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OPERATION AND MAINTENANCE
Hydraulic Coulter Gang Lift
System
The rephasing coulter gang lift system must be purged of
air before beginning field operation. To insure that all air
is purged from the system, the gang cylinders are
mounted in a vertical position with the base end of each
cylinder mounted on the gang bar.
1. Make sure the tractor's hydraulic reservoir is full of
the manufacturer's recommended oil.
2. Extend the lift cylinder and raise the machine.
3. Fully extend the coulter gang cylinders and hold the
tractor lever to allow oil to bypass and fill each coulter
gang cylinder.
IMPORTANT
When initially filling the cylinders with oil or after
extended periods of storage, hold the tractor valve
approximately 1 minute. If the coulter chisel has
recently been used, hold the tractor valve
approximately 10 seconds.
4. Raise and lower the coulter gangs making sure the
cylinders actuate simultaneously throughout the
stroke.
5. If the coulter gang cylinders are not in unison,
continue holding and cycling the cylinders to purge
any remaining air.
6. This rephasing process may need to be repeated
periodically during operation to assure even
penetration of coulter gangs. DO NOT loosen any
hydraulic fittings.
IMPORTANT
Retracting the cylinders during periods of storage
will prevent rusting of shafts and subsequent
damage to seals.
NOTE
Some tractor models have a bypass built into the
hydraulic outlets. It may be necessary to reverse the
coulter gang lift hoses if the rephasing cylinders extend
during field operation.
4-6
General Operation
1. The horsepower requirements are typically 20-25
horsepower per shank. This will vary widely due to
speed, depth, moisture, residue and types of soils.
Local dealers can help in making recommendations
for your areas.
2. Operating speed is typically 4.5-6 mph. Excessive
speed can cause the unit to bounce, uneven depth,
and create undesirable ridges.
3. Lift wheels must always be in contact with the ground
and carrying some implement weight. Lift wheels are
used to gauge the depth and to control the leveling
feature.
4. Do not turn with the Wing Coulter Chisel in the
ground. This can put excessive side load on the
gangs and hitch. Raise the unit fully when making
turns to prevent gouging and pushing a ridge.
F-721-0513
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