Great Plains 606NT Operator Manual - Manual (Page 47)

Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 43
2014-02-10 Table of Contents Index 151-061M
Drive Idler Adjustment (605NT or 606NT)
Two idler sprockets are located inside the left hand
gauge wheel arm. They should be readjusted after the
first 100 acres (40 hectares) of drill use. From then on,
readjust at the beginning of each season.
Refer to Figure 43
1.
Loosen jam nut .
2. Move front idler sprocket on top of chain, tightening
chain, by screwing in adjustment stud
.
3. Retighten jam nut to maintain idler position.
Note: Do not over-tighten stud. Insufficient slack causes
excessive wear and premature chain failure.
Seed Clean-Out
Main Box Clean-Out
Refer to Figure 44, which depicts the seed cup door handle
in a normal operating position
.
1. Set the Seed Rate Handle to zero (0). This moves
the seed cup sprockets out of the seed path.
2. Position a tarp or bucket under each row or set of
rows to be cleaned out.
3. At the seed cup for that row, pull the door handle
out of the operating detent range, and swing it down
to position
.
4. Open the main seed box and use a small brush to
sweep seed toward seed cups set to clean-out. If
seed does not flow freely, inspect seed cup, hose
and seed tubes for obstructions.
5. If a vacuum cleaner is available, use it to remove
residual matter.
It is not necessary to operate the seed meter drive shaft
for clean-out. With the Seed Rate set to zero, nothing
moves inside the seed cups; however, an inspection of
the flutes for excess wear and damage does require
shaft rotation.
Set the Seed Rate Handle to 100. Raise and lock-up the
drill. Turn the seed meter jackshaft with the calibration
crank, while another person inspects the flutes from the
open seed boxes.
Figure 43
Gauge Wheel Idler Adjustment
18481
1
2
1
2
Figure 44
Seed Cup Clean-Out
26211
1
2
1
1
2