Great Plains 2S-2600HDF Operator Manual v1 - Manual (Page 65)

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 61
2014-05-16 Table of Contents Index 195-440M
Marker Chain Adjustment
There are two basic adjustments needed on the marker
chain, especially in new installation. These adjustments
are interrelated and should be done in the following
order:
Refer to Figure 66
Marker Lifting Slack
1.
Start with the marker in the unfolded position.
2. Loosen jam nuts . Back the full threaded
adjustment bolt toward nuts until the head extends
as little as possible.
3. Slowly fold the marker, observing the motion of the
disk.
If the marker disk slides across the ground more
than about a foot (30cm) before the chain and
linkage lifts it up, the chain is too long. Shorten the
chain by moving the clevis
one or two links
inboard from the end of the chain. Check the
adjustment by repeating the folding process.
If the chain is too short when the marker is unfolded,
it will prevent the end of the marker from dropping
down to follow a depression in the field. Correct this
condition by moving the utility clevis
one or two
links toward the end of the chain to make it longer.
Marker Folding Slack
1.
After the adjustments in step one have been com-
pleted, fold the marker.
2. The full threaded adjustment bolt is provided to
take the slack out of the chain while the marker is in
the folded position. Fold the marker and extend this
bolt until the slack is out of the chain.
3. Lock the bolt in this position by tightening the jam
nuts
on either side of upright channel.
Marker Transport Carrier
When marker is folded, the second section should be
centered in transport carrier saddle and be parallel with
top of drill box.
Refer to Figure 67
To adjust height of saddle, loosen 1 ⁄
2
x2 inch U-bolts
that hold carrier tube to mounting bracket. Slide carrier
tube up or down as needed.
Figure 66
Marker Chain
15669
1
2
3
1
2
3
3
Figure 67
Marker Transport Carrier
15632
1
2
1
1