Great Plains ADC1150 Operator Manual - Manual (Page 48)

46
Section 4 Adjustments
Model 1150 1995 - 1997 167-058M 7/28/10
Great Plains Mfg., Inc.
Section 4
Adjustments
Setting the Drill Seeding Rate
!
CAUTION!
Obey manufacturer/grower’s reccomendations for safety equip-
ment when using treated seeds.
Three settings control the seed rate, they are:
•
Metering device driver/driven gear set orientation
•
Gearbox settings
•
Speed change sprocket orientation
When setting the seed rate make sure that all three set-
tings are properly made.
Tools required:
•
Two 1 1/8” wrenches
1. Check the seed rate charts, starting on page 49, or the
seed rate chart located on the bin, for desired settings.
Not all ratios are on the chart on the bin. Consult this
manual for all possible settings.
2. Set driver/driven gears as indicated under the “Gears”
column in the seed rate chart. The driver gear in on
the front upper shaft. The driven gear is on the rear
lower shaft. Remove the lynch pins and adjust gear
position as needed, then replace the pins, refer to Fig-
ure 4-1.
3. Set the gearbox levers to the required position listed
under the Gearbox Levers column in the Seed Rate
Chart.
IMPORTANT: Always disengage the gearbox clutch han-
dle before attempting to shift gears. Failure to do so will re-
sult in damage to the gearbox.
Disengage the gearbox clutch handle by rotating the
handle to point down. The handle should move out of
the gearbox slightly as it is rotated, refer to Figure 4-2.
Move shift levers until they are in detents next to ap-
propriate letter or number. Shift levers should move
freely, refer to Figure 4-3.
NOTE: Seeding Rate Charts on the drill and in this
manual are derived from cleaned, untreated seed of
average size and test weight. The rates are based on
16.5 x 16.1 10-ply tubeless tires. Many factors will af-
fect seeding rate including foreign material, seed
treatment, seed size, and test weight. Minor adjust-
ments will likely be needed to compensate for these
factors.
Driver/Driven Gears
Figure 4-1
14433
Driven
Driver
Clutch Handle Engagement
Figure 4-2
14451
Gearbox Shift Levers
Figure 4-3
14434