Power Trim & Tilt - Yamaha V-MAX SHO VF250 Maintenance Manual

STAY AT PEAK PERFORMANCE
Your outboard's Power Trim and Tilt unit changes the outboard's thrust
angle during operation for maximum performance of both your outboard and
your boat. It's electro-hydraulic, meaning an electric pump moves hydraulic
fluid upon command from the operator, tilting the thrust angle out or in.
It's positioned inside the engine bracket, meaning almost constant contact
with water, and, depending on where you boat, that can mean saltwater.
Still, under normal conditions, this system needs only minimal care
in order to function properly.
Remember to rinse. Make sure to include the PT&T
unit in your routine post-trip flushing and wash down procedure. For best effect,
first run over it gently with a sponge or a soft cloth soaped up with mild detergent
like Yamaclean . Then, spray the whole unit down with fresh, clean water.
®
Look and listen. Periodically grease the top of the trim rams on your PT&T unit to help keep them
safe from corrosion and to eliminate those annoying, but harmless, squeaking and popping noises.
Be sure to use a high-quality marine-formula grease, like Yamalube
wash off so fast.
Act and Retract. Keep the trim rams fully retracted when not in use to prevent corrosion build-up.
Engage the tilt lock mechanism built into the outboard's bracket, or install a Yamaha engine support
to hold the engine in the tilt-up position. Then, withdraw the tilt rams into the unit by pressing the
PT&T down button until they are fully retracted. This keeps all but the very tip of the ram immersed
in a bath of PT&T fluid and safe from corrosion. Liberally apply Marine Grease to the ram tips to
help keep them corrosion free, too.
Tip: The built-in tilt lock mechanism is for maintaining tilt for storage or periods of non-use only, such as when
mooring. Do not trailer using only this mechanism to support the tilted outboard.
Fill it up with the good stuff. The fluid in your PT&T system is under extreme pressure that can
cause molecular shear, which tears apart the fluid's molecules, resulting in a drastic loss of
lubricity. Don't use substitute oils like motor oil or power steering fluid. Yamaha Performance Power
Trim & Tilt Fluid is specially formulated to tolerate a specific amount of water ingestion and still
maintain proper operation, all while withstanding extreme pressures. It also contains special
anti-foaming agents the others don't, to maintain critical lubricity.
Check the valves and seals. If you see fluid on the outside of the PT&T unit, or if your outboard
won't stay tilted up (or stay tilted out when running), it may mean that the seals or internal valves
are in need of inspection. Have the unit inspected by an authorized Yamaha Marine dealer and, if
necessary, disassembled and repaired.
Note: All the items in this catalog are available through your local authorized Yamaha Marine dealer.
More information can be found at Maintenance.YamahaOutboards.com.
POWER TRIM & TILT
Scan to see a video about
power trim and tilt maintenance.*
Marine Grease, so it won't
®
17