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Trucklift | Maintenance, Troubleshooting |
Problem | Possible cause |
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The lift stops at a height of | a) The distance between the | a) Check the wear of the bearing | |||
approx. 260 mm | catch nuts and the jackscrew |
| nuts. | ||
(measured from the floor to | bearing nuts is too small. | b) Check the distance between | |||
the lower edge of the | b) A proximity switch is defective | ||||
| the proximity switches and the | ||||
carriage). |
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or its setting is incorrect. |
| switching cams on the frame | |||
The lift can only be |
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| and on the catch nuts .5 mm). | |||
lowered from this position. |
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Further raising is not |
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possible. |
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The LED on the circuit |
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board blinks.(see ill. on |
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next page) |
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The lift stops at a height of | No signal pulse from the | Check the proximity switches. | |||
approx. 400 mm | switching cam on the frame or | (Call | |||
(measured from the floor to | the catch nut. | Check the distance between the | |||
the lower edge of the |
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| proximity switches and the | ||||
carriage). |
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| switching cams on the frame | ||||
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The lift can only be |
| and on the catch nuts. | |||
lowered from this position. |
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Further raising is not |
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possible. |
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The LED on the circuit |
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board blinks.(see ill. on |
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next page) |
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The lift can only be moved | A bearing nut is broken and the | Have the bearing nut repaired. | |||
to its lower starting | load is being borne by the catch |
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position. | nut. |
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| Shut down the lift and | |
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Lifting is no longer |
| lock the main switch! | |||
possible. |
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At the beginning of lifting | All motors are starting up | Change the setting of DIP switch | |||
the lift stops and the power | simultaneously. This causes a | 4 on the control PCB to | |||
supply circuit breaker trips. | voltage peak that trips the circuit | "OFF".(see ill. on next page). | |||
Neither lifting nor lowering | breaker | This starts the motors in a | |||
DIP switch 4 is set to "ON".(see | |||||
are possible. | staggered sequence. | ||||
| ill. on next page) |
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18 | D1 |