6-2. 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.

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If certain problems occur, the Ready light goes off, a trouble light comes on, and output stops.

1 Pressure Light

Lights if gas/air pressure is below 40 PSI (276 kPa).

Turn power Off, and check for proper gas/air pressure (see Section 5-1).

A flashing Pressure light indicates that gas/air system may be set too low, faulty, leaking or has a flow re- striction (see Section 6-5).

2 Cup Light

Lights if shield cup is loose.

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 6-4).

Check shield cup shutdown system once a week.

3 Temperature Light

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

4 Torch Shield Cup

Turn Power On and loosen shield cup. If shutdown system works properly, Ready light goes off and Cup light comes on. If not, turn power Off and check for proper gas/air pressure (see Section 4-1), blocked or leaking hose, or loose shield cup (see torch Owner’s Manual).

If system works properly, retighten cup and reset power.

Ref. 200 808 / Ref. 802 877

OM-228 305 Page 20

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Miller Electric pmn warranty Checking Torch Shield Cup Shutdown System, Cup Light Lights if shield cup is loose

pmn specifications

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