This is a maintenance manual for OMC Stringer sterndrives. The manual introduces the standard equipment, electro-mechanical power tilt system operation principle and repair method.
This manual covers the theory of operation and repair for the standard electro-mechanical power tilt system found on OMC Stringer sterndrives manufactured between 1963 and 1984. The system is designed to provide a quick-response, power-operated lift of the sterndrive leg and includes a mechanical clutch to absorb shock from underwater obstructions.
| Tilt Range | 75-degree tilt or lifting |
|---|---|
| Lock-to-lock Time | under 4 seconds |
| Motor Voltage | 11 volts DC |
| Motor Current | 120 Amperes |
| Fuse Rating | 100-Ampere |
| Cover Torque | 7 ft-lbs |
No, using the tilt for thrust trimming will result in premature wear of the ball-gears.
It allows the tilt motor 90 degrees of rotation before engaging the shaft to minimize overload on start.
The UP circuit uses blue wires and the DOWN circuit uses green wires.