GREAT PLAINS Yield-Pro YP4025A-48TR20, Operator'S Manual

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YP4025A-48TR20 Table of Contents Index Operating Instructions 27
2019-03-19 Table of Contents Index 411-198M
Unfolding, Continued ...
7. Raise tractor 3-point hitch or extend (raise) product
hydraulic tongue until tongue wing locks rise and
disengage.
Machine Damage Risk:
Raise hitch before unfolding. If hitch is not raised, wing locks
will remain in transport hooks. Wings will not unfold, and
machine damage is possible.
8. Set CFM Marker/Fold switch to Fold. LED above
switch blinks continuously.
9. Activate (normally Retract) tractor hydraulic circuit to
unfold wings.
10. Operation is complete when the tongue lock
engages.
Refer to Figure 19
Machine Damage Risk:
Do not operate implement name when unfolded unless tongue
lock is engaged. When unlocked, the pull bar system
experiences excess loads. The openers may be damaged by not
tracking straight forward.
11. When fully unfolded, set Marker/Fold hydraulic
circuit to Neutral.
12. For imminent lowered operations, remove lift
cylinder locks (see “ Lift Cylinder Lock-Up ” on
page 30).
13. Set hitch height to planting position
(“ Raising/Lowering Tongue ” on page 20).
Machine Damage Risk:
Unfold and fold slowly. Adjust hydraulic flow to take a
minimum of 60 seconds to unfold or fold. Wings are massive,
and damage can occur if they reach the end of travel at high
speed. At lower speeds you also have time to check for hose
pinching or kinking, as well as react to anything unexpected in
the sweep arc.
Figure 17
Unfold: Wings Locked
29243
8
8
8
4
Figure 18
Product Unfolding
29279
9
Figure 19
Tongue Lock Engaged
29334
9