GE Industrial Solutions WattStation Pedestal EVSE Charger Operation and Maintenance - Manual (Page 48)

WattStation™ EV Charger User Manual
4488 GE Energy ©2012 GE Company All Rights Reserved
7 Maintenance Notes
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This unit needs maintenance for trouble free operation over its lifetime. The Cord reel operates in the
temperature range -15 deg C to +50 deg C. When the ambient temperature drops below 0 deg C, the
retraction of the cord might take longer time when compared to retraction at temperature greater
than 0 deg C. When the cord reel is operated in an environment prone to dirt and debris, there is
possibility of dirt and debris from the ground getting into the cord reel unit through the cable. The
brush does take care of removing dirt and debris that comes along with the cable but over a period,
retraction will slow down if these deposits build upon the brushes and on the rollers mounted behind
the cable exit slot. To improve retraction, need occasional cleaning as follows:
1. Check for any dirt, debris or small stones deposits on the brush or bellows.
2. Clean up the brush and bellows using any cleaning brush
3. Check out the top and bottom rollers behind the brush for bi-directional rotation
4. Vacuum the area around the bellows and brush.
At step 3, if the rollers are not rotating in both directions, may need additional
maintenance as follows:
1. Shutdown the power supply to the pedestal WattStation
2. Open the Access Door (See Figure – 7.1)
3. Remove the cord drum from the unit (See Figure – 7.2 and Figure – 7.3)
4. Inspect the cable bracket frame assembly that houses the rollers, brushes and bellows.
5. Remove the brush first, that gives access to rollers (See Figure – 7.4)
6. Remove the bracket that houses the bellows and rollers (See Figure – 7.5 and 7.6)
7. Observe for any dirt or debris in the housing bracket behind the rollers.
8. Remove those dirt and debris and ensure the rollers are free of any deformations
9. If deformations are found, it’s time to replace the rollers. Otherwise, proceed to step 10.
10. Close the access door and restore the power
11. Check pull, retract operation, and ensure it operating as normal.
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Periodically check the cable for any insulation break down or any other signs of damage and if the
cable is frayed or damaged, change the cable drum assembly.
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Periodically check the EV Connector for any breaking, cracking or any other indications of damage. If
observed, replace the cable drum assembly.
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Dirt and debris may collect on Top cover assembly surface, it is recommended to clean the top
surface with cleaning agent (compatible with plastic surface) periodically as needed.