Great Plains
| 195-440M | 2019-05-03
34
2S-2600/F/HD/HDF
Operating Instructions
Active Hydraulic Systems
1. Lock hydraulic lever forward during field operation
for constant hydraulic flow to openers.
John Deere tractors with Sound-Gard ® Body
:
Use lever lock clip, John Deere part number
R52667, to lock lever forward. See your tractor
dealer for clip purchase and installation.
John Deere 7000 Series tractors
: Rotate valve
detent selector to motor position to lock lever in
forward position.
John Deere 8000 Series tractors
: Set timer to
continuous. Push lever forward until detent clicks.
Case-IH Magnum tractors
: Lock lever forward in
detent position. You may need to turn up detent
pressure to its maximum setting. Do not tie hydraulic
lever past detent position with a strap. See your
tractor dealer for hydraulic-system details.
Other tractors
: Lock lever forward in detent
position. You may need to turn up detent pressure to
maximum or use a mechanical detent holder to hold
lever forward. See your tractor dealer for proper
means of providing constant flow to openers.
2. With tractor hydraulic lever locked forward and
openers in field position, release lock disk and set
down pressure with adjustment knob . Watch
pressure gauge and dial in desired pressure on
openers. There is one pressure-control valve for
inboard openers (“CENTER”) and one for outboard
openers (“WING”). If the Point Row option is
installed, the controls are Left (“LEFT”) and Right
(“RIGHT”).
NOTE:
Rotate knob clockwise to increase pressure and
counterclockwise to decrease pressure.
3. Once pressure is set, set knobs with lock disks .
4. In some applications, pressure on inboard end of
wings (CENTER) is set slightly higher than the
outboard ends (WINGS) to account for additional
compaction from drill transport tires and tractor tires.
The recommended pressure range for drilling is
between 1200 psi and 1800 psi, and initially 1400 psi
5. For more information on adjusting hydraulic down
Row Unit Down Pressure (Spring)
Equipment Damage Risk:
Tractors with load-sensing hydraulics must use the bypass
valve to operate the 2S-2600/F/HD/HDF. Failure to use the
bypass valve can cause major tractor damage. Before
adjusting opener down pressure, set bypass valve per “
Equipment Damage Risk:
During operation always raise openers before turning. Never
back up or turn sharply with openers in the ground. Doing so
will plug openers and may damage equipment.
Inconsistent Population Risk:
Do not operate at pressures so high that the gauge wheels
loose traction, or are off the ground, resulting in skips and
poor seed metering.
Figure 29 - Active
Pressure Control Valves
26477
1
2