Great Plains 3P606NT Assembly Instructions - Manual (Page 17)

Great Plains Mfg., Inc.
Installation Instructions 17
04/02/2009 133-140M
Small Seeds Maintenance
Chain Installation
Whenever mounting a chain, make sure the clip at the
removable link is oriented to minimize snags.
Refer to Figure 25 (arrow shows chain direction)
Install clip with open end facing away from direction of
chain travel (striped arrows in routing diagrams).
Chain Slack
Check slack within the first 8 hours of operation and
tighten idlers as necessary.
Refer to Figure 26, 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 slack by acting at a right angle to the
chain span at the center of the span, and deflecting
in both directions. The slack is the distance of the
movement.
4. Adjust the idlers for ideal slack.
Small Seeds Drive Sprocket Hanger Bearing
Type of Lubrication: Grease
Quantity = Until grease emerges
Drive Chains
This installation adds three (3) chains.
Type of Lubrication: Chain Lube
Quantity = Coat thoroughly.
Figure 25
Chain Clip Orientation
26482
Figure 26
Measuring Chain Slack
27264
2
1
1
2
12225
15
12227
As
Required