iRobot Verro 300 Owner's Manual page 16

Maintenance and Adjustment
Untwisting the Floating Power Cord
Check the floating power cord periodically for external damage.
Verro is designed to travel around your pool in a way that reduces any
tendency for the cord to become twisted. However, if the cord tangles or
kinks, and will not lie properly on the surface of the water, it may be neces-
sary to untwist it using the Detangler.
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Unplug the Power Supply. (Please keep the plug away from contact
with water.) Unplug the floating power cord from the Power Supply.

Place the robot so that you can walk away from it for 50 feet.

Holding the Detangler in your hand, walk away from Verro. The
Detangler allows the floating power cord to rotate in the handgrip so
that it untwists as you walk.

If the cord is not fully untwisted by the time it is straight, simply
give it a few more turns by hand.
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iRobot Verro Owner's Manual
(cont...)