Chrysler 75 and 85 HP Outboards Service Manual OB 3646, Page 190Get this manual
Subsection
_ POWER TRIMTILT UNIT
GENERAL
The power trim unit provides infinite trim adjustment throughout the normal lock-bar rangeThe trim unit is controlled by control switch mounted on the dash (standard) or on the throttle handle (optional) The switch has self-centering single pole, double throw designAn electric motor receives current from the control switchThe double pole switch directs current to one of two field windings which cause the motor to revolve clockwise (lift) or counterclockwise (lower)