Great Plains 3PYP Operator Manual - Manual (Page 52)

48 3PYP Table of Contents Index Great Plains Manufacturing, Inc.
401-312M Table of Contents Index 2014-09-09
For All Ground Drive Adjustments
Steps:
1. Raise the planter and install lift-assist cylinder locks.
2. Rotate each gauge wheel. Check that seed meters,
seed tubes and drives are working properly and are
clear of debris and obstructions.
3. Check tire pressure, per “Tire Inflation Chart” on
page 125.
Drive Range Sprockets
1.
Obtain the sprocket pairing from the Seed Rate
Chart.
2. Loosen the bolt on the forward idler , and slide the
idler to the bottom of its track.
3. Remove the lynch pins from both the driving , and
driven shafts.
4. Remove the four alternate sprockets, and set them
on the tool bar.
5. Remove the chain and hang it behind a lynch pin on
the transmission.
6. Exchange the existing low range sprockets for those
called out in the Seed Rate Chart.
Equipment Damage/Misapplication Risks:
Make sure the correct sprockets are mounted on the driving or
driven shafts as called for by the Charts.
7. Slide the idler up, and tighten its bolt, allowing
1 ⁄
4
inch slack in the longest chain span.
8. Store the four alternate sprockets on the shafts and
re-pin.
The 3PYP must be unfolded, and the tractor or planter parked,
before making any of these adjustments.
Equipment Damage/Misapplication Risks:
Any setup and adjustments must be made identically on each
of the two gauge wheel drives. If there are any differences,
there will be excess clutch wear, and unpredictable seed rate
results.
Figure 47
Lower Range Sprockets
25260
3
1
2 Driving
Driven
1
2
3
1