Great Plains CTA4000 HD Operator Manual - Manual (Page 30)

26 CTA4000HD Great Plains Manufacturing, Inc.
160-037M 2012-11-28
Eyebolt Adjustment
Refer to Figure 28
Before using the implement, check that the opener
frames are level across the implement. When fully
raised, the top of the opener mounts
should clear the
bottom of the top frame tube by at least
1 ⁄
2
inch
(13 mm).
Adjust opener frames so all openers have the same
clearance. To raise or lower an opener frame, loosen jam
nut
on opener-lift cylinder and turn adjustment nut .
When openers are at correct height, retighten jam nut.
Repeat for each opener frame if necessary.
Scraper Installation
Optional disk scrapers are not factory installed. To install
them in the field:
1. Remove one or both disk blades to gain safe access
to the mount. Note the position of bushings and
spacers for correct re-assembly. See page 48.
Refer to Figure 29
2.
Position the inside scraper mount to the rear of
the seed firmer mount on the opener weldment.
Secure it with two HHCS
3 ⁄
8
-16 ×1 inch hex head
bolts, lock washers and nuts. Insert the bolts from
the front.
3. Position the scraper blade below and behind the
inside scraper mount , with the notch on top to
machine right.
Secure it loosely with one RHSNB
3 ⁄
8
-16 ×1 inch
round head square neck bolt, flat washer, lock
washer and nut.
4. Re-mount the removed disk blade.
5. Adjust the scraper blade per “Disk Scraper
Adjustments” on page 49.
Figure 28
Opener Height Eyebolt
17159
2
1
3
4
1
2
3 4
Figure 29
Scraper Installation
26460
2
1
3
1
2
3
1