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TROUBLESHOOTING & REPAIR
F-48 F-48
CLASSIC I
RETEST AFTER REPAIR
Retest a machine:
• If it is rejected under test for any reason that requires you to remove any mechanical part which could affect the
machine’s electrical characteristics.
OR
• If you repair or replace any electrical components.
ENGINE OUTPUT
Mode No Load RPM Load RPM
Low Idle 1000-1050 NA
High Idle 1550-1650 1440-1500
WELDER DC OUTPUT
Current Control Current Selector Open Circuit Load Volts Load Amps
Rheostat Switch Voltage
Maximum Maximum 88-95 33-39 300
DC AUXILIARY POWER RECEPTACLE OUTPUT
Open Circuit Voltage Load Volts Load Amps
123-132 115-125 15.0
FIELD AMPS AND VOLTS
(Current Rheostat at Maximum)
Exciter DC Volts Main Shunt Field Amps RPM
123 - 132 2.35-2.65 1440-1560
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