18 Chapter 2: Components/Systems
4100 SCB Owner’s Manual Supplement
Controls
Steering & Shifter/Throttle System
Your yacht is equipped with a manual hydraulic steer-
ing system, therefore the system will not operate as
easily as a car’s power steering.
• The shifter/throttle controls are located at the helm.
• A rhythmic pulsing when turning the wheel is a
characteristic of the pump and is not a malfunction.
Also, when coming off a hard-over position, a resis-
tance may be felt, followed by a distinct sound.
This is a normal situation resulting from the release
of the check valve.
• The steering fluid level and pressure should be
checked regularly, according to the instructions and
maintenance suggestions outlined in the steering
manual.
Trim Tabs
Trim tabs control the longitudinal and lateral trim of your yacht at cruising speeds and are controlled by two rocker
switches at the helm. Before using the trim tab switches, we strongly urge you to read and understand the trim tab
operation manual included in your yacht’s owner’s packet. Observe the following:
• Once the best bow cruising trim is reached, use the port or starboard trim switches (one at a time) to correct
unequal lateral loading.
• Trim tab adjustment should be performed by several short touches to the switch rather than one long one. After
each short touch allow about five seconds for the hull to react.
• The trim tab hydraulic fluid reservoir is located in the engine compartment. The fluid level should be checked
periodically (at least once a year) and refilled as necessary.
Bilge
Bilge Pumps
Your yacht is equipped with three automatic impeller-type bilge pumps which are used to pump water out of the
bilge. Bilge pumps are controlled by automatic bilge pump float switches (autofloat switches) and/or switches at the
helm and are wired directly to the battery so they will function even when the yacht is completely shut down and
unattended.
HYDRAULIC STEERING SYSTEM LAYOUT
AFT
STEERING CYLINDER
ASSEMBLY (TYPICAL)
RUDDER BEARING
RUDDER (TYPICAL)
RUDDER ARM
(TYPICAL)
(TYPICAL)
TIE BAR
RUDDER BOX
(TYPICAL)
CONTROL HAZARD!
• Improper use of trim tabs may cause loss of control!
• DO NOT use trim tabs in a following sea as they may cause broaching or other unsafe han-
dling characteristics.
• DO NOT allow anyone unfamiliar with trim tabs to operate them.
• DO NOT use trim tabs to compensate for excessive unequal weight distribution.
WARNING!
!
Discharge of oil, oil waste or fuel into navigable waters is prohibited by law. Violators are
subject to legal action by the local authorities.
NOTICE
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