Lincoln Electric IM850-A Periodic Maintenance, Calibration Specification, Sense Lead Fuse

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MAINTENANCE

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SAFETY PRECAUTIONS

SENSE LEAD FUSE

 

WARNING

ELECTRIC SHOCK can kill.

• Only Qualified personnel should perform this maintenance.

Turn the input power OFF at the disconnect switch or fuse box before working on this equipment.

Do not touch electrically hot parts.

There should never be any current flowing through the sense leads! There is a fuse located in the sense lead circuit that is mounted in the wire drive Connection Box which protects the sense lead circuit from weld current due to incorrect configuration. If this fuse ever opens, check the sense lead configuration to ensure proper connections. The fuse must be replaced with a comparable fuse with a rating of less than 1 amp before welding. The fuse being open or missing would have the same effect on the welding as having a disconnected sense lead.

ROUTINE MAINTENANCE

Check weld cables, control cables and gas hoses for cuts.

Clean and tighten all weld terminals.

Inspect and clean drive rolls and inner wire guide and replace if worn.

PERIODIC MAINTENANCE

Every six months check the motor brushes. Replace them if they are less than 1/4" long.

Every year inspect the gearbox and coat the gear teeth with a moly-disulfide filled grease. DO NOT use graphite grease.

CALIBRATION SPECIFICATION

All calibration is factory set on the Power Feed 10S.

To verify the wire feed speed:

Press the INCH DOWN switch and adjust the wire feed speed to 100 in/min (2.54m/min).

Measure the actual wire feed speed with a calibrated wire feed speed tachometer.

The measured wire feed speed should be within ±2% of the set value.

POWER FEED 10S

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Power Feed 10S Safety California Proposition 65 WarningsElectric Shock can kill Cylinder may explode if damaged Précautions DE Sûreté Sûreté Pour Soudage a L’ArcThank You Table of Contents 1PRODUCT DESCRIPTION1 Design Features General InformationSpecifications Technical Specifications Power Feed 10SInput and Ground Connections InstallationNON-STANDARD Safety Information Location and MountingPower Wave AC/DC 1000AMP Subarc System Connections Mounting DimensionsChanging Wire Drive Configuration ATE Remote Sense Lead Specifications Electrode and Work ConnectionsWelding with Multiple Arcs Figure A.4Installation Accessories Calibration Specification MaintenancePeriodic Maintenance Sense Lead FuseTroubleshooting HOW to USE Troubleshooting GuideOutput Problems Wiring Diagram for Power Feed 10S DiagramsDimension PrintPower Feed 10S Precaucion Warnung