TM
Model 3000M0188-01
Rev. 9/17 7-21
Lubrication and Maintenance
15" SEED OPENER DISC BLADE/
BEARING ASSEMBLY
Approximately 1" ± ½" (3 ± .5 cm) of blade-to-blade contact should be maintained to properly open and form seed
trench. As blade diameter decreases due to wear, it is necessary to relocate machine bushings from inside to outside to
maintain 1" ± ½" (3 ± .5 cm) of contact.
NOTE: Proper blade clearance is critical. Blades should have 1" ± ½" (3 ± .5 cm) contact in this area. When
blades are turned by hand in opposite directions against each other, there should be only light resistance to
turning. Re-adjust blade scraper if necessary to center it between the blades.
NOTE: If proper blade-to-blade contact cannot be maintained after relocating machine bushings or if blade
diameter wears below 14½" (37 cm), blades should be replaced.
REPLACE DISC BLADE/BEARING ASSEMBLY
1. Remove gauge wheel.
2. Remove scraper.
3. Remove bearing dust cap.
4.
Remove cap screw, washer and disc blade/bearing assembly.
Machine bushings between shank and disc blade are used to
maintain approximate 1" ± ½" (3 ± .5 cm) of blade-to-blade contact.
5. Install machine bushing(s), new disc blade bearing assembly,
washer and cap screw. Torque "-11 Grade 5 cap screw to value
shown in “Torque Values Chart”.
NOTE: Replace disc blades only with disc blades of equal thickness.
6. Replace bearing dust cap.
7. Install scraper.
8. Install gauge wheel. It may be necessary to replace bearing only if there is excessive endplay or if bearing sounds
or feels rough when disc blade is rotated.
Approximately
1" ± ½" (3 ± .5 cm) of
blade-to-blade contact.
Ecessive blade contact may result
in premature disc opener bearing/
hub failures and excessive wear on
seed tube guard/inner scraper. When
properly adjusted, if one blade is held
in fixed position, opposite blade should
rotate with less than 5 pounds force (22
newtons) at outer edge of blade.
NOTICE
Left hand side of opener uses a left
hand threaded cap screw. DO NOT OVER
TIGHTEN. Damage to shank threads
require replacement of row unit shank
assembly.
NOTICE
To Next Page
Loading...
