Brakes on a winch is a consumable item and therefore not covered under warranty. Doing a brake adjustment is also not covered under warranty and falls under winch maintenance.

• Check that all the connections are clean and tight on the winch motor. Carefully remove the cables off the winch motor and re-attach. (Do one cable at a time so you know where each one goes). You may have a bad connection between the cables and motor terminals.
  
  Check that all the connections under the control box cover is clean and tight.
  
  Check that the connections on the battery is clean and tight.
  
  Check that your rope is feeding onto the drum in the correct direction.
  
  Check that the main earth cable from the winch motor going back to the battery negative terminal. A bad earth could prevent your winch from working and could also cause damage to the winch motor.
  
  Check that your battery is larger than 650CCA (this is the minimum size that can be used with any 4X4 Electric Winch).
  
  A poor power supply could prevent your winch from working and could also cause damage to the winch motor.