Great Plains Gauge Wheel-Spindle - Manual (Page 18)

Great Plains Mfg., Inc.
18 Dual Gauge Wheel/Spindle Update
195-080M 04/10/2009
Wing Close-Out
Re-Install Chain
Refer to Figure 30
87. Select the saved ground drive chain
.
Route it under and behind the new lower driving
sprocket (
, not shown), then behind the lower
idler , above the upper idler , over (from behind)
at the upper driven sprocket (not shown), and down
to the front of the new driving sprocket.
88. Assemble chain ends with removable link . Make
sure open end of clip faces away from direction of
chain travel (striped arrows).
89. Engage slotted idler until front length of chain has
5 ⁄
8
in (16mm) slack.
90. Lubricate chain.
91. Lower jack.
92. Perform step 21 through step 91 for the right wing.
Update Close-Out
93. Raise drill. Raise openers. Move drill forward and
backward, checking drive chain motion at ground
drives.
94. In field conditions, lower openers, pull forward and
check for consistent drive operation. Re-check
chain slack.
Dual Gauge Wheel Operation
Updating the spindle, or upgrading from single to dual-
wheel ground drive, has no effect on drill Operations or
Adjustments. In particular, the gauge wheel revolutions
per area for calibration is unchanged.
Gauge Wheel Maintenance
Updating the spindle has no effect on drill maintenance,
other than that four bearings are freshly re-packed.
If the tire size/type changed during the update, the rec-
ommended tire pressure and wheel bolt torque may now
be different than for the previous tires and wheels.
Figure 30
Re-mount Chain
29445
26482
2
3
1
4
3
25
4 2
1