Case 721E - Electrical System Safety for Charging and Welding; Specialized Tools for Service Operations

INTRODUCTION
Protectingtheelectronicand/orelectricalsystemsduringchargingandwelding
Toavoiddamagetotheelectronicand/orelectricalsystems,alwaysobservethefollowingpractices:
1.Nevermakeorbreakanyofthechargingcircuitconnectionswhentheengineisrunning,includingthebattery
connections.
2.Nevershortanyofthechargingcomponentstoground.
3.Alwaysdisconnectthegroundcablefromthebatterybeforearcweldingonthemachineoronanymachine
attachment.
•
Positiontheweldergroundclampasclosetotheweldingareaaspossible.
•
Ifyouweldincloseproximitytoacomputermodule,thenyoushouldremovethemodulefromthemachine.
•
Neverallowweldingcablestolieon,near,oracrossanyelectricalwiringorelectroniccomponentwhileyou
weld.
4.Alwaysdisconnectthenegativecablefromthebatterywhenchargingthebatteryinthemachinewithabattery
charger.
NOTICE:Ifyoumustweldontheunit,youmustdisconnectthebatterygroundcablefromthemachinebattery.
Theelectronicmonitoringsystemandchargingsystemwillbedamagedifthisisnotdone.
5.Removethebatterygroundcable.Reconnectthecablewhenyoucompletewelding.
WARNING
Batteryacidcausesburns.Batteriescontainsulfuricacid.
Avoidcontactwithskin,eyesorclothing.Antidote(external):Flushwithwater.Antidote(eyes):ush
withwaterfor15minutesandseekmedicalattentionimmediately.Antidote(internal):Drinklarge
quantitiesofwaterormilk.Donotinducevomiting.Seekmedicalattentionimmediately.
Failuretocomplycouldresultindeathorseriousinjury.
W0111A
Specialtools
ThespecialtoolsthatCASECONSTRUCTIONsuggestsandillustrateinthismanualhavebeenspecicallyre-
searchedanddesignedforusewithCASECONSTRUCTIONmachines.Thespecialtoolsareessentialforreliable
repairoperations.Thespecialtoolsareaccuratelybuiltandrigorouslytestedtoofferefcientandlong-lastingoper-
ation.
Byusingthesetools,repairpersonnelwillbenetfrom:
•
Operatinginoptimaltechnicalconditions
•
Obtainingthebestresults
•
Savingtimeandeffort
•
Workinginsafeconditions
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