2-6
Section 2
Helm Systems
OS 285
Trim Tab Maintenance
Marine growth can interfere with the proper
operation of the trim tab planes and actua-
tors. To reduce problems due to marine
growth, always return the trim tabs to the full
“UP” position after operating the boat and
periodically inspect and clean marine growth
from the actuators and planes.
Trim tabs are equipped with a zinc anode to
prevent galvanic corrosion. Electrolytes,
such as saltwater, cause galvanic corrosion
with different metals. Properly protect sub-
merged metal parts from seawater using
zinc anodes. The factory installed zinc
anodes, but replace the anodes when they
are 75% of their original size.
Refer to the Routine Maintenance chapter of
this manual for information on maintaining
zinc anodes and the trim tab owner’s manual
for additional maintenance information, fluid
specifications and operating instructions.
!
WARNING
Inspect and maintain control and
steering systems regularly. Do not
attempt adjustments unless you are
familiar with steering control system
service procedures. Control misad-
justment can cause loss of control
and severe engine or lower unit dam-
age.
!
CAUTION
Follow instructions in the owner's
information packet for hydraulic steer-
ing system operating, bleeding and
maintenance procedures.
Summary of Contents for OS 285
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Page 4: ...Operator Notes OS 285 ...
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Page 104: ...A 6 Operator Notes OS 285 ...
Page 106: ...B 2 Appendix B Maintenance Log OS 285 Date Hours Dealer Service Repairs Maintenance Log ...
Page 107: ...Maintenance Log B 3 Appendix B OS 285 Date Hours Dealer Service Repairs ...
Page 108: ...B 4 Appendix B Maintenance Log OS 285 Date Hours Dealer Service Repairs ...
Page 109: ...Boating Accident Report C 1 Appendix C OS 285 Boating Accident Report ...
Page 110: ...C 2 Appendix C Boating Accident Report OS 285 ...
Page 111: ...Float Plan D 1 Appendix D OS 285 Float Plan ...
Page 112: ...D 2 Operator Notes OS 285 ...
Page 116: ...E 4 Operator Notes OS 285 ...
Page 117: ...Schematics F 1 Appendix F OS 285 Schematics ...
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