Great Plains 4000TT Operator Manual - Manual (Page 27)

Great Plains Manufacturing, Inc. Operating Instructions 23
02/11/2014 586-201M
Spike Drag
Refer to Figure 15
29. Adjust the drag to leave the desired results while
maintaining the trash flow through the drag.
30. On the spike drag, start with 5 links hanging from the
chain in drag arm bottom slot. (This is the starting
point for worst conditions.) The cleaner the ground,
the shorter the pull chain may be pulled up. On the
spike drag, one of the links in the first row of angles
is turned over. This allows the trash to start flowing
through the drag easier by changing the angle of the
first row of teeth. Always make sure that the drag is
never pulling off the hang chains. If so, shorten pull
chains.
Reel
Refer to Figure 16
Be sure reels are installed with twisted bars oriented forward
as shown. Mounting backward can damage reel in rocky soil
31. For an initial starting point, set the pre-load on the
reel arm assembly so that 1/8” of thread is showing
on the end of spring bolt
.
32. Set the pre-load on the eye bolt to 3” from the pin
of the eyebolt to the top of the 3/4” jam nut, this is
also just an initial starting point.
33. You may need to adjust the eyebolt to change the
down pressure.Extend the eyebolt to increase the
down pressure. Retract the eyebolt to decrease the
pressure. If the eyebolt is extended to an extreme it
will reduce the road clearance of the reel. To fix this,
tighten the lock nut
on the end of the spring bolt.
This will raise the reel during transport. After any
adjustments be sure the eyebolt pin is horizontal to
the machine frame and that the jam nuts are properly
tightened.
34. The bars on the reels are angled forward and
should be installed as such on machine. In some
conditions in which a firming of the soil is more desir-
able than breaking up clods then these reels can be
mounted in reverse
. This does however increase
the chance of causing damage to the bars in rocky
soil.
Figure 15
Spike Drag Adjustment
41235
4
5
1 2
3 6
2
Figure 16
Reel Adjustment & Direction
43296
1
2
3
2
4
5
6