Great Plains 2420 Operator Manual - Manual (Page 12)

10
Section 1 Preparation and Setup
2400, 2410 and 2420 Three-Point Drill 118-706M 5/15/06
Great Plains Mfg., Inc.
Section 1
Preparation and Setup
This section will help you prepare your tractor and drill for
use. Before using the drill in the field, you must hitch the
drill to a suitable tractor (see Tractor Requirements, Spec-
ifications and Capacities, page 33) and level the drill.
Prestart Checklist
1. Read and understand “Important Safety Informa-
tion,” page 1.
2. Check that all working parts are moving freely, bolts
are tight, and cotter pins are spread.
3. Check that all grease fittings are in place and lubricat-
ed. Refer to Lubrication, “Maintenance and Lubrica-
tion,” page 29.
4. Check that all safety decals and reflectors are correct-
ly located and legible. Replace if damaged. See Safe-
ty Decals, “Important Safety Information,” page 5.
5. Inflate tires to pressure recommended and tighten
wheel bolts as specified. See “Appendix,” page 34.
Hitching Tractor to Drill
!
DANGER
You may be severely injured or killed by being crushed between
the tractor and drill. Do not stand or place any part of your
body between drill and moving tractor. Stop tractor engine and
set park brake before installing pins.
1. Raise or lower tractor three-point arms as needed and
pin lower arms to drill.
2. Pin upper arm to drill. For category III tractors, install
hitch pin in the lower hole. For category IV-N tractors,
install hitch pin in the upper hole.
3. Slowly raise drill. Watch for cab interference.
4. If using optional parking stands, unpin stand tubes.
Rotate stands up into field position and repin. See Fig-
ure 1-1.
Figure 1-1
Parking Stand
5. Adjust top three-point link so that top edge of drill box
is parallel with ground when drilling.
NOTE: Do not use link to adjust opener depth. For opener
adjustments, refer to Opener Down Pressure and Opener
Depth, “Adjustments,” starting on page 15.
6. Set your tractor three-point-draft control to float posi-
tion.
7. Plug lead from drill light harness into tractor recepta-
cle.
Hydraulic Hookup
!
WARNING
Escaping fluid under pressure can have sufficient pressure to
penetrate the skin. Check all hydraulic lines and fittings before
applying pressure. Fluid escaping from a very small hole can be
almost invisible. Use paper or cardboard, not body parts, and
wear heavy gloves to check for suspected leaks. If injured, seek
medical assistance from a doctor that is familiar with this type
of injury. Foreign fluids in the tissue must be surgically removed
within a few hours or gangrene will result.
Great Plains hydraulic hoses are coded to help you hook-
up to your tractor outlets. To distinguish hoses on the
same hydraulic circuit, refer to plastic hose holder. See
Figure 1-2. Connect hose under extended cylinder to out-
let you choose for cylinder extension. Connect hose under
retracted symbol to outlet for cylinder retraction.
Figure 1-2
Hydraulic Hose Color Ties
12151
17641