Remove the guards covering the drive components.
Rotate the drive wheel to place the master link (3) in an accessible position between the two sprockets.
Slide the retaining clip (1) of the master link (3) until the reliefs are centered over the link pins. Remove the clip and side plate (2).
Slide the master link out and remove the chain.
Install new chain.
Slide the pin portion of the master link (3) in to each end of the chain to be connected.
Slide the side plate (2) portion of the master link on to the pins.
Slide the retaining clip (1) on to the pins until the clip snaps securely in to place.
The master link should be installed with the open end of the retaining clip (1) facing away from the direction of rotation (4).