Helm Systems
2-3
Section 2
C 280 / S 280 / C 310 / ST 310
2.6 Steering System
The steering system is hydraulic and made
of two main components: the helm assembly
and the hydraulic cylinder. The helm unit
acts as both a fluid reservoir and pump.
Turning of the helm, or steering wheel,
pumps the fluid in the hydraulic hoses and
activates the hydraulic cylinder causing the
motors to turn. A slight clicking sound may
be heard as the wheel is turned. This sound
is the opening and closing of valves in the
helm unit and is normal. Refer to the steer-
ing manufacturer owner’s manual for spe-
cific information on the steering system.
Dual engine outboards are coupled at the til-
ler arms by a tie bar. The outboards must be
aligned with each other to provide maximum
stability on straight ahead runs and proper
tracking through corners. If damage has
ever occurred with the outboards or steering
system, the outboards may have to be
realigned.
Power Steering (Optional)
The power steering system uses an electri-
cally controlled hydraulic pump to provide
power to the standard hydraulic steering
system. Additional components are a helm
mounted power steering switch and a
hydraulic pump. The switch activates the
power steering feature. Manual steering is
always available regardless of the switch
position. To reduce the sensitivity of the
steering, turn off the power steering at low
speeds. To conserve battery power, because
of limited engine charging output during
extended periods of slow speed operation,
the power steering should be turned off.
Refer to the Teleflex® Power Assist manual
for more information.
Tilt Helm
A tilt helm, steering wheel may be installed
on your boat. To tilt the helm, depress the
lever located in the base of the helm and
lock into position. DO NOT adjust when the
boat is underway.
2.7 Trim Tabs
The trim tabs are recessed into the hull on
the transom. Switches are used to control
the trim tabs. The switches are labeled and
control bow up and down movements. They
also control starboard and port up and down
movements. Bow up and bow down will con-
trol the hull planning attitude, while port and
starboard up and down provide control for
the hull trim side to side.
Before leaving the dock, make sure that the
tabs are in the full “UP” position by holding
the control in the bow "UP" position for ten
seconds. Do not continue to operate the
switch when the tabs are fully up or down.
Establish the intended heading and cruise
speed before attempting to adjust the hull
attitude with the trim tabs. Always make
slight adjustments to reduce over adjust-
ments. After stabilizing speed and direction,
move the trim tabs to achieve a level side to
side running attitude being careful not to
over trim.
After depressing a trim tab switch, always
wait a few seconds for the change in the trim
plane to take effect.
!
CAUTION
Some autopilot systems have engine
position sensors mounted to the
hydraulic steering cylinder. The sen-
sor bracket can contact the transom
when the engines are fully tilted up
and damage the autopilot, engine rig-
ging or transom. Monitor the bracket
and rigging while engines are tilting to
determine the best position for your
application.
Engine Stop Switch (Typical)
Summary of Contents for C 280
Page 26: ...Operator Notes 22 C 280 S 280 C 310 ST 310...
Page 36: ...Operator Notes 2 6 C 280 S 280 C 310 ST 310...
Page 42: ...Operator Notes 3 6 C 280 S 280 C 310 ST 310...
Page 48: ...Operator Notes 3 6 C 280 S 280 C 310 ST 310...
Page 58: ...4 10 Operator Notes C 280 S 280 C 310 ST 310...
Page 66: ...6 2 Operator Notes C 280 S 280 C 310 ST 310...
Page 74: ...8 2 Operator Notes C 280 S 280 C 310 ST 310...
Page 106: ...12 6 Operator Notes C 280 S 280 C 310 ST 310...
Page 112: ...Operator Notes A 6 C 280 S 280 C 310 ST 310...
Page 115: ...Maintenance Log B 3 Appendix B C 280 S 280 C 310 ST 310 Date Hours Dealer Service Repairs...
Page 116: ...Appendix B Maintenance Log Date Hours Dealer Service Repairs B 4 C 280 S 280 C 310 ST 310...
Page 117: ...Boating Accident Report C 1 Appendix C C280 S280 C310 ST310 Boating Accident Report...
Page 118: ...C 2 Appendix C Boating Accident Report C 280 S 280 C 310 ST 310...
Page 119: ...Float Plan D 1 Appendix D C 280 S 280 C 310 ST 310 Float Plan...
Page 120: ...Operator Notes D 2 C 280 S 280 C 310 ST 310...
Page 124: ...Operator Notes E 4 C 280 S 280 C 310 ST 310...
Page 125: ...Schematics F 1 Appendix F C 280 S 280 C 310 ST 310 Schematics...
Page 126: ...F 2 Appendix F Schematics C 280 S 280 C 310 ST 310...
Page 127: ...Schematics F 3 Appendix F C 280 S 280 C 310 ST 310...
Page 128: ...F 4 Appendix F Schematics C 280 S 280 C 310 ST 310...
Page 129: ...Schematics F 5 Appendix F C 280 S 280 C 310 ST 310...
Page 130: ...F 6 Appendix F Schematics C 280 S 280 C 310 ST 310...
Page 131: ...Schematics F 7 Appendix F C 280 S 280 C 310 ST 310...
Page 132: ...F 8 Appendix F Schematics C 280 S 280 C 310 ST 310...
Page 133: ...Schematics F 9 Appendix F C 280 S 280 C 310 ST 310...
Page 134: ...F 10 Appendix F Schematics C 280 S 280 C 310 ST 310 S 280 S 310...
Page 135: ...Schematics F 11 Appendix F C 280 S 280 C 310 ST 310...
Page 136: ...F 12 Appendix F Schematics C 280 S 280 C 310 ST 310...
Page 137: ...Schematics F 13 Appendix F C 280 S 280 C 310 ST 310...
Page 138: ...F 14 Appendix F Schematics C 280 S 280 C 310 ST 310...
Page 139: ...Schematics F 15 Appendix F C 280 S 280 C 310 ST 310...
Page 140: ...F 16 Appendix F Schematics C 280 S 280 C 310 ST 310...
Page 141: ...Schematics F 17 Appendix F C 280 S 280 C 310 ST 310...
Page 142: ...F 18 Appendix F Schematics C 280 S 280 C 310 ST 310...
Page 143: ...Schematics F 19 Appendix F C 280 S 280 C 310 ST 310...
Page 144: ...F 20 Appendix F Schematics C 280 S 280 C 310 ST 310 Typical...
Page 145: ...Schematics F 21 Appendix F C 280 S 280 C 310 ST 310...
Page 146: ...F 22 Appendix F Schematics C 280 S 280 C 310 ST 310 C 280 S 280...
Page 147: ...Schematics F 23 Appendix F C 280 S 280 C 310 ST 310...
Page 148: ...F 24 Appendix F Schematics C 280 S 280 C 310 ST 310 C 310 S 310...
Page 149: ...Schematics F 25 Appendix F C 280 S 280 C 310 ST 310...
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