Miller SuitCase 8VS Посібник користувача - Сторінка 22

Переглянути онлайн або завантажити pdf Посібник користувача для Зварювальна система Miller SuitCase 8VS. Miller SuitCase 8VS 32 сторінки.

5-3. Troubleshooting

Trouble

Wire does not feed; open-circuit voltage

available.

Wire feeds erratically.

Wire feeds as soon as power is applied. Check gun trigger. See gun Owner's Manual.

Wire feeds when Jog switch is pressed

but not when gun trigger is pressed.

Wire stubbing on low end using a con-

stant current power source.

Gas does not flow or does not stop flow-

ing; wire feeds.

Wire remains energized after trigger is

released.

OM-1599 Page 18

Check circuit breaker CB1. Reset CB1.

Unit overheated. Allow unit to cool.

Check sensing lead connection.

Check gun trigger plug connection.

Check gun trigger. See gun Owner's Manual.

Readjust hub tension.

Readjust drive roll pressure.

Clean or replace dirty or worn drive roll (see Section 3-3).

Remove weld spatter around nozzle opening.

Replace contact tip or liner. See gun Owner's Manual.

Check gun trigger connection at wire feeder. Check gun trigger leads and trigger switch. See gun Owner's

Manual.

Make sure CC/CV switch is in CC position (see Section 4-1).

Increase output setting of power source.

Check gas valve.

Have Factory Authorized Service Agent check control board PC1.

Check contactor W1 to see if contacts are frozen closed.

Remedy