OPERATION
OPERATION
14. TROUBLE SHOOTING GUIDE
Problem | Possible Cause | Remedy |
Excessive Vibrations | Check Gearbox bolts. | Tighten if loose. |
| Check for loose nuts on | Tighten if loose. |
| Blade holder and Blades |
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| Check for bent output shaft. | Replace shaft if bent. |
| If shaft is bent oil will normally |
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| leak from the bottom seal. | Free blades so they swing |
| Check to see if blades are | |
| free swinging. | Weigh blades. Weight should be |
| Check for even wear on each | |
| blade tip. Were both blades | within 1 oz. Always replace both blades |
| changed at the same time? | Replace blades, in sets. |
| Blade Broken. | |
| Blade carrier bent. | Replace carrier. |
| Blade hub not properly | Remove hub, check tapered spline |
| seated on shaft | shaft, clean and replace. |
| New Blade or bolts matched | Replace blades or bolts in sets |
| Drivelines not phased correctly. | Replace Drivelines. |
| Implement & tractor yokes must |
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| be in line. |
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Gearbox Overheating | Low on lubricant. | Fill to level plug. |
| Improper type lubricant. | Replace with NLGI 000 lubricant. |
| Excessive trash | Remove trash. |
| around gear box | Consult your dealer. |
| Bearing or gears set up improperly | |
Gearbox Noisy | Rough gears. | Run in or change gears. |
| Worn bearing. | Replace bearing |
Gear Box Leaking | Damaged oil seal | Replace Seal. |
| Bent shaft. | Replace oil seal and shaft. |
| Shaft rough in oil seal area. | Replace or repair shaft. |
| Oil seal installed wrong. | Replace seal. |
| Oil seal not sealing in the housing. | Replace seal or use a sealant |
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| on OD of seal. |
| Oil level too high. | Drain oil to proper level. |
| Sand hole in casting. | Replace castings or gearbox. |
| Gasket damaged. | Replace gasket. |
| Bolts loose. | Tighten bolts. |
Clutch Slips Excessively | Clutch linings badly worn or | Repair clutch per maintenance |
| plates warped. | section of manuals. |
| Too much power for clutch. | Reduce ground speed and material |
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| intake. |
| Oil on facings. | Replace facings. |
| Friction facings glazed. | Clean with emery cloth. |
FN180/FN120 01/11 | Operation Section |
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© 2011 Alamo Group Inc. |
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