2025-03-28

Greasing the Lead Screw

Overview
The Acme screw, which is used to lift the Powerwall, comes pre-greased from the factory, but it is necessary to apply more grease to it over time in order to prolong the life of the lifting system. The screw should be greased:
  • If the operator notices it being dry or squeaky when lifting.
  • A minimum of every 6 months or 250 Powerwall installs, whichever comes first.

Tools and Equipment

  1. Use a rag to wipe down the lead screw and remove the old grease.
  2. Apply a bead of new grease along the length of the lead screw.
  3. Wear nitrile gloves and spread the grease along the screw by hand.
  4. Drive the lead screw all the way to the top and then all the way to the bottom to help distribute the grease evenly along the screw, until it looks similar to the image below.
  5. Use a rag to clean any excess grease accumulated at the top or bottom.