24
Maintenance
Adjusting The Boom
The Wylie Spray Wyng II boom was manufactured to exact
-
ing specifications and should not need adjustment initially.
It may become necessary, however, during the life of the
boom to make adjustments to the folding/unfolding cycle
or the level control.
Fold/Unfold Adjustment
The boom should be adjusted so that it is straight when
completely unfolded.
Always adjust the inner wing first, then straighten the
breakaways. Always make sure that the fold cylinders
are fully extended before making adjustments. Make any
adjustments to align the unfolded boom first, then make
the adjustments to the folded boom.
Adjusting Inner Wing
The inner wing unfold cycle is controlled by the setting of
the limit bolt. The limit bolt should be set so that the primary
wing is aligned with the center section when the cylinder is
fully extended. Extra shims are located between the nut and
frame. To adjust the boom “in” remove the nuts and move 1
or 2 shims to the other side of the frame, which “lengthens”
the bolt. Retighten the nuts and check alignment.
In rare cases, it may be necessary to extend the length of
the cylinder by extending the cylinder clevis. Remove the
cylinder pin and screw the clevis “out” as needed.
Adjusting Wing Relief Valve
The Spray Wyng II boom is equipped with a relief valve
for each side of the boom which works like an automatic
reset. A fast stop or high speed turn can cause one or both
wings to swing forward. As the sprayer moves through the
field, the natural action allows the relief valve to equalize
the hydraulic fluid in the fold cylinder and reset the boom
against the boom stop. The relief valve is preset at the
factory and should not need adjustment. However, if the
boom swings forward but does not reset without activating
the hydraulics, the relief valve may need adjustment. It is
recommended that you contact the Wylie Service Depart
-
ment for specific instructions or have a factory service
technician make the adjustment.
Overtightening of the relief valve can cause excessive
pressure and damage in the hydraulic system.
Aligning The Breakaway
The breakaway is controlled by an auto-reset shock. The
breakaway is equipped with a poly spring cushion and a
coil spring. The coil spring should maintain some pressure
against the poly spring. Adjust the setting of the set bolt to
align the breakaway.
Center Section
Inner Wing
Outer Wing
Figure D4
Spray Wyng II Boom Sections
Figure D5
Inner Wing Adjustment
< Fold Hinge
< Fold Cylinder
Limit Bolt >
Figure D6
Removing Cap Adjusting Relief Valve
Breakaway
Shims >
Содержание Spray Wyng II
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