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2019-03-11
407-502M
NP30A or NP40A
Adjustments
90
2013+ 2-Point 5-Section Weight Transfer
For 3-Section, Pull-Type, and 2012- 2-Point 5-Section,
see page 88.
See important safety information on page 87.
Description of system
Note: See circuit diagrams in the Appendix starting on
Inner wing fold cylinders can extend, during field
operation, to push the wings down using
mainframe/center weight. Weight transfer is enabled
by:
1. Set the FOLD / FIELD switch to FIELD.
2. Adjust the weight transfer valve.
The fold/lift circuit is set to continuous flow (in unfold
mode) to maintain the active weight transfer. This
system is designed for use with tractors having closed
center hydraulics. It is incompatible with open center
systems.
Note: Do not set or adjust the weight transfer system if
the outer wings are not level with the inner wings
at unfold. Do not use the weight transfer system to
compensate for unfold stop adjustment issues.
Adjust the weight transfer to achieve consistent coulter
depth, while keeping the wings level with the center
section. If insufficient weight is transferred, outside
(wing) coulters may run higher than center section. If
too much weight is transferred, center section may run
high.
If adjusted when the tractor is cold, re-adjustment may
be required when the oil warms. Monitor the pressure
gauges during early field operations.