Great Plains 3S-3000 Installation Instructions - Manual (Page 2)

Great Plains Mfg., Inc.
2 Open Center Hydraulic Kit
194-149M 09/05/2012
Before You Start
Review the instruction for your drill, with the following
objectives at each step:
• Documentation: Update your Operator and Parts
manuals to current editions. See page 21.
• Inventory: examine any called-for items and make
sure all parts are present.
• Comprehension: make sure you understand
where each part or assembly is installed, and
what tools are required for the task.
Pre-Assembly Preparation
Work Location
1. Move the drill to a location with:
• adequate illumination,
• suitable surface beneath (hydraulic fluid spills a
re likely during disconnection of existing hoses),
and;
• access to tractor or hydraulic power.
!
WARNING
Negative tongue weight hazard. Consult Operator manual
before any unfolding or lift operations. Folding drills can have
significant negative tongue weight when unfolded and raised.
The tongue can fly up during opener lift, if using stationary
hydraulic power to operate drill. Use any parking stands pro-
vided.
Prepare Drill
2. Unfold the drill.
3. Install any parking stands provided with drill.
4. Lower the openers.
5. Block the tires.
Refer to Figure 2
6.
Release the pressure in the pressure control sys-
tem by unlocking control disks and turning adjust-
ment knobs fully counter-clockwise.
7. Slightly raise the openers, until pressure gauges
read zero.
8. Set the tractor or hydraulic source circuits to Float.
Do not disconnect until circuits are at 0 PSI.
9. Install the parking jack if unhitching.
10. Shut off tractor or hydraulic source.
!
CAUTION
Slipping hazard - hydraulic fluid spill is likely during discon-
nection of existing system and during bleeding of new system.
Clean up spills. Move carefully near removed or loosened fit-
tings.
FigureSpacer
Figure 2
Closed Center Controls
15557