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Message ID: 166     Entry time: Thursday, February 08, 2024, 08:50
Author: Adam Newsome 
Category: Elevation Jack 
Type: Maintenance 
Subject: Elevating system - station 10 motor contactor issue 

It was observed during lid up operation on 2024-02-08, approximately halfway through raising the lid, that the motor contactor for station 10 located within its small motor panel stopped functioning. The symptoms observed were: entire system stopped since station 10 lagged behind (approx. 150 counts on counter), station 10 could not be jogged locally in either direction, the control signal to activate the motor was being sent to the contactor when attempting to jog, but no motion occurred.

After locking out the panel, the contactor was disassembled and reassembled by an electrician. The system was powered back on and the motor functioned normally. The explanation as to why the issue occurred in the first place is unknown but it is likely attributed to years of infrequent usage causing it to "stick" and/or corrosion buildup.

In any case, it is recommended that all contactors be inspected during the year of 2024 and that at least station 10 be replaced, and spares for other stations procured.

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