Lincoln Electric NA-5N, NA-5S Retest After Repair, Gear Ratio Wire Speed Range in/min m/min

Models: NA-5S NA-5N NA-5SF NA-5NF

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F-85

TROUBLESHOOTING & REPAIR

F-85

 

 

RETEST AFTER REPAIR

If a failed test indicates that any mechanical part that could affect the machine's electrical characteristics must be replaced or if any electrical components are repaired or replaced, the machine must be retested and must meet the following standards.

Wire Feed Speed per following table:..........................

Gear Ratio

Wire Speed Range in/min (m/min)

 

 

 

 

 

21/1

100-2070

(2.54-52.58)

 

57/1

38-778 (.97-19.76)

 

95/1

22-456 (.56-11.58)

 

142/1

15-300

(.38-7.62)

 

 

 

 

 

LEDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Must operate per PC Board LED Definitions table in Troubleshooting Section.

Flux or Water Solenoid . . . . . . . . . . . . . . . . . . . .Must operate when "Start" switch is pressed. Relay 3CR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Must operate and "close" power source contactor.

Relay 2CR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Must operate and activate external travel circuit, if used. Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Refer to Voltmeter Accuracy Test.

Wire Speed Meter . . . . . . . . . . . . . . . . . . . . . . . .Refer to Wire Speed Accuracy Test.

Voltage control and shutdown . . . . . . . . . . . . . . .Refer to Out of Voltage Range Shut Down Test.

NA-5

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Lincoln Electric NA-5NF, NA-5SF service manual Retest After Repair, Gear Ratio Wire Speed Range in/min m/min