Vacuum Cleaner Operation and Maintenance

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Questions and Answers

What resistance reading indicates proper grounding for the vacuum cleaner?

  • 10 ohms or less (correct)
  • 1 ohm or less
  • 100 ohms or less
  • 50 ohms or less

Which type of liner should be used in the detachable recovery tank?

  • Tiger-Vac brand conductive poly liner (correct)
  • Non-conductive liner
  • Any conductive liner
  • Generic brand conductive liner

What is the consequence of using a dirty cloth filter in the vacuum cleaner?

  • Reduced performance (correct)
  • Improved airflow
  • No noticeable effect
  • Increased suction power

For other conductive suction hoses, what is the acceptable resistance reading for proper grounding?

<p>105 ohms or less (C)</p> Signup and view all the answers

What should you do if the cloth filter is still wet after washing?

<p>Do not reinstall the cloth filter (C)</p> Signup and view all the answers

What happens if a vacuum cleaner does not ensure proper dissipation of static electricity?

<p>Needs maintenance (D)</p> Signup and view all the answers

What is a recommended practice for maintaining the cloth filter?

<p>Use the manual filter shaker regularly (C)</p> Signup and view all the answers

Why should recovered materials not be allowed to sit for extended periods in the tank?

<p>It could create a fire hazard (C)</p> Signup and view all the answers

What is the purpose of grounding the vacuum cleaner?

<p>To provide a path of least resistance for electric current (D)</p> Signup and view all the answers

Why is it important to test the electrical continuity of the vacuum cleaner before each use?

<p>To discharge any static electricity produced while vacuuming (B)</p> Signup and view all the answers

What should you do if you suspect the outlet is not properly grounded?

<p>Check with a qualified electrician (D)</p> Signup and view all the answers

What type of wheels should be used on the vacuum cleaner for safe operation?

<p>Conductive wheels supplied by Tiger-Vac (D)</p> Signup and view all the answers

What is specifically warned against when using the vacuum cleaner?

<p>Operating it without a properly grounded outlet (C)</p> Signup and view all the answers

What tool is required to perform an electrical continuity test on the vacuum cleaner?

<p>Ohm-meter (B)</p> Signup and view all the answers

What is NOT a recommended practice for ensuring safety when using the vacuum cleaner?

<p>Use replacement parts from any supplier (C)</p> Signup and view all the answers

What are conductive wheels designed to do on the vacuum cleaner?

<p>Ensure spark-free operation and static electricity dissipation (A)</p> Signup and view all the answers

What should be avoided to prevent mechanically generated sparks while using the vacuum cleaner system?

<p>Impacting the wand and tools with rusted parts (D)</p> Signup and view all the answers

What is the recommended operation method for the vacuum cleaner to ensure safety?

<p>Allowing the unit to run for extended periods (B)</p> Signup and view all the answers

What should you do to ensure the vacuum cleaner system is safe to operate?

<p>Ensuring the outlet is properly installed and grounded (B)</p> Signup and view all the answers

What precaution should be taken to prevent static charge accumulation on the vacuum cleaner?

<p>Following manual recommendations during use (C)</p> Signup and view all the answers

Which materials should be used for replacement parts to maintain the vacuum cleaner's safety?

<p>Original replacement parts from TIGER-VAC or authorized distributors (C)</p> Signup and view all the answers

What is a significant source of electrostatic charge generation to avoid while using the vacuum cleaner?

<p>Continuous manual rubbing of insulating items (D)</p> Signup and view all the answers

What is a warning associated with proper grounding of the vacuum cleaner?

<p>The vacuum cleaner must not operate without proper grounding (A)</p> Signup and view all the answers

What is a critical reason to avoid using the vacuum cleaner system on flammable liquids?

<p>It can generate sparks that ignite flammable liquids (D)</p> Signup and view all the answers

Flashcards

Flammable liquids & vacuum cleaners

Vacuum cleaners are not for recovering flammable liquids.

Mechanical sparks

Sparks created by the tools and wand of a vacuum cleaner.

Electrostatic charges & vacuum cleaners

Vacuum cleaners can sometimes build up static electricity.

Continuous duty vacuum

Designed for extended runs, not frequent on/off cycles.

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Proper grounding of a vacuum cleaner

Essential for safe operation; the vacuum cleaner needs to be connected to the ground.

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Proper use of vacuum tools

Use only original replacement parts specified by the manufacturer to ensure safety standards are adhered to, and appropriate grounding.

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Outlet needs to be grounded

The outlet for the vacuum cleaner should be grounded according to local safety codes.

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Vacuum motor cooling

Vacuum motors are designed for a continuous run, allowing the motor to reach full speed before being shut off and coming to a complete stop before being turned on again.

