Four Winds V475, Owner'S Manual

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Owner’s Manual Page 69 Steering Systems - Section G
G - 3 PROPELLER TORQUE
A boat with conventional drives, the propeller rotation
of a single engine operation will exert a directional
force on the steering sys tem. This can cause the
steering to be harder in one direction than the other,
and is called propel ler torque. Propeller torque can
also cause the boat to wan der (not follow a straight
line) when operat ed at low speeds. Wind, water and
currents can cause equivalent effects.
On the V475 with IPS, there are two counter-rotating
propellers on each propulsion unit which means there
are no lateral forces to consider and that tracking is
completely straight. Propeller torque is negated.
G - 4 STEERING SYSTEM MAINTENANCE
The V475 has an advanced steering system. Do not
change connectors, wiring or splice of the compo-
nents.
Periodic inspections (every 200 hours/at least once a
year) of the EVC system must be conducted. Service
must be done by approved Volvo Penta service
centers which have certified personnel with qualified
professional training. Contact your Four Winns dealer
for assistance.