Miller Electric 375 X-TREME, ICE-27T manual Checking Torch Shield Cup Shutdown System

.A complete Parts List is available at www.MillerWelds.com

6-6. Overload Protection: Trouble Lights & Checking Shield Cup Shutdown System

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Checking Torch Shield Cup Shutdown System

Power must be reset whenever the cup shutdown system is activated.

Always turn Off power when changing or checking consumables. Do NOT overtighten torch shield cup. Gently finger tighten cup onto torch.

Shield

Cup

1 Power Light

Light is steady if input power is okay. Light flashes for the following conditions:

aIf input power is 120 volts ac, but power supply is less than 92 volts ac.

bIf input power is 240 volts ac, but power supply is greater than 276 volts ac.

If certain problems occur a trouble light comes on, and output stops.

2 Pressure Light

Lights if gas/air pressure into the system is below 90 PSI (620 kPa).

Turn power Off, and check for proper gas/air pressure.

A flashing Pressure light indicates that gas/air system may be set too low, faulty, leaking or has a flow re- striction.

3 Cup Light

Lights if shield cup is loose/off.

Turn Power On and loosen shield cup. If shutdown system works properly, Cup light comes on. If not, turn power Off and have a factory authorized service agent check unit.

If system works properly, retighten cup and reset power.

Turn power Off, and check shield cup connection (see torch Owner’s Manual). Power must be reset whenever the cup shutdown is activated.

A flashing Cup light indicates that the torch consumables are stuck or worn and should be inspected and/ or replaced (see Section 6-7).

Check shield cup shutdown system once a week.

4 Temperature Light

Lights if power source overheats or when ambient temperature is below −35° C (−31° F) (see Section 4-3).

Ref. 225 175-B / Ref. 802 877

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