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OPERATION AND MAINTENANCE
Hydraulic Fold System
The Field Cultivator is equipped with a hydraulic fold
system to raise and lower the wing frames for narrow
transport.
Figure 4-3: Hydraulic Leak Detection
Escaping hydraulic fluid can cause serious
personnel injury. Relieve system pressure before
repairing, adjusting, or disconnecting. Wear
proper hand and eye protection when searching
for leaks. Use cardboard instead of hands
Figure
4-3. Keep all components (cylinders,
hoses, fittings, etc.) in good repair.
1. Be sure the fold system is fully charged with hydraulic
oil before attempting to fold/unfold the unit. Air in the
system can allow uncontrolled dropping of the wing
frames causing serious personal injury or machine
damage. The system needs to be charged with oil
initially and any time the system opened for repair
such as cylinder, hose, or fitting replacement/repair.
2. To charge the system, unpin the end(s) of the fold
cylinders, and position them so they can extend and
retract without contacting any frames or other parts.
Check the tractor hydraulic fluid level to make sure it
is full of the manufacturer's recommended hydraulic
fluid. Connect the hydraulic fold and lift hoses to the
tractor. Fully extend the lift cylinders and raise the
implement. Extend and retract the fold cylinders
several times. The fold cylinder rod travel should be
smooth and positive when all air has been purged
from the system. Due to large amounts of hydraulic
oil required, recheck the tractor fluid level to make
sure it is within proper operating limits. Reconnect
the fold cylinder pins the wings.
4-4
WARNING
See
3. The hydraulic fold system is equipped with restrictors
in the cylinders to prevent uncontrolled falling of wing
frames when folding/unfolding. Removal or improper
assembly of these restrictors can cause the machine
to fold improperly and result in serious machine
damage.
4. To fold/unfold the Field Cultivator, find a level area
large enough to accommodate the machine when it
is fully unfolded. The tractor should be stopped and
not moving with the implement fully raised. Remove
the wing transport lock pins from the mounts and
install them in the storage locations
Failure to remove the wing lock pins when unfolding will
result in serious damage to the implement. Be sure other
people and pets are a safe distance away.
5. Slowly engage the tractor lever and fold/unfold the
wing frames. When the wings are unfolded, continue
holding the tractor lever to fully extend all fold
cylinders. This will allow the wings to fully flex in the
field. When the unit is fully folded, remove the wing
transport lock pins from the storage location and
install in the mounts provided on each side of the
machine
See Figure
6. Maintenance – Regularly check all hydraulic
components. Check for hoses that may have become
worn or pinched. Look for cylinders, valves, hoses, or
fittings that may be leaking hydraulic fluid. Replace or
repair any leaking or defective components
immediately. Unfold, lower the unit to the ground, and
relieve hydraulic pressure before attempting to
service any hydraulic component.
7. Storage - For extended periods of non use, it is best
to store the Field Cultivator inside if possible. If the
unit must be stored outside for extended periods, is
best to apply a light coating of oil or grease to
exposed cylinder rods to prevent them from rusting. If
the unit is stored in the folded position, make sure the
wing transport lock pins are installed to prevent wing
frames settling
See Figure
See Figure
4-4.
4-4.
F-1090-1120
4-4.
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