Great Plains CPH-20 Operator Manual - Manual (Page 14)

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Section 2 Operating Instructions
CPH Center Pivot Hitch 148-152M 12/29/2011
Great Plains Mfg., Inc.
You can adjust spring tension on pivot-lock tubes. Refer to
Pivot Lock Tube Adjustment, “Adjustments,” page 15.
Transport Lift Cylinders
The transport-lift cylinders are rephasing hydraulic cylin-
ders. After a period of normal use, the cylinders may get
out of sequence. If this happens, the hitch will lift unevenly
or one set of tires will not retract from the soil.
To rephase cylinders, raise drill completely and hold hy-
draulic lever on for a few seconds to allow cylinders time to
rephase.
Transporting
!
WARNING!
Towing the implement at high speeds or with a vehicle that is
not heavy enough can lead to loss of vehicle control. Loss of ve-
hicle control can lead to serious road accidents, injury and
death. To reduce the hazard:
• Do not exceed 20 mph (32 kph).
• Install lock pins and channel as explained below.
• Do not tow an implement that, when fully loaded, weighs
more than 1.5 times the weight of the towing vehicle.
1. Check that implement is securely hitched to a suffi-
cient tractor. Refer to Hitching Tractor to Hitch, “Prep-
aration and Setup,” page 7. Make sure safety chain is
secured to tractor.
2. Unload drill seed box before transporting if at all pos-
sible. The implement can be transported with a full box
of grain, but added weight will increase stopping dis-
tance and decrease maneuverability.
3. Check that tires are properly inflated. Refer to Tire In-
flation Chart, “Appendix,” page 24.
4. Know implement dimensions in transport position.
Choose a route that provides adequate clearance
from all obstructions. Refer to “Specifications and
Capacities,” page 23, for dimensions.
5. Hydraulically lift drill with transport-lift cylinders.
6. Install transport lock pins in vertical axle tubes.
Figure 2-4
Lock Pin Installed
7. Lock pivot-lock tubes for transport. Position tubes so
they are horizontal against hitch frame. See Figure 2-
3.
8. Remove lock channel from storage (1). Install lock
channel over extended tongue-cylinder rod.
Figure 2-5
Lock Channel
9. Comply with all laws when traveling on public roads.
Parking
Perform the following steps when parking implement. Re-
fer to Storage, “Maintenance and Lubrication,” page 18,
for information on long-term storage preparation.
1. Park implement on a firm, level area. Lower coulters
and drill to ground.
2. Block tires securely to prevent rolling.
3. Release pressure on hydraulic system, then discon-
nect hydraulic lines. Check that hose ends do not rest
on ground.
4. Move jack from transport position and place it on stob
on side of hitch tongue.
Figure 2-6
Jack Extended
5. Extend jack until all weight is off tractor drawbar. Re-
move 1-by-10-inch bolt, washer and nut.
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