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

DOE-STD-I090-96 (Rev-I)7.3 TESTING7.3.1Operational Testsa. Prior to initial use, all new, reinstalled,extensively repaired, or modified cranes shall betested by a designated person to ensurecompliance with this chapter, including thefollowing functions:1. Lifting and lowering.2. Trolley travel.3. Bridge travel.4. Locking, limiting, and indicatingdevices, ifprovided.5. Limit switches/devices.b. The trip setting ofhoist-limit devices shallbe determined by tests with an empty hooktraveling at increasing speeds up to the maximumspeed. The actuating mechanism oftheupper-limit device shall be located so that it willtrip the device under all conditions and insufficient time to prevent contact ofthe hook orload block with any part ofthe trolley or crane.7.3.2Rated Load Testa. Prior to initial use, all new, reinstalled,extensively repaired, or modified cranes shall betested by or under the direction of a qualifiedinspector. A designated or authorized person shalldetermine ifrepairs made to a crane are extensive,requiring a rated load test, or routine maintenancerequiring only operational testing. The 'replacement ofrope is excluded from this requirement.However, a functional test ofthe craneunder a normal operating load should be madeprior to putting the crane back in service. Awritten report shall be furnished by the inspectorconirrming the load rating ofthe crane. The loadrating should not be more than 80 percent ofthemaximum load sustained during the test Testloads shall not be more than 125 percent oftherated capacity, unless otherwise recommended bythe manufacturer. Test weights shall be accurateto within -5 percent, +0 percent ofstipulatedvalues.b. The rated load test for new cranes shallconsist ofthe following operations as minimumrequirements:1. Hoist the test load a sufficient distanceto ensure that the load is supported by the craneand held by the hoist brakes. Personnel shall bekept clear ofthe test load while it is suspended.2. Transport the test load by means ofthetrolley for the full length ofthe bridge.3. Transport the test load by means ofthebridge for the full length ofthe runway, in onedirection with the trolley as close to the extremeright-hand end ofthe crane as practical, and in theother direction with the trolley as close to theextreme left-hand end ofthe crane as practical.4. Lower the test load, stopping by thebrakes.c. Extensively repaired or modified cranesshall be tested in accordance withparagraph 7.3.2.b above insofar as interferingequipment/structures permit and in accordancewith recommendations from the manufacturer or aresponsible engineering organization. However,test loads should not be carried over criticalsystems or components.7-11Chapter 7Overhead and Gantry Cranes