Four winns SL Series Owner's Manual page 56

cause substan tial stee ring and handling difficul ties. Be
extreme ly careful when running in a following sea. The
effect of trim tabs is ampli fied under such condi tions.
Steer ing and handling difficulties can result from im-
proper trim tab usage, espe cially in a following sea. If
unsure of proper trim tab positioning, raise the trim tabs
to the full-up position.
When run ning at high en gine speeds, be sure
the trim tabs are in the full up posi tion. Trim tab
ac tion should be only enough to com pen sate
for any list ing. Trim tab ad just m ents at high
speeds are ex tre mely critical. Be prepared to
slow down should handling difficulties arise.
When running in a displacement (very slow speed)
mode, better efficiency will be obtained with the trim
tabs in the full-up position.
C. Trim Tab Maintenance
Check the fluid level of the trim tab reservoir often.
Always keep the fluid level between the designat ed
marks on the trim tab pump-reservoir. Refer to the
manufacturers information for specifi cations on the
type of fluid to be used and other operation and mainte-
nance infor mation.
E - 7 INSTRUMENTATION
The helm stations on Four Winns
equipped with a complete set of individual engine
instrument gauges. These instrument gauges allow
the boat operator to constantly monitor the opera tional
condi tion of the engine. Close observa tion of these in-
strument gauges could save the engine from damage.
A. Tachometer/Hour Meter Combination Gauge
The tachometer indicates the speed of the engine in
revolutions per minute (RPM). This speed is not the
boat speed or necessarily the speed of the propel ler.
The tachometer may not register zero with the ignition
key in the OFF position.
NOTICE
Never exceed the maximum recommend ed
operat ing RPM of your engine. Main taining
maximum, or close to maximum RPM for
extended periods can reduce the life of the
engine.
Engines and Instrumentation - Section E
® models are
Some engines are equipped with devices that limit
engine RPM in accordance with the oil pres sure, or
engine temperature. Refer to the engine manual
included in the owner' packet for additional informa-
tion.
The tachometer must be set for different engines
installed. This is typically done at the factory. The
tach-ometer gauge is shown along with the table
detailing the tachometer settings. See Figure E4.
Figure E4: Tachometer Settings
The tachometer/hour meter combination gauge
allows for hour meter viewing at the helm. See Figure
E5. The hour meter provides a numeric record of
elapsed engine operating time. This information is
important in determining scheduled maintenance
intervals, ship's log data, cruise information, etc.
The hour meter is connected to the ignition switch.
Be sure the ignition switch is in the OFF position
when the engine is not operating or the hour meter
will record additional time.
Owner's Manual Page 53