Miller XR - Pistol - Pro 소유자 매뉴얼 - 페이지 25

{카테고리_이름} Miller XR - Pistol - Pro에 대한 소유자 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Miller XR - Pistol - Pro 40 페이지. Air and water-cooled gun

7-6. Troubleshooting

Trouble

Pressing gun trigger does not energize

feeder. Welding wire is not energized.

Shielding gas does not flow.

Wire feeds, shielding gas flows, but

welding wire is not energized.

Wire feeds erratically.

No weld output; gun/feeder does not

work.

Erratic weld output.

Wire does not feed; burnback in contact

tip.

Gun

overheating

(water-cooled

models).

Secure plug from gun control cable into Gun Control receptacle on feeder

(see Section 5-2 or 5-3 as applicable).

Have nearest Factory Authorized Service Agent check optional water flow switch, if applicable.

See Troubleshooting section in welding power source manual.

Adjust drive roll pressure if necessary (see Section 5-6).

Clean or replace drive rolls as necessary (see Section 7-3).

Check and replace liner if necessary (see Section 7-4).

Check gun trigger plug connection on wire feeder front panel (see Sections 5-2 and 5-3).

Place Power switch on welding power source in the On position.

Tighten and clean all connections.

Check drive roll pressure in wire feeder and gun (see Section 5-6).

Check and replace liner if necessary (see Section 7-4).

Check drive roll pressure in wire feeder and gun (see Section 5-6).

Check and replace liner if necessary (see Section 7-4).

Reinstall voltage sensing lead (see Section 5-1).

Be sure coolant flow rate is at least 1 qt/min.

Corrosion buildup in gun decreasing coolant flow rate. Backflush coolant system, clean coolant system

filter, and clean fittings.

Disconnect power before troubleshooting.

Remedy

OM-254 824 Page 21