Great Plains 3S-3000HDF Operator Manual v1 - Manual (Page 72)

68 3S-3000/F/HD/HDF Table of Contents Index Great Plains Manufacturing, Inc.
195-441M Table of Contents Index 2014-07-01
Small Seeds Box Clean-Out
1. Open lid of each box and scoop out as much seed as
possible.
2. To recover remaining seed, place a collection tarp
under the small seeds tubes at the openers.
3. Raise drill.
4. Set Small Seeds rate handles to 100.
5. Rotate gauge wheels until no seed flows.
6. If a vacuum cleaner is available, remove any residual
seed from top of meters.
Chain Maintenance
Inspect and lubricate chains regularly. The slack of new
chains tends to increase during the first few hours of
operation due to seating.
Chain Slack
Check slack within the first 8 hours of operation and
tighten idlers as necessary.
Refer to Figure 69, which, for clarity, greatly exaggerates
slack, and omits the idlers.
1.
Measure the span for allowable slack:
Locate the longest span of each chain (usually the
span which does not run through the idlers).
2. Determine the ideal slack:
Long chains (over 36in/91cm):
1 ⁄
4
in per foot
Vertical short chains: 1 ⁄
4
in per foot (2.1cm/m)
Horizontal short chains: 1 ⁄
2
in per foot (4.2cm/m).
3. Measure the current slack :
Acting at a right angle to the chain span at the center
of the span, deflect the chain in both directions. The
slack is the distance of the movement.
4. Adjust the idlers for ideal slack.
Whenever mounting a chain, make sure the clip at the
removable link is oriented to minimize snags.
Refer to Figure 70
Note: Install clip with open end facing away from direction
of chain travel (shown by gray or striped arrows in
chain routing diagrams).
FigureSpacer
Figure 69
Measuring Chain Slack
27264
2
1
1
FigureSpacer
Figure 70
Chain Clip Orientation
26482
2