Four winns V458, Owner'S Manual

Page: 59 / 189

Owner’s Manual Page 57 Engines, Drives and Instrumentation - Section E
The running angle can be controlled through the use
of the Interceptor electronic trim tabs. See Figure E6.
Figure E6: Control Panel - Trim Tabs
A. Trim Tabs Control Operation
The control panel has four buttons. By pressing the
various buttons the results are as follows. See Figures
E7. Refer to manufacturer’s operating instructions for
additional information.
1) The upper button lowers the blades in parallel
(“BOW DOWN”).
water intake filters be installed. Refer ence Section P-3
- Equipment Installation, in this manual for installa tion
instruc tions and consult your Four Winns dealer
regard ing any special equip ment that may be re-
quired.
Never operate your engine without a
thermostat. Engine damage can occur and is
considered operator negligence and therefore
not covered under the engine warranty.
If engine should overheat, turn off engine,
look for obstructions to water pick-up. If any
obstructions are found, clear the obstructions
and run engine again at 1500 RPM in neutral
and check temperature gauge to verify
condition. If overheating still occurs, return to
port at low RPM to prevent excessive over-
heating and engine damage. Consult with
your certified engine dealer for service.
NOTICE
When laying up the boat for winter it is
important that the seawater cooling system be
flushed with fresh water and inhibited so that
deposits do not dry and to prevent the buildup
of salt crystals. Please consult your engine
owner’s/operator’s manual for proper engine
and cooling system winterization procedures.
E - 6 RUNNING ANGLE & TRIM TABS
Hull planing surfaces have the least amount of drag at
a three to five degree angle with the water. This is the
pre ferred running angle when boating. The running
angle has a signifi cant impact on top speed and
handling. Heavy load or certain water conditions may
make it difficult to achieve the optimum running angle.
See Figure E5.
3
0
To
5
0
Boat Properly Trimmed
Boat Too High - Trim Bow “Down”
Boat Too Low - Trim Bow “Up”
Figure E5: Running Angle
Trim Tabs Control