13.07.2015 Views

DOE-STD-1090-96, DOE Standard Hoisting and Rigging Manual ...

DOE-STD-1090-96, DOE Standard Hoisting and Rigging Manual ...

DOE-STD-1090-96, DOE Standard Hoisting and Rigging Manual ...

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

<strong>DOE</strong>-<strong>STD</strong>-<strong>1090</strong>-<strong>96</strong> (Rev-l)scrubbing on the outer surface ofa hose, rigidtube, or fitting (means shall be taken to eliminatethe interface ofelements in contact or otherwiseprotect the components).15.4.2.5.2 Hydraulic <strong>and</strong>PneumaticPumps. Inspect for:a. Loose bolts or fasteners.b. Leaks atjoints between sections.c. Shaft sea11eaks.dUnusual noises or vibration.e. Loss ofoperating speed.f. Excessive heating ofthe fluid.g..Loss ofpressure.15.4.2.5.3 Hydraulic <strong>and</strong> PneumaticValves. Inspect for:a. Cracks in valve housing.b. Improper return ofspool to neutral position.c. Leaks at spools orjoints.d. Sticking spools.e. Failure ofreliefvalves to attain correctpressure setting (relief valve pressures shall bechecked as specified by the manufacturer).15.4.2.5.4 Hydraulic <strong>and</strong> PneumaticCylinders. Inspect for:a. Drifting caused by fluid leaking across theposition.b. Rod seal leakage.c. Leaks at welded joints.d. Scored, nicked, or dented cylinder rods.e. Dented case (barrel).f. Loose or deformed rod eyes or connectingjoints.15.4.2.5.5 Hydraulic Filters.Inspect hydraulic filters for evidence ofrubberparticles on the filter element that may indicatehose, "0" ring, or other rubber-componentdeterioration. Metal chips or pieces on the filtermay denote failure in pumps, motors, or cylinders.Further checking will be necessary to determinethe origin ofthe problem before corrective actioncanbe taken.15.4.2.5.6 Wire Ropes.a. A qualified inspector shall inspect all wireropes at least annually. More frequent intervalsshall be as determined by a qualified person <strong>and</strong>shall be based on such factors as expected ropelife as determined by severity ofenvironment,percentage ofcapacity lifts, frequency rates ofoperation, <strong>and</strong> exposure to shock loads. Thequalified inspector shall carefully note anydeterioration, such as described below, that resultsin appreciable loss oforiginal strength <strong>and</strong>determine whether further use ofthe ropeconstitutes an acceptable risk. This inspectionshall include examination of the entire rope lengthwithout detaching it from the drum.1. Reduction ofrope size belownominal diameter, whether due to loss ofcoresupport, internal or external corrosion, or wear ofoutside wires (see Table 15-1).2. A number ofbroken outside wires<strong>and</strong> the distribution or concentration of suchbroken wires.3.Worn outside wires.Table 15-1. Maximum allowablerope reductions.Maximum allowablereductionRope diameter from nominal diameterUp to 5/16 in. 1/64 in. (D.4 mm)(8 mm)Over 5/16 in. to1/2 in. (13 mm)Over 1/2 in. to3/4 in. (19 mm)Over 3/4 in. to1 1/8 in. (29 mm)Over 1 1/8 in. to1 1/2 in. (38 mm)1/32 in. (D.8 mm)3/64 in. (1.2 mm)1/16 in. (1.6 mm)3/32 in. (2.4 mm)15-11Chapter 15Construction <strong>Hoisting</strong> <strong>and</strong> <strong>Rigging</strong>Equipment Requirements

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!