Great Plains PTO Kits 2-3-Section - Manual (Page 21)

Great Plains Manufacturing, Inc. Table of Contents Index PTO Operation 17
2014-09-10 Table of Contents Index 411-015M
Flow: Ground Drive Row-Hopper Air-Pro
®
Dry Fertilizer Planters
On model 1625AHD planters, the PTO pump drives a
single fan which delivers dry fertilizer and pressurizes the
seed meters. Setting and balancing pressures is a
manual operation. The seed monitor reports fan rpm.
Review the air system overview, fan operation, and
butterfly valve adjustment in the 411-020M Operator
manual before adjusting for PTO operation.
1. Look up the recommended meter pressurization for
the intended crop (see Seed Rate manual). Make a
note of the previous or factory settings of all butterfly
valves. Load seed in hoppers and meters. Meters
must be full to inlet shutters for valid readings.
Refer to Figure 13
2.
Close the manifold outlet butterfly valve
(set to 90
°). If the wing butterfly valves have been
previously adjusted for balance, leave them
undisturbed, otherwise set them full open (0
°).
3. • Check that tractor is in Park or Neutral.
• Check parking brake set.
• Set the tractor PTO controls for
1000 rpm gearing (if multi-speed) and
clockwise rotation (if bidirectional).
• Start tractor engine and set throttle to idle.
• Engage the PTO.
• Bring the tractor engine and PTO up to intended
field rpms.
Entanglement and Crushing Hazard:
Use extreme caution in the hitch area when the PTO is
operating.
Refer to Figure 12
4.
At the flow control valve, turn the lock disc
counter-clockwise to release the knob
. Slowly
turn the knob counter-clockwise to start the fan.
Bring the fan speed up until the Air-Pro
®
gauge
displays the suggested pressure for this crop.
Secure the lock disc.
5. Raise the planter. Turn each meter ground drive
wheel (2 or 3 per planter) forward several turns, until
all exposed cells in all seed disks contain seed.
6. As necessary, readjust manifold outlet butterfly
valve
to achieve recommended pressure on the
Air-Pro
®
gauge .
7. Re-check both pressures in the field, with material
flowing at desired rates. Adjust fan speed to stay
within 35 to 45 inches on the fan manifold gauge
.
Adjust the manifold outlet butterfly valve to the
suggested pressure for the seed.
Figure 12:
Flow Control Valve (1625AHL)
36339
29842
1
2
4
0
10
30 20
40
50
858-193C
3
5
Figure 13
Fertilizer Manifold Butterfly Valve
36134
858-208C
5
1
2
4
5
4
3
5