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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, pin the cultivator hitch to the
tractor, raise the implement jack. 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, unpin the end(s) of the fold cylinders, and
position them so they can extend and retract without
contacting any frames or other parts. 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
5. 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.
6. 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.
7. 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
8. 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.
9. 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-1105-1220
4-4.
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