Great Plains NTA2007 Operator Manual - Manual (Page 126)

122 NTA607 or NTA2007 Table of Contents Index Great Plains Manufacturing, Inc.
166-372M Table of Contents Index 2012-01-05
In-Line Filter
If folding/unfolding times slow noticeably, check the in-
line filter and clean if needed. The filter is located at the
inlet port of each pressure valve (page 160).
1. Move drill to typical field conditions. Unfold drill
(page 35). Lower openers (page 40). Turn on
fan (page 61) and bring up to normal field rpm.
2. Set Fold circuit to Float.
3. Shut down tractor and remove key.
Refer to Figure 103
4.
Slowly loosen filter and relieve any residual pressure
in line. When disconnecting hose, support the end to
minimize fluid loss.
5. To disassemble unscrew end cap of filter. Remove
top retaining washer and screen.
6. Clean filter screen with solvent and compressed air,
or replace if needed.
7. When reassembling put screen into filter. Place
retaining washer on top of filter and screw on end
cap.
8. Re-install filter.
9. Activate the Fold circuit. Cycle the lift and fold
systems several times. Check for leaks.
10. If there is any sign of air in the system, perform a
bleed operation (page 121).
Figure 103
In-Line Filter
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