Great Plains 3SF45 Operator Manual - Manual (Page 43)

4/8/99
9-1
170-062M
TROUBLE SHOOTING
PROBLEM SOLUTION
1. Uneven seed spacing or uneven a. Check for plugging in seed cup.
stand b. Check to see if seed tubes are plugged.
c. Reduce ground speed.
d. Check opener disks to see they turn freely.
e. Use faster drive speed and close feed cup flutes to a more narrow
position.
f. Spring pressure on openers could be improperly adjusted causing
opener to not penetrate low spots.
g. Check for trash or mud build-up on Seed-Lok Wheel.
2. Opener disks not turning freely a. Check for trash or mud build-up on disk scraper. Readjust scraper.
b. Check to see if scraper is adjusted too tight and is restricting disk
movement.
c. Check disk bearings.
d. Check opener frame for possible damage.
e. If opener disks turn freely by hand but not in field, lessen down
pressure on disk opener.
f. Check press wheel adjustment for seeding depth.
3. Actual seeding rate is different a. Check tire pressure. See "
Tire Inflation Chart
" on page 1-5.
b. Check gauge wheel size. Proper size is 9.5L x 15.
c. Seed treatment will affect seeding rate if the chemicals build up in
seed cup. Unless cleaned regularly, this build up can cause
breakage of the feed shaft.
d. Check speed change box setting.
e. See Operator’s Manual for instructions on calculating seed rate.
4. Excessive seed cracking a. Use slower drive speed and open flutes in feed cup to a wider position.
b. Position feed cup handles to a lower notch.
5. Acremeter doesn’t measure a. Check tire pressure. See " Tire Inflation Chart " on page 1-5.
accurately b. Check end gauge wheel tire size. Proper size is 9.5L x 15.
c. Check planting operation for excessive overlap or gaps between
passes.
d. Loose soil conditions and slippage will cause variations in acres
registered.
e. To check accuracy of acremeter. See " Seeding Adjustments " on
page 5-1.
f. Check to be sure your acremeter is for your width of drill.
6. Uneven seeding depth a. See section on depth adjustments.
b. See "
Tractor Draw Bar Hook-Up
" on page 2-3, and "
Pull Bar
Adjustments " on page 6-5.
7. Press Wheel not compacting the a. Reset press wheel depth, see seeding and press wheel
soil as desired adjustments sections.
b. Readjust press wheel depth to match coulter depth.
c. Down pressure on disk openers is not enough.
8. Grain box not emptying evenly a. Certain models do not have the same number of seed cups be-
tween each divider of bulkhead. The section with the larger
number of cups will empty sooner.
b. Feed cups close to the ends of box tend to empty sooner due to
amount of seed available.
c. Check adjustment levers on each box to see that they are set on
the same indicator number.