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2.12
S
ECTION
2 • G
ENERAL
B
OAT
A
RRANGEMENT
320 Sundancer
®
(355 Sundancer
®
)
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. (Figure 2.9.1).
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
. 2.12.1)
TRIM TAB
TRIM TAB PUMP
HYDRAULIC RAM
TRIM TAB
ZINC ANODE
ZINC ANODE
HYDRAULIC FLUID
RESERVOIR FILL
HYDRAULIC RAM
;;;
;;;
;;;
yyy
yyy
yyy
TRIM TABS
;;;
;;;;
;;;
;
;
;;;
;
;
yyy
yyyy
yyy
y
y
yyy
y
y
TRIM TAB ROCKER
SWITCH
(AT CONTROL
STATION)
Summary of Contents for 320 Sundancer
Page 1: ...320 Sundancer Owner s Manual Part Number MRP1803608 Sea Ray Owner s Manual...
Page 2: ......
Page 4: ...320 Sundancer 355 Sundancer ii...
Page 30: ...1 18 SECTION 1 SAFETY 320 Sundancer 355 Sundancer THIS PAGE LEFT INTENTIONALLY BLANK...
Page 34: ...1 22 320 Sundancer 355 Sundancer THIS PAGE LEFT INTENTIONALLY BLANK...
Page 62: ...3 12 SECTION 3 USING YOUR BOAT 320 Sundancer 355 Sundancer THIS PAGE LEFT INTENTIONALLY BLANK...
Page 88: ...5 6 SECTION 5 FUEL SYSTEM 320 Sundancer 355 Sundancer THIS PAGE LEFT INTENTIONALLY BLANK...