head). Place
the left scraper blade
on the washer, followed by
the right scraper blade .
4. Select one each:
8 04-011 C WA S HER FLAT 3/ 8 U SS PLT
8 04-013 C WA S HER LO C K S PRING 3/ 8 PLT
8 03-014 C NUT HEX 3/ 8 -16 PLT
Place the flat washer on the bolt , followed by
the lock washer and nut . Tighten bolt and nut
to
3
/
8
-16 GR5 torque spec. Make sure blades pivot
freely.
5. Select the scraper spring . Connect the spring
between the blades, using the small top holes.
6. Select two sets:
8 02-172 C HH CS 5/16-1 8 X2 1/2 GR5
8 03-043 C NUT HEX WHIZ 5/16-1 8 PLT
Insert the scraper assembly between the middle
four lower square holes of the opener frame.
Secure with bolts and whiz nuts .
7. Re-mount the removed disc blade.
Figure 109
Scraper Pre-Assembly
29227
85
U
D
R
L
F
B
84
83
91
2
5
4
3
89
90
87
1
85
84
83
85
84 83
91
2 85
3
4
U
D
R
L
F
B
1
6
88
86
7
Figure 110
Scraper Installation
29228
89
90
87
89 85
90 87
5
86
88
6
7
86 88