Sea Ray 270 Select EX, Руководство пользователя

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2.11
S
ECTION
2 • G
ENERAL
B
OAT
A
RRANGEMENT
270 Select EX
B. T
RIM
T
ABS
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 (see Fig. 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 trim tab switch in one-
half second bursts until the boat is righted.
Using both switches to lower both tabs on a side-
to-side balanced boat will lower the bow, when on
plane, if the rear of the boat is highly loaded. Again,
use only short bursts of the trim tab switches to
adjust the trim.
When running at cruising speed, the trim tabs
should be fully up, unless the rear is heavily loaded.
In heavy following seas or when running in an inlet,
best maneuverability is obtained with a bow high
attitude. To be sure the tabs are full up, push the
bottom halves of the switches for several seconds.
R
UNNING
A
TTITUDE
L
IST
P
USH
BOW UP ...... TOP OF BOTH SWITCHES
BOW UP PORT TOP OF STARBOARD SWITCH
BOW UP STARBOARD TOP OF PORT SWITCH
BOW DOWN PORT BOTTOM OF STARBOARD SWITCH
BOW DOWN STARBOARD BOTTOM OF PORT SWITCH
T
RIM
T
ABS
(F
IG
. 2.11.1)
TRIM TAB
TRIM TAB PUMP
HYDRAULIC RAM
TRIM TAB
ZINC ANODE
ZINC ANODE
HYDRAULIC FLUID
RESERVOIR FILL
HYDRAULIC RAM
TRIM TAB ROCKER
SWITCH
(AT CONTROL
STATION)