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Grounding a vacuum cleaner

Connecting the vacuum cleaner to the ground, ensuring a safe path for electricity to flow if a malfunction occurs, preventing electric shock.

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Importance of Grounding for Vacuum Cleaners

Grounding prevents electric shock by providing a low-resistance path for current to flow, ensuring that any electrical fault does not pass through the user.

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Checking Ground Continuity

Testing the vacuum cleaner's electrical continuity before each use to ensure proper grounding and safe operation.

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Conductive Wheels

Special wheels on vacuum cleaners designed to conduct electricity to the ground, ensuring safe operation in explosive environments.

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Dissipating Static Electricity

Grounding effectively disperses static electricity built up during vacuuming, avoiding sparks and potential hazards.

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Proper Electrical Outlet

Using an appropriate electrical outlet, properly grounded in accordance with local codes, is crucial for safe vacuum cleaner operation.

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Original Replacement Parts

Using only original replacement parts from the manufacturer or an authorized distributor ensures safe and reliable operation.

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Testing Electrical Continuity

Using an ohm-meter to verify the electrical continuity of the vacuum cleaner before each use, ensuring proper grounding and safe operation.

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Grounding Test

Checking the electrical continuity from the ground pin on the plug to the vacuum's intake. A reading of 10 ohms or less indicates proper grounding and static dissipation.

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Suction Hose Test

Measuring the electrical continuity from one metallic end of the suction hose to the other. A reading of 10 ohms (for Kanaflex, EPDM, or nitrile hoses) or 105 ohms (for other conductive hoses) ensures proper grounding.

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High Resistance Reading

A reading higher than the specified limit (10 or 105 ohms) indicates potential grounding issues, which might cause static buildup.

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Cone and Filter Assembly

Essential components that need to be correctly installed for safe and effective dry recovery. Do not use the vacuum without them.

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Conductive Poly Liner

An optional but recommended component to prevent static buildup inside the recovery tank. Always use genuine Tiger-Vac brand liners.

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Cloth Filter Maintenance

Regular cleaning is crucial to maintain airflow and vacuum performance. Wash with warm water and mild detergent, ensuring it's completely dry before reinstalling.

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Detachable Recovery Tank

Empty it regularly to avoid buildup of recovered materials. This is a safety and hygiene precaution.

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Dry Recovery Safety

Do not use the vacuum for recovering dry materials if the cone and main filter assembly are not installed correctly. It can be dangerous.

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Study Notes

Tiger-Vac CD 55L DT EX MFS Vacuum Cleaner

  • Continuous Duty Explosion Proof / Dust Ignition Proof
  • Industrial Vacuum Cleaner for Dry Recovery Only
  • For use in Potentially Explosive Atmospheres
  • Model CD 55L DT EX MFS
  • Ex d IIB T4 Gb
  • Ex t IIIC T135°C Db IP65
  • IECEx LCI 10.0040

Operation and Maintenance Manual

  • Includes table of contents
  • Inspection procedures
  • Applications for use
  • Safety precautions for dust, temperature, flammable liquids, and electrostatic charges
  • Pre-usage instructions
  • Grounding instructions
  • Testing for ground continuity
  • Operating instructions
  • Cleaning and maintenance
  • HEPA filter replacement
  • Motor maintenance
  • Vacuum relief valve
  • Factory amp setting
  • Troubleshooting guide

Important Safety Precautions

  • Clean vacuum surfaces regularly with damp cloth
  • Do not use in presence of dust clouds or layers with an ignition temperature below 200°C or 210°C respectively
  • Do not use for flammable liquids
  • Avoidance of mechanically generated sparks, especially when using metal components
  • Usage with electrostatic caution and avoid intense friction on insulated components

Applications in Potentially Explosive Atmospheres

  • ATEX Zone 1: likely to occur in normal operation, occasionally
  • ATEX Zone 2: not likely to occur in normal operation, but may persist for a short period
  • Recovery of combustible dusts: flyings, carbonaceous dusts (carbon black, charcoal, coal or coke dusts), flour, grain, wood, plastic, and chemicals
  • Prohibited use for hot embers or ignited dusts
  • Proper risk assessment of combustible dusts and metal dusts is crucial for use

Additional Details

  • Tiger-Vac International Inc. contact information provided
  • Warranty information included
  • Proper use, care, and maintenance of the vacuum cleaner is emphasized, especially in hazardous environments
  • Compliance with safety standards, including IECEx certification, is highlighted
  • Specific warnings are given for each use case. For instance, the use of this equipment requires a specific grounding
  • Safety measures are described in detail

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