The tether can be disconnected for easier travel, storage or if changing to another length.
Remove the battery cover and unscrew the 3 screws on that holds the side cover and open it.
Unscrew the screws holding the tether connector in place and unscrew the shackle.
Connecting the tether
Make sure that the o-ring on the tether connector is clean and add silicone grease to it.
Tighten the screws holding the tether connector and make sure that the tether is routed as shown in the illustration and assemble the shackle.