1993 Johnson Evinrude "ET" Electric Outboards Service Manual, P/N 508280, Page 130Get this manual
Installation
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1Place the motor rest, then the strap, and then the deck bracket on deckThe strap buckle must be on the inboard side (toward the centerline) of the boat2Install four screws and tighten securely
3Position the trolling motor assembly in the motor tube bracket4Tighten adjustment knob securely
5Hand Control Models Install alignment plateApply OMC Screw Lock to the screws and tighten screws securely