The Installation Guide recommends placing the thruster as far forward as possible for leverage and as deep as possible (at least 1x the tunnel diameter below the waterline) to prevent air suction.
A bow thruster is a high-torque mechanical system operating in a harsh saltwater environment. The manual serves as your primary resource for: Preventing motor burnout from over-cycling. Ql Bow Thruster Manual
Remove propellers annually to clean and lubricate seals with silicone grease The Installation Guide recommends placing the thruster as