Miller Electric wire feeder Maintenance, Shutting Down, Inspection and Upkeep, Internal Cleaning

Page 15

3.Connect Load Bank cord to the ac power source. Be sure to use appropriate cord when Load Bank has both 120 and 240 volt cords installed.

4.Place 120 VOLT LOAD/240 VOLT LOAD selector switch in proper position (see Section 5-1).

5.Turn on or start the ac power source.

6.Check pilot lights for proper input voltage load selection (see Section 5-2).

7.Rotate AMPERAGE load switches to select desired ampere load value (see Section 5-3).

8.Compare meter readings with ac power source Owner’s Manual to check for compliance with specifications.

6-2. SHUTTING DOWN

1.Rotate AMPERAGE load switches to the OFF position.

2.Shut down the power source.

3.Disconnect Load Bank cord from power source, and place cord in the Load Bank cord storage.

SECTION 7 – MAINTENANCE

IMPORTANT: Every six months inspect the labels on the unit for legibility. All precautionary labels must be maintained in a clearly readable state and replaced when necessary. See Parts List for part number of precautionary labels.

7-1. INSPECTION AND UPKEEP

Usage and shop conditions will determine the frequency and type of maintenance. Inspect equipment every six months as follows:

WARNING: ELECTRIC SHOCK can kill.

Do not touch live electrical parts.

Shut down and disconnect Load Bank from auxiliary power source before inspecting, maintaining, or servicing.

MOVING PARTS can cause serious injury.

Keep clear of moving parts.

HOT SURFACES can cause severe burns.

Allow cooling period before servicing.

Maintenance to be performed only by qualified persons.

1.Remove grease and grime from components; remove moisture from electrical parts and cords.

2.Check cord terminal connections. Be sure that connections are clean and tight.

7-2. INTERNAL CLEANING

WARNING: ELECTRIC SHOCK can kill.

Do not touch live electrical parts.

Shut down and disconnect Load Bank from auxiliary power source before inspecting, maintaining, or servicing.

HOT SURFACES can cause severe burns.

Allow cooling period before servicing.

Blow out or vacuum the dust and dirt from around the internal components. Do this annually depending on the location of the unit and the amount of dust and dirt in the atmosphere. If dirty or dusty conditions are present, clean unit monthly. The outer enclosure should be removed and a clean, dry airstream or vacuum suction should be used for this cleaning operation.

SN-106 867-A

Figure 7-1. Circuit Diagram

OM-877 Page 11

Image 15
Contents OWNER’S Manual From Miller to You Table of Contents Page Burn Prevention Safety Rules for Operation of ARC Welding Power SourceGeneral Precautions IntroductionCompressed Gas Equipment Fire and Explosion PreventionUser Responsibilities Leaving Equipment UnattendedRope Staging-Support ARC Welding Burn ProtectionShock Prevention Standards Booklet Index Safety Alert Symbol and Signal Words Safety Precautions and Signal WordsGeneral Information and Safety SafetySpecifications InstallationDescription Cord Connections Cord Size By Ampacity RatingAmperage Amperage Load Switches FigureOperator Controls Pilot Lights FigureSequence of Operation Loading ProcedureInspection and Upkeep MaintenanceInternal Cleaning Shutting DownMain Assembly Parts ListPart Description Quantity Panel, Front w/Components Item Resistor Assembly Item OM-877 OM-877 OM-877 Call Miller for your local Miller distributor Miller Electric Mfg. Co Owner’s Record