Quantcast Flexible Hydraulic Hose And Fitting Assemblies And Flexible Couplings

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14.3 PERIODIC INSPECTION AND TESTS
14.3.1 Scope
This section describes various operational tests that are recommended to be performed on an
annual basis. In addition, there are other tests and inspections that should be performed every
three years. It should be specifically documented on the inspectors report that these tests have
been performed and the dates the tests were made.
14.3.2 Flexible Hydraulic Hose And Fitting Assemblies And Flexible Couplings
Examine flexible hose and fittings assemblies, and flexible couplings as previously described.
Flexible hydraulic hose and fitting assemblies should be subjected to a test at three times the
working pressure. After six years, they must be replaced; the replacement date should be marked
on the hose.
14.3.3 Pressure Tanks
Pressure tanks of hydraulic lifts should be thoroughly cleaned and inspected internally and
subjected to a hydrostatic test. The tank should be subjected to a hydrostatic pressure by
gradually raising the pressure until it reaches a value of 50% in excess of working pressure, but
not greater. The test pressure should be applied for at least one minute and all parts of the tank
including seams, rivets, and fittings should be observed while under pressure. Any leaks or
evidence of impending failure should be noted. Pressure tank inspections made by licensed
boiler inspectors are not required to be witnessed by the elevator inspector. He/she should only
determine whether the required inspection has been made and that a certificate has been issued
by the boiler inspector.
14.3.4 Relief And Check Valve Settings
Pressurize system, verify that relief and check valve settings are operating at specified
pressures; adjust as appropriate and install new lead seals.
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