Chrysler 70, 75 and 85 HP Outboard Motors Service Manual OB 3438, Page 206Get this manual
Subsection
_ POWER TRIMTILT UNIT
GENERAL
The power trim unit (standard on Charger, optional on others) provides infinite trim adjustment throughout the normal lock-bar rangeWhen the trim cylinder is fully extended, hydraulic pressure is routed to second cylinder (tilt cylinder) which raises the engine for beaching, launching or traileringThe 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 design An electric motor receives current from the control switch The double pole switch directs current to one of two field windings which cause the motor to revolve clockwise (lift) or counterclockwise (lower)