Miller Electric CBI 801D manual Fire and Explosion Prevention, Compressed Gas Equipment

Page 7

atmosphere or where the radiant energy can penetrate to atmospheres containing even minute amounts of trichloroethylene or perchloroethylene.

C. Fire and Explosion Prevention

Causes of fire and explosion are: combustibles reached by the arc, flame, flying sparks, hot slag or heated mate- rial; misuse of compressed gases and cylinders; and short circuits.

BE AWARE THAT flying sparks or falling slag can pass through cracks, along pipes, through windows or doors, and through wall or floor openings, out of sight of the goggled operator. Sparks and slag can fly 35 feet.

To prevent fires and explosion:

Keep equipment clean and operable, free of oil, grease, and (in electrical parts) of metallic particles that can cause short circuits.

If combustibles are in area, do NOT weld or cut. Move the work if practicable, to an area free of combustibles. Avoid paint spray rooms, dip tanks, storage areas, ven- tilators. If the work cannot be moved, move comb- ustibles at least 35 feet away out of reach of sparks and heat; or protect against ignition with suitable and snug- fitting, fire-resistant covers or shields.

Walls touching combustibles on opposite sides should not be welded on (or cut). Walls, ceilings, and floor near work should be protected by heat-resistant covers or shields.

Fire watcher must be standing by with suitable fire extin- guishing equipment during and for some time after weld- ing or cutting if:

a. appreciable combustibles (including building construction) are within 35 feet

b.appreciable combustibles are further than 35 feet but can be ignited by sparks

c.openings (concealed or visible) in floors or walls within 35 feet may expose combustibles to sparks

d.combustibles adjacent to walls, ceilings, roofs, or metal partitions can be ignited by radiant or conducted heat.

Hot work permit should be obtained before operation to ensure supervisor’s approval that adequate precau- tions have been taken.

After work is done, check that area is free of sparks, glowing embers, and flames.

An empty container that held combustibles, or that can produce flammable or toxic vapors when heated, must never be welded on or cut, unless container has first been cleaned as described in AWS Standard A6.0, listed 7 in Standards Index.

This includes: a thorough steam or caustic cleaning (or a solvent or water washing, depending on the combusti- ble’s solubility) followed by purging and inerting with ni- trogen or carbon dioxide, and using protective equip-

ment as recommended in A6.0. Waterfilling just below working level may substitute for inerting.

A container with unknown contents should be cleaned (see preceding paragraph). Do NOT depend on sense of smell or sight to determine if it is safe to weld or cut.

Hollow castings or containers must be vented before welding or cutting. They can explode.

Explosive atmospheres. Never weld or cut where the air may contain flammable dust, gas, or liquid vapors (such as gasoline).

D. Compressed Gas Equipment

Standard precautions. Comply with precautions in this manual, and those detailed in CGA Standard P-1, SAFE HANDLING OF COMPRESSED GASES IN CYLIN- DERS, listed 11 in Standards Index.

1.Pressure Regulators

Regulator relief valve is designed to protect only the regulator from overpressure; it is not intended to protect any downstream equipment. Provide such protection with one or more relief devices.

Never connect a regulator to a cylinder containing gas other than that for which the regulator was designed.

Remove faulty regulator from service immediately for repair (first close cylinder valve). The following symp- toms indicate a faulty regulator:

Leaks-if gas leaks externally.

Excessive Creep-if delivery pressure continues to rise with downstream valve closed.

Faulty Gauge-if gauge pointer does not move off stop pin when pressurized, nor returns to stop pin after pres- sure release.

Repair. Do NOT attempt to repair. Send faulty regula- tors for repair to manufacturer’s designated repair cen- ter, where special techniques and tools are used by trained personnel.

2.Cylinders

Cylinders must be handled carefully to prevent leaks and damage to their walls, valves, or safety devices:

Avoid electrical circuit contact with cylinders including third rails, electrical wires, or welding circuits. They can produce short circuit arcs that may lead to a serious ac- cident. (See 1-3C.)

ICC or DOT marking must be on each cylinder. It is an assurance of safety when the cylinder is properly han- dled.

Identifying gas content. Use only cylinders with name of gas marked on them; do not rely on color to identify gas content. Notify supplier if unmarked. NEVER DEFACE or alter name, number, or other markings on a cylinder. It is illegal and hazardous.

Empties: Keep valves closed, replace caps securely; mark MT; keep them separate from FULLS and return promptly.

Prohibited use. Never use a cylinder or its contents for other than its intended use, NEVER as a support or roller.

