OPERATION
OPERATION
15. TROUBLESHOOTING GUIDE
Problem | Possible Cause | Remedy |
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Not Cutting Clean | Blades dull. | Sharpen or replace Blades. |
| Blade rotation incorrect. | Use correct Blade for Carrier. |
| Using Straight Blades | Use Fan Blades in grass. |
| Carrier RPM too low. | Increase PTO speed. |
| Mower not leveled. | Adjust machine level (in very heavy |
|
| weeds, 1/2” to 1” low in front). |
| Tires mashing down grass. | Use offset Adapter to move Mower to |
|
| the left. |
| Ground speed too fast. | Reduce ground speed. |
| Blades locked back. | Free blades. |
| Blades riding up due to Blade | Replace Blade Bolts. |
| Bolt wear. |
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| Blades bent up. | Replace Blades. |
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Breaking Blade Bolts | Operating with loose Blade Bolts. | Tighten Blade Bolts to 300 ft./lbs. |
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| (Left Hand Threads). |
| Worn Blade Bolt. | Replace Bolt. |
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Cutting Too High | Blades bent up. | Replace Blades. |
| Blade Bolt Bushing broken or | Replace or reweld Bushing. Weld with |
| loose. | E7018 low Hydrogen rods. |
| Blade Carrier bent. | Straighten or replace Blade Carrier. |
| Blades on upside down. | Turn Blades right side up and tighten. |
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Mower Vibrates | Blade locked back. | Loosen locked Blade. |
| Drivelines not phased. | Replace Driveline. |
| Blade broken. | Replace Blades in sets. |
| Blade Carrier bent. | Repair or replace Carrier. |
| Blade Hub not properly seated | Remove Hub, check Key and Shaft, |
| on Shaft. | and replace or seat properly. |
| New Blade matched with worn Blade. Replace Blades in sets. | |
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Mower Windrowing | Cutting heavy material. | Raise Mower and reduce ground |
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| speed. |
GR60/72 02/07 | Operation Section |
© 2007 Alamo Group Inc.
