2.11
S
ECTION
2 • G
ENERAL
B
OAT
A
RRANGEMENT
300 Sundancer
®
(335 Sundancer
®
)
E
FFECTS
OF
P
OWER
T
RIM
(F
IG
. 2.11.1)
Down
Up
Trim
Down
Up
Trim
Down
Up
Trim
D. T
RIM
T
ABS
The trim tabs (Figure 2.12.1) are DIFFERENT from
the stern drive unit trim control. The trim tabs are
two flat plates, hinged below the water line on the
transom at the rear and are raised and lowered
hydraulically by using the rocker switches located
at the helm. (Figure 2.8.1).
The trim tabs are used to adjust the sideways listing
of the boat due to uneven loading, a strong cross
wind or propeller torque. The twisting effect of
propeller torque is especially pronounced when
running the engine at high horsepower output. To
correct the listing, adjust the trim tabs to level the
boat. When the boat is level, right to left, the steering
effort will be the same for right and left turns.
Lower the trim tabs on the listing (lower) side by
pushing the top half of the rocker switch in one-half
second bursts until the boat is righted.
C. T
RAILER
S
WITCH
The trailer switch (power trim switch) (Figure 2.9.2)
is not to be confused with the power trim function.
The trailer switch is to be used only when the
engines are OFF.
The trailer switch allows the drive unit to be raised
for trailering, beaching and launching. To operate,
press and hold the trailer switch (Figure 2.11.2) until
the drive unit reaches the end of upward travel. The
mechanism that raises the lower unit will stop
operating at the end of the upward travel. To bring
the drive unit down into boating position, push the
power trim switch down.
If you raise the stern drive up to far while you are
on plane, you could cause a loss of speed and
power due to condition called propeller “ventilation.”
If this happens, there will be a sudden increase in
engine RPM and loss of speed. Do not let this
condition exist. Immediately reduce your engine
RPM and trim the outdrive DOWN slightly until
engine slows down and you regain forward speed.
The trim gauge indicates the position of the stern
drive relative to the transom.
REFER TO YOUR ENGINE OPERATOR’S
MANUAL FOR PROPER TRIM GAUGE SETTING.
S
TERN
D
RIVE
T
RAILER
S
WITCH
(F
IG
. 2.11.2)
STERN DRIVE
TRAILER SWITCH
Summary of Contents for 300 Sundancer
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