Case 570T - Electrical systems - Troubleshooting

8-TROUBLESHOOTING
Electricalsystems-Troubleshooting
Problem
PossibleCauseCorrection
Theelectricalsystemis
inoperative
Looseoroxidisedbatteryconnections
Checkthatthebatteryvoltagewithopen
circuitisatleast12.6V
Cleanandtightentheconnections
Sulphatedbatteries
Checktheelectrolytelevelanddensity
Themainconnectionfuseofthemachine
isblown
Findthereasonofthefailureandreplace
theconnectionfuse
Startermotorspeedtoo
low,theenginecranks
slowly
Looseorcorrodedconnections
Cleanandtightenlooseconnections
Lowbatteryoutputvoltage
Checkthatthebatteryvoltagewithopen
circuitisatleast12.6V.Checktheelec-
trolytelevelanddensity
IncorrectviscosityoftheengineoilUseanoilwithcorrectviscosityforthetem-
peratureconditions
StartermotorinoperativeTransmissiongearshiftleverengagedMovegearshiftlevertoneutral
Looseorcorrodedconnections
Cleanandtightenlooseconnections
Deadbatteries
Chargeorreplacethebatteries
Thechargeindicatorlamp
staysonwiththeengine
running
LowengineidlespeedIncreaseidlespeed
Loosebelt
Checkbelttension
MalfunctioningbatteryCheckthatthebatteryvoltagewithopen
circuitisatleast12.6V.Checktheelec-
trolytelevelanddensity
MalfunctioningalternatorCheckthealternatorandrepair,ifneces-
sary
BatterieswillnotchargeLooseorcorrodedbatteryconnections
Cleanandtightentheconnections
SulphatedbatteriesCheckthatthebatteryvoltagewithopen
circuitisatleast12.6V.Checktheelec-
trolytelevelanddensity
Looseorwornbelt
Checktheautomaticbelttensioner.Ifnec-
essary,replacethebelt
Thechargeindicator
ashes,indicating
excessivecharging
voltage
MalfunctioningalternatorCheckthealternatorandrepair,ifneces-
sary
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