B3. Periodic Inservice Inspection and Testing Programs. Each operating office using
this equipment shall establish programs for periodic inservice inspection on a regular
basis. These programs shall include, but not be limited to, the following inspections
and tests of all vehicle mounted insulated aerial lift equipment.
B3.1. Inspection and Nondestructive Testing. At approximate 12-month intervals the
following inspection and nondestructive tests for vehicle mounted insulated aerial lift
equipment shall be developed and conducted in cooperation with the equipment
manufacturer and/or a recognized and reputable nondestructive testing organization.
B3.1.1. A complete visual inspection shall be made in accordance with a written
format, complying with ANSI B30.5, B30.15, and A92.2, as applicable, on the entire
unit and subframe area under the unit. Fiberglass and steel boom members, and all
pin and wear points, shall be carefully inspected for deformation, cracks, or
excessive wear. Hydraulic lines and fittings shall be checked for cracks and leaks.
B3.1.2. Ultrasonic inspections shall be made on all accessible structural pins,
including the outrigger pins.
B3.1.3. Magnetic particle and/or fluorescent dye penetrant inspections shall be made
on critical welds and castings, and other suspected areas.
B3.1.4 Acoustic emission tests (refer to A2.2.2 for ASTM reference test standards)
shall be performed on each unit.
B3.1.5. A dielectric test shall be performed on the oil in each hydraulic system in
compliance with ASTM D 1816 test method with a minimum acceptable dielectric
breakdown voltage of 15 kV. ASTM D 877 may be substituted but, a breakdown value
has not been established. We assume the value to be between 15 and 20 kV.
B3.1.6. Deficiencies detected in critical components by any of the following
inspections and tests shall be corrected and the equipment appropriately retested
before it is returned to service. All other deficiencies shall be scheduled for
correction as soon as practicable.
B3.2. Electrical Testing Program. The daily test of measuring the dielectric current
serves as a go no-go indication of the actual condition and safety of the boom under
the conditions at which the test was made, but it does not evaluate the boom for
abnormal conditions such as switching surges of up to 3 per unit voltage. At about
12-month intervals each vehicle mounted insulated aerial lift unit
B-3 (FIST 3 - 29 5/90)