AquaCraft Rio 51Z - Manual (Page 6)

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3. Reinstall the battery door onto the bottom of the transmitter.
4. Turn the transmitter “ON” using the switch on the
transmitter’s side. The battery level indicator light
(LED) should glow red. If the light is fl ashing, the
batteries are low and need to be replaced.
INSTALLING THE RX BATTERIES
1. Locate the cowl locks at the rear of the hatch.
Turn the locks 1/4 turn to remove the hatch.
2. Using a standard screwdriver, remove the wire radio box
lid retainer by gently prying the wire over the holding tabs
on the side of the box and remove the radio box lid.