to be 50% of their original size. Certain outdrives also have zincs. The 50% guideline should be used for
them as well (see the manual for locations).
e)
Drive belts should be checked for wear and cracking during the daily tightness check. Where drive belts are
used in sets of belts, replace the set to prevent under-tension of the older belts. Uneven tensions in the set
will result in more rapid wear out of the set.
f)
Hoses should be checked with the equipment served in operation. Suction hoses are provided with means to
prevent collapse of the hose. They should be checked to be sure that they are staying round, and replaced
when they appear to be flattening. Hose clamps should be replaced when they appear worn at the threads.
g)
Packing glands should be tightened in accordance with Section 5.2.2.
h)
Batteries should have distilled water added whenever the electrolyte level falls below the indicated full mark.
They should never get to the point where the plates are not covered. Batteries should be kept fully charged to
prevent plate deterioration, and in the winter, a charged battery will not freeze and crack as readily as a
discharged battery.
i)
Life jackets should never be stowed in a wet condition. If they have been used or if condensation has
dampened them, they should be thoroughly air dried before restowing.
j)
Corrosion should be cleaned from electrical connection whenever noticed, but at least yearly. Any wires on
which age has caused cracking or deterioration of insulation should be replaced.
k)
Winch cables corrode from within. The quarterly check performed in 6.1 should include twisting the cable
slightly to be able to view the interior. It should be checked at several places along its length. Corrosion and
strand breakage mean a weakened cable. The cable can be tested by pulling it to 1.5 times the greatest load
it will be used for. Deteriorated cable or cable that fails under test should be replaced to prevent possible
personal injury or equipment damage.
l)
Propeller nuts should be checked tight every time
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