Pro Boat PRB3002 Owners Manual - Manual (Page 12)

1
It may be necessary to adjust the throttle trim knob
to stop the propeller from turning while the throttle
trigger is in the neutral position. Adjust the rudder trim knob so the rudder is
centered prior to operation. You may also need to
adjust the steering trim to make sure the boat runs
straight during operation.
Before and at the end of each run, make sure
all screws are tight and the propeller is free from
any entanglement.
Throttle Trim
Steering Trim
Section 6: Adjusting the Transmitter
Section 7: Maintenance