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Excessive tractor wheel slippage.
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Not enough tractor ballast.
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Add weights or liquid. See tractor operator's manual.
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Tractor overload.
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Reduce machine depth.
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Disk wobble in field.
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Gang shaft nut loose.
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Tighten to 881 N·m (650 lb-ft). (See TIGHTENING GANG BOLTS in Service section.)
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Not enough ground clearance in transport.
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Full stroke on cylinder not obtained.
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Extend cylinder to full stroke. Bleed cylinder, if necessary. (See BLEEDING DEPTH CONTROL CYLINDERS in Service section.)
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Tire inflation too low.
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Inflate to correct pressure. (See CHECKING TIRE PRESSURES in Service section.)
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Machine not level.
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Level machine. (See LEVELING MACHINE in Operating Machine section.)
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Machine not stable in operation.
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Over-powered.
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Follow recommended tractor sizes. (See Specifications section.)
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Operating at high speed and shallow depth.
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Reduce speed and/or increase depth.
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Machine does not follow tractor in field.
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Standard not uniformly located on frame, or unequal number on each side of center.
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Reposition standards.
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Unequal tire pressure.
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Correct tire pressure. (See CHECKING TIRE PRESSURE in Service section.)
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Unequal depth adjustment.
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Equalize cylinder adjustment.
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In field operation, back of machine too low.
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Excessive tool suck, causing rear of machine to be lower than front.
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Level machine. (See LEVELING MACHINE In Operating Machine section.)
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Disk gangs running too deep.
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Raise gangs.
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| Symptom |
Problem |
Solution |
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In field operation, front of machine too low.
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Machine not set level; insufficient sweep penetration.
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Level machine, or adjust depth. (See LEVELING MACHINE In Operating Machine section.)
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Disk gangs running too shallow.
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Lower gangs. (See ADJUSTING DISK GANG DEPTH in Operating Machine section.)
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Ridging or "windrowing" trash at edges of machine.
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Disk gangs not positioned properly on frame.
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Check locations of disk gangs.
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Machine is "nose low" in operation.
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Level machine front-to-rear. Adjust turnbuckle so machine runs level under power.
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Wings "drooping".
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FLEX-FOLD: Adjust depth cylinder eyebolts.
RIGID-FOLD: Adjust rod end of wing-fold cylinders or stabilizer wheel down pressure.
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Excess speed.
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Do not operate faster than 11 km/h (7 mph).
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Excess depth.
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Do not operate deeper than 127 mm (5 in.).
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Disks penetrating too deep in light soil.
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Raise disk gangs as much as necessary. (See ADJUSTING DISK GANG DEPTH in Operating Machine section.)
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Disk gang will not slice trash.
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Machine operating "nose high".
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Level frame front-to-rear in field position.
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Disk gang depth too shallow.
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Lower disk gangs. (See ADJUSTING DISK GANG DEPTH in Operating Machine section.)
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| Symptom |
Problem |
Solution |
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Machine leaves "clods" or "slabs".
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Wet soil conditions.
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Wait for dryer conditions.
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Disk gang too aggressive.
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Raise disk gang as much as necessary. (See ADJUSTING DISK GANG DEPTH in Operating Machine section.)
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Spike-tooth harrow at too steep an angle.
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Adjust spikes to 45° angle. (See ADJUSTING SPIKE-TOOTH HARROW ANGLE in Operating Machine section.)
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Frame bowed down at front and back.
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Tubing straightness tolerance and weight acting on long frame.
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A bow of approximately 38 mm (1-1/2 in.) may be present when transporting in raised position. Bow should disappear in field operation.
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Gangs not penetrating.
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Disk gangs running too shallow.
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Lower gangs. (See ADJUSTING DISK GANG DEPTH in Operating Machine section.)
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Excessive penetration of gangs.
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Disk gangs running too deep.
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Raise gangs. (See ADJUSTING DISK GANG DEPTH in Operating Machine section.)
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Disks not cutting trash.
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Wrong direction of travel.
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Travel diagonally across trash.
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Disk gangs running too shallow.
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Lower gangs. (See ADJUSTING DISK GANG DEPTH in Operating Machine section.)
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Gang assembly does not revolve.
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Obstruction, causing braking action.
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Check for roots, rocks or mud.
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Disk gangs not lubricated.
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Lubricate bearings. (See LUBRICATE DISK GANG BEARINGS in Lubrication and Maintenance section.)
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Excessive penetration.
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Raise gangs. (See ADJUSTING DISK GANG DEPTH in Operating Machine section.)
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Improperly adjusted.
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Adjust scrapers. (See ADJUSTING DISK SCRAPERS in Operating Machine section.)
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| Symptom |
Problem |
Solution |
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Wings do not raise properly.
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Tractor hydraulic pressure too low.
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See tractor operator's manual.
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Air in cylinders.
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Bleed system. (See BLEEDING DEPTH CONTROL and WING-FOLD CYLINDERS in Service section.)
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Machine does not raise or lower.
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Hydraulic lock-up valve closed.
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Open hydraulic lock-up valve.
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Wings not level in field operation.
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Wings not adjusted for level operation.
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Adjust for level operation. (See LEVELING WINGS in Operating Machine section.)
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Cylinder leaking.
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Repair or replace. (See REMOVING CYLINDERS in Service section.)
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