OM-166 941 Page 2

Page 6 Page 8
Image 7
Page 6 Page 8
Contents Per Nspr OM-166 941CProcesses DescriptionWarranty Page Table of Contents − Parts List − Maintenance− Troubleshooting − Electrical DiagramsBurn Prevention − Safety Rules for Operation of ARC Welding Power SourceGeneral Precautions IntroductionCompressed Gas Equipment Fire and Explosion PreventionLeaving Equipment Unattended User ResponsibilitiesRope Staging-Support Burn Protection ARC WeldingShock Prevention Standards Booklet Index Safety Alert Symbol and Signal Words − Safety Precautions and Signal WordsGeneral Information and Safety SafetyOCV − SpecificationsDuty Cycle − Installation or RelocationDescription Trailer Mounting Exhaust Extension InstallationConnecting the Battery Lifting Of EquipmentEquipment Grounding Terminal GroundPositive Negative Rated Weld OutputRemote Feeder AMPERAGE/VOLTAGE Output Contactor Remote Control ConnectionsRemote 9 Receptacle Information And Connections Figures 4-2 Remote Terminal Strip 3T Information Wire remote control cord directly to terminal stripTion C Within unit according to Section BYour health AIR Compressor ConnectionsEther Starting AID Optional Posure to Ether can seriously harmGeneral − Auxiliary Power Power OutputElectric Sparks can cause fire LOW Voltage and Frequency can dam- age electrical equipmentAmperage & Voltage Adjustment Amperage and Voltage Adjustment− Operator Controls Panel Remote RUNRemote Output Contactor Fuel BatteryMagnetic Shutdown Switch Broken Cooling Belt Shutdown SwitchShielded Metal ARC Welding Smaw − Sequence of OperationARC Rays can burn eyes and skin Noise can damage hearing Fumes and Gases can seriously harm your healthStarting the Engine Auxiliary Power OperationAIR Carbon ARC Cutting and Gouging CAC-A Table AIR Compressor Operation Tables 7-2Flow Of Free Air CFM Through Orifices Of Various Diameters Stopping the EngineMiscellaneous − Maintenance Deutz F4L912 Diesel Engine Air Cleaner Service AIR Cleaner Service TableSludge Drain Plug Battery Replacement ProcedureFUEL/WATER Separator and Sludge Drain Plug Fuel/Water SeparatorEngine Speed Adjustments Figure MAINTENANCE-FREE Battery CHARG- INGGovernor Brushes and Slip Rings Figure Brush Replacement Ether Starting AID OptionalRun-In Procedure Using Load Bank Diagram RUN-IN ProcedureMoving Parts can cause severe injury Run-In Procedure Using Resistance Grid Dia- gram Diagram 8-1. Load Bank ConnectionsDiagram 8-2. Resistance Grid Connections − TroubleshootingBooster Battery Jump Starting Circuit Breaker CB1 Figure Overload Protection FigureMoving Parts can cause serious personal injury Incorrect Fuse can damage unitWeld/Power Troubleshooting Troubleshooting Tables 9-1 ThruTrouble Probable Cause Remedy Air Compressor Troubleshooting Auxiliary Power TroubleshootingAuxiliary Power Probable Cause Remedy Trouble Engine TroubleshootingOM-166 941 Diagram 10-1. Circuit Diagram For Welding Generator − Electrical DiagramsSC-168 908-B 11-2 − Parts List66 Fig 1A. Main Assembly 073 FITTING, brs barbed M 3/16tbg x 1/4NPT 0456660009309 1B. Main Assembly 6563 62 21 22 15 14 8111532480009309 Panel, Front w/Components 18 17 16 Includes ItemPanel, Front w/Components -1A Item Panel, Lower Front w/Components Panel, Lower Front w/Components 1A Item Control Box -1A Item Generator -1B Item

CBI 801D specifications

The Miller Electric CBI 801D is a robust and sophisticated multi-process welder, designed for maximum efficiency and versatility in various welding applications. This machine stands out due to its combination of advanced technology and user-friendly design, making it suitable for both seasoned professionals and those new to welding.

One of the key features of the CBI 801D is its ability to perform multiple welding processes, including MIG, TIG, and stick welding. This multi-functionality allows users to tackle a wide range of welding tasks, whether they are working on thin sheet metals or heavy fabrication. The seamless transition between processes is designed to enhance productivity and reduce downtime.

The CBI 801D is powered by Miller's innovative Auto-Set technology, which automatically adjusts the machine settings based on the material type and thickness. This feature simplifies the setup process, allowing welders to focus more on their work rather than on configuring the machine. Additionally, the user interface is designed for simplicity, featuring intuitive controls that are easy to navigate.

In terms of performance, the CBI 801D delivers impressive output, with a maximum welding output of 800 amps. This substantial power provides the capability to weld thicker materials with greater efficiency, making it an ideal choice for industrial applications. The built-in advanced cooling system ensures optimal performance during extended use, preventing overheating and maintaining consistent weld quality.

Durability is another hallmark of the Miller Electric CBI 801D. The machine is constructed with high-quality materials, providing resilience against tough working conditions. Its compact and portable design allows for easy transport to various job sites, while the built-in handles are designed for convenience.

Moreover, the CBI 801D features advanced digital readouts for real-time monitoring of welding parameters. This not only enhances precision but also allows welders to make necessary adjustments on the fly. The machine is also compatible with various accessories, which further expand its functionality and adaptability across different welding scenarios.

In summary, the Miller Electric CBI 801D is a powerful and versatile welding machine, offering multi-process capabilities, user-friendly features, and a robust design. Its combination of advanced technology and reliable performance makes it a top choice for professionals looking for efficiency and precision in their welding tasks. Whether for fabrication, repair, or maintenance, the CBI 801D proves to be an invaluable asset in any welding operation.
Top Page Image Contents