Great Plains YP825A3P Operator Manual - Manual (Page 120)

116 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc.
401-652M Table of Contents Index 2013-05-28
122-278S Scraper Installation
Optional carbide disc scrapers are not factory installed.
Start with row 1 (left-most row unit).
Note: If a Keeton seed firmer is also installed, see the
Parts Manual for assembly details.
Note: This scraper is not compatible with Seed-Lok
®
.
Refer to Figure 103 and Figure 104
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 52).
2. Select one each:
802-024C HHCS 3/8-16X3 GR5
129BXT824 BRACKET FOR 890-929C FIRMER
122-177D 10HD25 INSIDE SCRAPER 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:
890-928C 25 SER AIR DESIGN IN SCRAPER
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:
804-011C WASHER FLAT 3/8 USS PLT
804-013C WASHER LOCK SPRING 3/8 PLT
803-014C 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
-16GR5 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:
802-172C HHCS 5/16-18X2 1/2 GR5
803-043C NUT HEX WHIZ 5/16-18 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.
Callout, Part & Description cross-references are drawn
from a Reference Page.
Figure 103
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 104
Scraper Installation
29228
89
90
87
89 85
90 87
5
86
88
6
7
86 88