Troubleshooting Linear actuator
- Power Cylinder
ECO Series - Power Cylinder
F Series - Power Cylinder
G Series - Power Cylinder
T Series - Linipower Jack
- Zip Chain Actuator
Linipower Jack
※Most jack problems are caused by a failure in lubrication, selection, or installation.
If any problem arises, follow this troubleshooting guide and take the appropriate measures.
1 | Gear housing breakage |
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Cause 1 | Overload | Action | Reduce the load or change the jack to one with an appropriate capacity. |
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Cause 2 | Improper support | Action | Mount the jack onto a solid platform and align the center accurately. |
Cause 3 | Shock | Action | Attach a shock absorber to prevent impact. |
2 | Input shaft breakage |
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Cause 1 | Improper centering | Action | A rigid coupling may cause breakage of the shaft. Use a flexible coupling. |
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Action | Adjust the shaft to achieve necessary concentricity. | ||
Cause 2 | Excessive overhung load | Action | Adjust the shaft to achieve the catalog value or less. |
Cause 3 | Overload | Action | Refer to 1 of Gear housing breakage. |
Cause 4 | Shock load | Action | Add a safety device to prevent impact load. |
Cause 5 | Excessive input | Action | When several jacks are connected in series, there is a limitation on the input shaft of the first jack due to the axial strength. If the current value exceeds the catalog value, reduce the load or change the jack to one with a larger capacity. |
3 | Bearing damage |
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Cause 1 | Overload | Action | Refer to 1 of Gear housing breakage. |
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Cause 2 | Excessive overhung load | Action | Refer to 2 of Input shaft breakage. |
Cause 3 | Improper centering of the coupling | Action | Refer to 1 of Input shaft breakage. |
Cause 4 | Axial adjustment of the coupling | Action | Adjust the position and length of the coupling so that the input shaft will not receive axial load. |
Cause 5 | External force to the worm wheel bearing | Action | Although the specified pressure has been applied to the bearing, the input shaft can be rotated freely when no load is connected. If the rotation is heavy, some force may be applied to the input shaft in the axial direction. Remove the force. |
Cause 6 | Insufficient lubrication | Action | Refer to "5. Maintenance/inspection" in this instruction manual and apply necessary lubrication. |
Cause 7 | Shock load | Action | Refer to 4 of Input shaft breakage. |
4 | Abnormal wear of travel nut/worm wheel |
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Cause 1 | Overload | Action | Refer to 1 of Gear housing breakage. |
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Cause 2 | Insufficient lubrication | Action | Refer to 6 of Bearing damage. |
Cause 3 | Improper adjustment/installation | Action | Set the load so that it will be applied onto the same axis as the screw shaft. |
5 | Ball nut damage, abnormal wear |
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Cause 1 | Overload | Action | Refer to 1 of Gear housing breakage. |
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Cause 2 | Improper adjustment/installation | Action | Set the load so that it will be applied onto the same axis as the screw shaft. |
Cause 3 | Insufficient lubrication | Action | Refer to 6 of Bearing damage. |
Cause 4 | Inappropriate sizing | Action | Review the connection between the product life and load in the catalog. |
6 | Screw shaft breakage, abnormal wear, noise from screw shaft |
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Cause 1 | Overload | Action | Refer to 1 of Gear housing breakage. |
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Cause 2 | Improper adjustment/installation | Action | Refer to 2 of Ball nut damage. |
Cause 3 | Side load | Action | Install a guide to prevent side load. |
Cause 4 | Insufficient lubrication | Action | Refer to 6 of Bearing damage. |
7 | Abnormal surface temperature of gear housing (over 80℃) |
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Cause 1 | Overload | Action | Refer to 1 of Gear housing breakage. |
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Cause 2 | Insufficient lubrication | Action | Refer to 6 of Bearing damage. |
Cause 3 | Improper centering | Action | Refer to 1 of Input shaft breakage. |
Action | Refer to 3 of Screw shaft breakage. |