T a b l e 4 - 7 . L o a d B a n k P r e v e n t i v e M a i n t e n a n c e C h e c k s a n d S e r v i c e sITEMNO.12345678910111213141516INTERV,DPERATOIDAILYBxx—D——A.;(iB - Before OperationA - After OperationM - Monthly (100 hrs)D - During OperationW - Weeklv (40 hrs)s-:mi Annual (500hrs)lTEM TO BEINSPECTEDPROCEDUREKit attaching hard.ware and cables,Wiring harness.Control panelassembly.Rotary switch.Load reject toggleswitch.Fanguard.Air outlet and fan.Fanmotorbrushes.Overtemperaturereset switchcircuit breaker,Fan mountinggrommets.Indicating light andlamp.Load reject re!ay.Terminal board.Thermostat.Heater elements.Fan motorassemblyTighten hardware and inspect cablesfor wear andsecurity.Inspect for frayed insulation andsecurity of termj.nal lugsand damagetthreads, bent, loose,or missing pinsof connectors.Inspect for loose mounting hardwareand tight en as necessary.Inspect switches for positive actionbetween positions, wiring connectionsand damage. Test forproperoperation.Inspect switch for positive actionbetween positions, wiring connectionsand damage. Test forproperoperation.Inspect for foreign material.Inspect for foreign material anddamage to fan.hspect for wear andrefer to next highemaintenance level for replacementInspect circuit breaker for positiveaction between positions, wiringconnections, and darnage. Test forproperoperation.Inspect for deteriorationandlooseness.Inspect lens and lamp for looseness anddamage. Inspect wiring connectionsfor looseness.Test for properoperation.Inspect for security of mountingdamage, and loose wiring connections,hspect for loose mounting hardwareandtighten as necessary.kspect for loose mounting andwiringconnections. Test for properoperation.hspect for loose attaching hardware,damage, and wiring connections. Testforproper operation.:nspect for security of mounting andphysical damageREFERENCE( p a r a 4 - 4 2 )( p a r a 4 - 4 3 )( p a r a 4 - 4 4 )( p a r a 4 - 4 4 )( p a r a 4 - 4 4 )( p a r a 4 - 4 4 )( p a r a 4 - 4 4 )( p a r a 4 - 4 4 )( p a r a 4 - 4 4 )p a r a 4 - 4 4 )( p a r a 4 - 4 4 )( p a r a 4 - 4 5 )( p a r a 4 - 4 6 )( p a r a 4 - 4 7 )( p a r a 4 - 4 8 )( p a r a 4 - 4 4 )4 - 3 5
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