Hydraulics - Seafish

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The rubber cover on flexible hoses may crack or split without
actually leaking. Any oil dampness is a sign that a crack may be
there and the hoses should be replaced.
If a connection is leaking, tighten the joint only until the leak
stops.
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Do not over-tighten -you may strip the threads and/or
distort the parts.
If the joint still leaks the connector must be replaced or re-sealed.
When replacing a coupling or a flexible hose use thread tape
wrapped around the male threads leaving the first two threads
clear.
Also use two spanners, one to hold the coupling or hose, and the
other to tighten the nut. This will prevent the hose from being
twisted.
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A twisted or kinked hose may cause a restriction in the flow
of oil.
After correcting any leaks run the system until it is warm and
check that no further leaks have developed. You should then
re-check the system oil level and top up if necessary.
Air Leaks into the suction lines can also occur. These can be
detected by pouring a small quantity of oil overthe suspect area.
If the noise or bubbling in the lines stops then you have located
the leak.
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