Trailering Outboard; Tilting Outboard Up And Down Manually - Mercury 40 Service Manual

Trailering Outboard

WARNING
Excessive engine trim angle will result in insuffi-
cient water supply to water pump causing water
pump and/or powerhead overheating damage.
Make sure that water level is above gear housing
water intake holes whenever engine is running.
While operating "up" circuit, the cylinder rod will con-
tinue to tilt the outboard to a full up position for trailer-
ing.
90-852572R1 JANUARY 1998
Tilting Outboard Up and Down
Manually
WARNING
Before loosening the manual release valve, make
sure all persons are clear of engine, as engine
will drop to full "down" position when valve is
loosened.
With power trim installed, the outboard can be raised
or lowered manually by opening the manual release
valve 3 to 4 turns (counterclockwise).
a - Manual Release Valve
a
55170
MID-SECTION - 5D-5