Thermo King T-1000R Series Maintenance Manual page 159

Mechanical Diagnosis
Condition
Battery is not recharging
158
Possible Cause
Loose alternator belt
Loose connections in electrical
system
Worn brushes in alternator
Voltage regulator faulty
Battery defective
Alternator defective
Dirty battery terminals
Remedy
Tighten belt
Check all electrical connections and
charging system
Repair
Replace
Replace
Repair or replace
Clean and retighten