Gen2/Motor Controller/Removal

This describes removing the Sevcon controller.

Warning:

This is a placeholder page

Pre-requisites

• Perform a lockout on the powertrain.
• De-energize the controller.

Tools

13mm hex wrench

Torque wrench

Steps

1. Perform a lockout on the powertrain.
2. Verify the controller is fully de-energized.
3. Disconnect the AMPSeal 34-pin connector at the front/head of the controller to disable its operation.
4. Remove the power terminal bolts with the 13mm hex wrench.

   Warning:

   Perform this operation as gently as possible, since the bolts conduct full powertrain current and are torqued low-spec at 12ft-lbs.

   Immediately cover the cable leads in a strong insulative sleeve to ensure that nothing conductive contacts them.

   Consider arc-over risks beyond simple contact if the system were energized for any reason.

   Warning:

   Safe cover specifications for these leads is not yet determined. Arc flash can be lethal or destructive to equipment.

5. Unbolt the controller from the frame's tail horns.

   Disclaimer:

   TBD

6. Unbolt the controller heatsink from the controller.

   Disclaimer:

   TBD