CHAPTER 13
MAINTENANCE SCHEDULE
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34z
50 hours if operated at idle for prolonged periods of time).
• Check the continuity circuit for loose or damaged connections. If equipped with
MerCathode®, test the unit output.
• Check the engine alignment.
• Torque the engine mounts.
• Check the electrical system for loose, damaged, or corroded fasteners.
• On driveshaft extension models, lubricate the drive shaft U joints, transom end
(tailstock) bearings, and engine end (output) bearings.
• Inspect the condition and tension of the belts.
• Inspect the cooling system and the exhaust system for damage or leaks. Check both
systems hose clamps for tightness.
• Disassemble and inspect the seawater pump and replace worn components.
• Clean the seawater section of the closed cooling system. Clean, inspect, and test the
pressure cap. Check the anodes and replace if 50% eroded.
• Replace the air filter.
EVERY 2 YEARS
• Replace the engine coolant.
EVERY 500 HOURS OR 5 YEARS (WHICHEVER OCCURS FIRST)
• Clean the aftercooler core.
EVERY 1000 HOURS OR 5 YEARS (WHICHEVER OCCURS FIRST)
• Clean the fuel tank.
12.2
FLUIDS See EOM 55-127
13.1
START OF SEASON
[commissioning]
13.2
END OF SEASON
Most facilities will not require additional information before hauling the boat with a Travelift or
crane, but if this is the case, use the included Lifting Diagram.
The end of the season is a good time to have the bottom power-washed and to check all thruhulls
and seacocks for growth. Careful inspection of all underwater hardware at this point may avoid a
potential problem in the future. This is also a good time to check the zincs of the boat and replace
as necessary.
If the boat is to be stored in a place where the ambient temperature may fall below the freezing
point, it must be winterized. Plumbing lines need to be emptied and anti-freeze added where
applicable. Consult also the engine operator’s manual.
