Great Plains 2S-2600HDF Operator Manual v2 - Manual (Page 52)

48 2S-2600HD Table of Contents Index Great Plains Manufacturing, Inc.
195-069M Table of Contents Index 2014-02-03
Setting Drive Type
Refer to Figure 47
Drive Type is determined by the size (tooth count) of a
sprocket on the seed jackshaft
of each drill section. If
changed, the sprocket must be set identically on each
drill section (2 locations).
For correct Drive Type, refer to the charts in the Seed
Rate manual. The charts list Drive Types as 1, 2, 3 or 4.
Each Drive Type corresponds to a specific sized
sprocket, per the table at right, and Figure 48 below.
Changing Drive Type
1. Loosen top idler and slide idler well forward, par-
ticularly if changing to Drive Type 1.
2. Lift drive chain off sprocket currently in use.
3. Remove lynch pin and rearrange sprockets on
jackshaft . Sprocket corresponding to the required
Drive Type is second innermost. Make sure all 4
sprockets are accounted for when remounting them
on the shaft.
4. Remount drive chain on the second innermost (Drive
Type) sprocket.
5. Re-engage top idler and secure. Allow 1 ⁄
2
in (1.3cm)
slack in longest (top) span of chain.
6. Set the same Drive Type on both drill sections.
Figure 47
Drive Type 2 Configured
26481
Drive
Type
Sprocket Relative Speed
1 72 Tooth Slowest
2 34 Tooth 2.12 times faster than Type 1
3 23 Tooth 3.13 times faster than Type 1
4 14 Tooth 5.14 times faster than Type 1
1
4
2
3
5
1
Figure 48
Drive Type Chain Routing
15606
2
3
4 5
1