Great Plains UT5052 Operator Manual - Manual (Page 23)

Great Plains Manufacturing, Inc. Operating Instructions 19
12/31/2013 576-026M-A
Hydraulic Down Pressure 5 Section
Refer to Figure 10
Note: This setup procedure is for tractors with closed-center or
pressure compensated flow hydraulic systems. Open
center hydraulics not supported. Adjust down pressure
valve as shown on decal
(located on top of inside and
outside pressure reducing valve) Refer to Figure 11.
21. Close front valve (clockwise); open one turn.
22. Set tractor flow rate for fold system to SLOW.
23. Engage hydraulics (continuous flow) down.
24. Adjust rear valve to obtain 1200 psi.
25. Adjust front valve to 1100 psi; lock valve.
26. Adjust rear valve to desired down pressure
(400-700 psi inside wings-left valve )
(400-700 psi outer wings-right valve .
27. If the wings run high during operation, increase pressure.
If the center runs high, decrease pressure. Do not exceed
exceed 1000 psi.
Caution: 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. If
your tractor has OPEN CENTER hydraulics, please consult
your dealer for operating instructions.
Figure 10
Down Pressure 5 Section
43178
2
3
1
4
1
2
3
4
Figure 11
Down Pressure Decal 5-Section
838-982C
3
4