Implement Performance
PC19677-UN-12JUN14
PC19676-UN-12JUN14
Wide Narrow Row Spacing
A - Implement Travel Path
B - Desired Guidance Line
C - Machine Center-to-center Same Distance
D - Implement Center-to-center Narrow Distance
E - Implement Center-to-center Wide Distance
| Symptom | Problem | Solution |
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S-ing (A) — Implement Travel Path continuous back and forth motion over desired guidance line (B). | Field conditions. |
Utilize tractor differential lock, if equipped. |
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Drawbar is not locked in position. |
Lock drawbar into position. |
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Line sensitivity tracking or line sensitivity accumulated settings are not optimized. |
(Reference Adjust Sensitivity Settings in Operation section.) |
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Wide Narrow Row Spacing — parallel inconsistency in row spacing across entire length of field between passes. | Machine center-to-center distance (C) is the same between passes. Implement center-to-center distances (D and E) are different on each pass causing narrow and wide rows between passes. |
1. Ensure Application Controller 1100, display, and receiver have latest software. (Reference Service section.) 2. Turn on Terrain Compensation Module (TCM) and calibrate. (Reference receiver Operator’s Manual.) 3. Check and adjust machine ballast, tire pressure, and tire spacing. (Reference machine Operator’s Manual.) |
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Implement center-to-center distance is same between passes. Implement not tracking directly behind machine. |
1. Measure and input accurate implement offsets. (Reference display Operator’s Manual.) 2. Repair or replace worn or damaged implement components. (Reference implement Operator’s Manual.) 3. Adjust 3-point hitch. Adjust machine sway blocks and lift links to recommended settings. (Reference machine Operator’s Manual.) 4. Measure and adjust all row units to be symmetrical to implement center line. (Reference implement Operator’s Manual.) |
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Guidance AB line is not in correct location for implement. | Shifts were not cleared from display from a previous operation. |
Recreate guidance line using A+ Heading. Best practice is to set guidance lines for most critical operation. Utilize shifts for less critical operations in same field. Clear all shifts when leaving field. (Reference display Operator’s Manual for information on guidance line creation.) |
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Erratic performance. | Position dilution of precision (PDOP) value above 2.5 with obstructions more than five degrees above elevation. |
Ensure that implement receiver is not being shaded by obstructions or machine cab in all travel directions. |
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Real time kinematics (RTK) signal is weak or drops to RTK extended (RTK-X) differential. |
Utilize base station that provides signal with clear line of sight. |
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PDOP value above 2.5 with no obstructions. |
Wait for satellite solution to improve. If settings and adjustments are made, record original setting values to input when PDOP drops below 2.5. |
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After making headland turn, performance becomes erratic. |
Ensure application controller, display, and receiver have latest software. (Reference Service section.) |
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Guidance tracking error value for machine is greater than tracking error of Active Implement Guidance on implement. |
Determine root cause of high machine tracking error. (Reference display Operator’s Manual.) |
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Steer system not responding, but status displays OK. | SCV Threshold set too low. |
Perform SCV Threshold calibration. |
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RW00482,0000305-19-20140911 |