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OPERATION
OPERATION
Problem | Possible Cause | Remedy |
Spindle Leaking At | Due to Motor Seal Failure | See section on motor seal failure and repair as |
Motor | (hydraulic Oil leak) | needed |
| Motor Loose or bolts | Bolts should be checked every 8 hrs. Loss of |
| missing | torque will result in seal failure and leakage |
| Gasket torn due to | See above |
| movement of motor on |
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| spindle flange |
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| Excessive Backpressure in | Remove the Spindle vent plug and check for |
| Spindle | clogs or contamination. |
Spindle Leaking | Seal Damaged due to | Replace as required. Check for damaged or |
Around Bottom Seal | Debris | missing seal guard |
| Bearings Loose | Disassemble the Spindle and inspect the |
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| bearings for damage. |
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| properly |
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| technical service manual. |
| Seal blown out due to | Remove the Spindle vent plug and check for |
| excessive back pressure | clogs or contamination. |
Spindle Leaking At | Relief fitting installed in the | Install the vent in the top most hole or even |
Relief Vent | fill hole (wrong hole) | with the top of the top bearing race. The lower |
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| hole is the fill hole and should have a grease |
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| zerk or plug installed. |
| Spindle Overfilled | Overfilling will result in the lubricating oil being |
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| expelled from the vent. |
Spindle Overheating | Low Grease Level in the | Fill lubricant until it can be seen in the top most |
| spindle | (vent plug) hole. |
| Excessive Bearing Pre- | Disassemble the spindle and inspect the |
| load | bearings for wear. |
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| bearing |
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| Service Manual. |
| Blade bar bolts are too | Installing the incorrect bolts (too long) for the |
| long | blade carrier will allow the bolts to contact the |
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| lower bearing and will lock up the spindle. |
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| Install the correct bolts. |
Spindle Shaft Loose or | Bearing | Locking washers are provided to retain the pre- |
Falls Out | nut and/or lock nut failure | load lock nut in place. Improper installation of |
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| the washer and locking mechanism will allow |
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| the lock nuts to back off. |
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| following the recommended procedures |
| Bearing cups or cones not | Disassemble and check for wear. Follow |
| installed properly | reassembly procedures indicated in the |
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| Technical Service Manual |
| Severe upper bearing | Usually due to lack of lube. Replace the |
| failure. | bearing(s) and make sure the spindle is |
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| properly filled. Also check for leakage and |
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| repair as needed. |
1900 07/11 | Operation Section | |
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© 2011 Alamo Group Inc. |
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