The motorised tilt/trim assembly that raises and lowers your motor by tilting it and trims your motor so that your boat has the optimum relationship to the water for economy and safety is a bolt-on unit. Using the tilt/trim assembly substitutes for muscle power and provides the convenience of making changes in your motor's position from your control station. When repairs are needed, you can remove the tilt/trim assembly on an Evinrude 70 without a trip to your mechanic.
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Things you need
- Jack stand
- 3/4-inch open-end wrench
Raise the motor to the fully tilted position. Engage the tilt lock, securing the motor in the full-tilt position. Place a jack stand beneath the lower unit of the motor and raise the stand to hold the motor. Use a 5/16-inch open-end wrench to remove the hex nut from the battery post marked with the letters "NEG" or a minus sign and lift the black cable off the post.
Loosen the screws holding the blue wire and the green wire to the pump motor connector housing with a screwdriver. Remove the wires from the connector. Remove the spring clip from the end of the tilt/trim cylinder's pin with a pair of pliers. Knock the pin from the stern bracket with a slide-hammer.
Remove the 3/4-inch locknut from the angle adjustment rod with a 3/4-inch open-end wrench. Pull the rod away from the stern bracket. Pull the trim/tilt assembly away from the stern brackets
Loosen the motor mounting screws and disconnect the ground lead. Lift the tilt/trim assembly away from the outboard.
Tips and warnings
- Removing the negative battery cable isolates the electrical circuit from the boat's common ground, making it "electrically safe" to work on the boat's electrical or mechanical systems. Always use a 5/16-inch open end wrench when removing the nut from the negative post of a marine battery. The positive post uses a 3/16-inch nut. If the lettering or cable colour is obscured by dirt or oil, the 5/16-inch wrench won't fit on the positive post.
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