If the carbon brushes have reached their wear limit, they must be replaced so that trouble-free running of the motor is ensured.

   Detach connection cable.

   Remove bayonet nut of the control cable.

   Detach control cable.

   Detach the SL safety clip from the bolt.

   Hold the chain box firmly and pull out the bolt.

   Remove the chain box.

   Unscrew the motor cover from the housing.

   Unplug the connector of the motor connection cable from the circuit board.

   Remove seal.

   Turn housing over.

   Unscrew the M5 fillister-head screws (2x) from the gearbox cover and detach the motor.

   Pull the motor out of the housing.

   Pull the blue strand of the motor connection cable from the carbon brush.

   Pull the brown strand of the motor connection cable from the carbon brush.

   Pull the carbon brushes (2x) out of the motor.

   Push new carbon brushes (2x) into the motor.

   Push the brown strand of the motor connection cable onto the carbon brush.

   Push the blue strand of the motor connection cable onto the carbon brush.

   Insert motor in the housing.

When doing this, ensure that the motor shaft fits precisely in the hole of the plastic pinion of the gear unit.

   Press motor into the plastic pinion as far as it will go.

By moving the fan blades slightly back and forth, the square-end on the motor shaft can be brought together with the square-end in the plastic pinion.

●   The motor shaft sits precisely in the plastic pinion of the gear unit.

   Turn housing with motor over.

   Screw the M5 fillister-head screws (2x) into the gear unit and screw the motor tight. 6 Nm.

   Press seal flush onto the housing.

   Plug the connector of the motor connection cable into the circuit board in the motor cover.

   Hold the motor cover on the housing.

   Screw the motor cover tight with M4x55 fillister-head screws (3x) and a M4x20 fillister-head screw (1x). 5 Nm.

   Turn the chain box so that it appears as shown in the figure.

   Place the chain in the chain box.

   Use the bolt to install the chain box on the chain hoist.

   Push the SL safety clip onto the bolt.

   Insert the connector of the connection cable into the chain hoist.

   Slide on the bayonet nuts of the pendant control.

   Insert the bayonet connector in the chain hoist.

   Tighten the bayonet nuts of the pendant control.