NP30A or NP40A
Adjustments
91
2019-03-11
407-502M
Adjusting the Weight-Transfer
Note: See circuit diagrams in the Appendix starting on
1. In field conditions, unfold applicator (page 59).
2. Set FOLD / FIELD to FIELD.
3. Lower applicator (page 50), and set or check
application depth (page 38).
4. Pull forward to put coulters in ground.
5. Put tractor in Park and set parking brake.
6. Set tractor to half throttle. Extend the fold/lift circuit
(unfold). Lock lever for continuous operation.
7. Adjust tractor flow control valve so bypass gauge
needle is within the 1500 - 2200 PSI range. Larger
models will require the higher end of this range while
smaller models will want to be within the lower end.
NOTE
On older models without an electronic down pressure
valve, less PSI is required and pressure should fall
within the 1000 - 1500 PSI range.
8. Release the lock disc .
9. Adjust the knob for an initial value of 800 psi on
the gauge . Tighten the lock disc.
10. Check that bypass gauge is still in the green zone.
Adjust the tractor remote flow to correct. Re-check
the reading on the pressure-reducing gauge .
11. Observe applicator operation, and re-adjust
down-pressure as necessary after oil warm-up.
Repeat step 7 through step 10.
858-042C Rev. A
NOTICE
This machine is designed for continuous
hydraulic flow to the wing fold cylinders
during field operations. It is for use on
tractors having CLOSED CENTER
hydraulics only.
Engage the hydraulics (continuous flow) down.
1.
2. From the cab, adjust the flow so the needle
on the bypass gauge is in the green zone
1000 to 1500 PSI.
3. At the valve, adjust the valve to set your
initial down pressure.
If the wings run high during operation, increase
pressure. if the center runs high, decrease
pressure.
4.
SETTING DOWN PRESSURE VALVE
DOWN PRESSURE VALVE INSTRUCTIONS:
NUTRI-PRO
®
Figure 67
Weight Transfer Adjustment
34935
3
4
5
1
2
3
4
5
2
5