Great Plains 7336 DH Operator Manual - Manual (Page 28)

24 7000 Series II Table of Contents Index Great Plains Manufacturing, Inc.
556-235M Table of Contents Index 2014-06-30
Transport Locks
Refer to Figure 12
4.
The manual u-shaped locks will only lock the lift (not
wings) and should be used for machine
maintenance, transport and long term storage.
Manual Guage Wheel Adjustment
Refer to Figure 13
To change the gauge wheel
setting, remove the wire
retaining pin and fold gauge wheel crank up to
adjust.
5. Lower or raise the gauge wheel by turning the gauge
wheel crank
. Raise the gauge wheels up until the
disk is adjusted in the fore-and-aft, side-to-side and
to the desired working depth you desire.
6. Fold the gauge wheel crank back down in the field
position and reinstall the wire retaining pin .
7. As you are running the disk through the field, stop
the tractor leaving the disk in the ground. Now adjust
the gauge wheels
1/2” above the ground.
8. The gauge wheel adjustment is designed to
corespond with the depth stop. Example: If the depth
gauge of the Disk Harrow is increased by 2
revolutions of the depth stop, then the gauge wheel
needs to be raised by 2 revolutions of their
adjustment crank.
9. This position should be maintained to prevent
excessive wear to gauge wheel parts.
Note: Tractor Speed: The ideal working speed for the disk
harrow is 5 to 6 mph. Working too slow may cause
plugging, poor incorporation or mixing of crop
residue and reduced weed kill. Running too fast
may cause streaks in chemical incorporation and
ridging.
Hydraulic Gauge Wheel Adjustment
The hydraulic gauge wheel is controlled by a re-phasing
cylinder that is plumbed into the hydraulic lift circuit. After
the adjustment eyebolts are set no additional
adjustments need to be made when making changes to
the depth stop.
Figure 12
Transport Locks
43419
1
2 3
3
3
2
1
Figure 13
Manual Gauge Wheel Adjustment
43414
2
1
3