Worthington Bernzomatic BZ8250HT

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08/19/16

INSTRUCTION MANUAL

Trigger-Start Torches

Models: BZ8250HT

 DANGER

This torch is used with a ﬂammable product. Failure to comply with these warnings and

instructions may result in an explosion or ﬁre that may cause property damage, serious

personal injury or death.

Read and comply with the instructions and warnings in this manual and familiarize yourself

with the torch before lighting and using. Review instructions and warnings periodically to

maintain awareness. Do not try to operate before reading instructions.

Torches are to be used only with hand held gas cylinders speciﬁcally designated for

use with torches.

 WARNING

• Keep torch out of reach of children and anyone who has not read instructions. Do not point torch towards face, other

persons or ﬂammable objects. Never attempt to use torch as a cigarette lighter.

• Disconnect cylinder when not in use.

• Never attempt to modify the torch construction and never use unapproved accessories or fuels.

• Treat the torch as you would any ﬁne tool or instrument. Do not drop, throw, or otherwise abuse.

• Do not use a leaking, damaged or malfunctioning torch.

• Always wear safety glasses, protective gloves and use proper tools to handle hot work.

• Radiant energy can harm your eyes. Wear glasses having an appropriate lens shade number (see 29 CFR 1926.102)

for the torch operation being done; brazing and light cutting (3 or 4), medium cutting and light welding (4 or 5), heavy

cutting and medium/heavy welding (5-8).

• Work only in well-ventilated areas. Avoid the fumes from ﬂuxes, lead-based paint, and all metal heating operations. Be

careful to avoid fumes from cadmium plating and galvanized metal- remove these coatings in the area to be heated by

ﬁling or sanding prior to heating.

Materials used in the construction of this device may contain brass (which may contain lead), a chemical known to the

State of California to cause birth defects or other reproductive harm.

Combustion by-products produced when using this device contain chemicals known to the State of California to cause

cancer, birth defects, or other reproductive harm.

DANGER INCENDIE EXPLOSION FUMES

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Summary

Safety Precautions and Warnings

General Danger Advisory

Torch use with flammable product poses explosion/fire risks, causing property damage, injury, or death.

Material and Combustion Warnings

Materials may contain lead; combustion by-products may cause cancer or reproductive harm.

Safe Handling and Usage Guidelines

Keep torch away from children; do not point at others, use as lighter, or modify.

Eye Protection and Ventilation

Wear safety glasses with appropriate shade; work in well-ventilated areas.

Assembly and Leak Testing

Cylinder and Regulator Assembly

Ensure regulator is OFF, thread fuel gas cylinder into regulator hand-tight.

Joints and Couplings Check

Periodically check connections for leaks using soapy water; never use flame.

Operation and Holster Use

Holster Usage

Attach holster to belt, insert torch burn tip; ensure quick release in emergencies.

Lighting and Flame Adjustment

Open valve fully, point safely, pull ignition button; adjust flame as needed.

Flame Lock Feature

Engage by pressing lock button while ignition button is depressed; disengage by pulling ignition button.

Storage and Additional Safety

Additional Operational Warnings

Ensure torch is cool for changes; check connections; pre-warm cylinder in cold weather.

Cylinder Storage

Close valve, disconnect cylinder, store separately from torch in ventilated areas, away from heat.

The Bernzomatic BZ8250HT Trigger-Start Torch is a versatile tool designed for various heating applications, offering ease of use and safety features for both professional and DIY users. This instruction manual provides comprehensive guidelines for its operation, maintenance, and safety, emphasizing the importance of proper handling due to the use of flammable products.

Function Description:

The Bernzomatic BZ8250HT is a trigger-start torch primarily used for heating applications. Its trigger-start mechanism allows for quick and convenient ignition. The torch is designed to be used with hand-held gas cylinders specifically designated for torch use. It features a built-in regulator that controls pressure, reducing the risk of pulsating or yellow flames, especially when used in an upright position. The torch is suitable for tasks such as brazing, light cutting, medium cutting, light welding, and medium/heavy welding, depending on the specific application and safety precautions taken.

Important Technical Specifications:

While specific numerical technical specifications like BTU output or flame temperature are not explicitly listed in the provided manual, several functional and design specifications are highlighted:

Ignition System: Trigger-start mechanism for easy lighting.
Regulator: Built-in pressure regulator to ensure stable flame performance and reduce pulsation or yellow flames.
Fuel Compatibility: Designed for use with hand-held gas cylinders specifically designated for torches.
Holster System: Includes a holster with a belt clip for convenient carrying and storage of the cylinder and torch tip.
Flame Lock Feature: Allows for continuous flame operation without holding down the ignition button.
Adjustable Flame: Features an adjustment knob to control the flame intensity.

Usage Features:

The BZ8250HT torch is designed with several features to enhance user experience and safety:

Easy Assembly: The assembly process involves ensuring the regulator valve is off, then threading the fuel gas cylinder into the regulator clockwise until hand-tight.
Holster System: The included holster allows for secure attachment to a belt, enabling quick release of the cylinder in emergencies. The torch burn tip can be inserted into a metal tube on the side of the holster for storage.
Trigger-Start Ignition: To light the torch, the user points it in a safe direction, opens the regulator valve fully by turning the adjustment knob counter-clockwise, and then pulls the ignition button. The valve should always be fully open when lighting to prevent damage to the ignition system.
Flame Adjustment: After ignition, the flame can be adjusted by turning the adjustment knob to the desired setting.
Flame Lock: To engage the flame lock, the ignition button is depressed, and then the lock button is pressed down. Releasing the ignition button while holding the lock button keeps the flame engaged. To disengage, the ignition button is pulled until the lock releases.
Upright Operation Recommendation: It is recommended to start working with a disposable hand torch cylinder at room temperature and to keep the torch upright as much as possible to prevent flaring, especially when tipping the gas cylinder more than 60 degrees from its upright position.
Ventilation: The torch consumes oxygen and must only be used in well-ventilated areas; it should not be used in confined spaces.
Safety Gear: Users are advised to always wear safety glasses, protective gloves, and use proper tools for hot work. Specific lens shade numbers for glasses are recommended based on the type of operation (e.g., brazing, cutting, welding).

Maintenance Features:

Proper maintenance is crucial for the safe and effective operation of the BZ8250HT torch:

Leak Checks: Periodically check all joints and couplings for loose connections. With the valve closed and without lighting, test all connections with soapy water. If bubbles appear, gas is leaking, and the torch must be repaired or replaced. NEVER USE A FLAME TO CHECK FOR LEAKS. This test should be performed in a well-ventilated, spark-free area away from open flames.
Cleaning: While not explicitly detailed, general good practice for tools suggests keeping the torch clean and free of debris.
Storage: After use, ensure the regulator valve is fully closed by turning the flame adjustment knob clockwise until it stops. Once the torch is cool, disconnect the cylinder and store both the torch and cylinder separately, out of reach of children. Cylinders should not be exposed to temperatures exceeding 120°F (49°C) and must be stored in well-ventilated areas.
Inspection: Do not use a leaking, damaged, or malfunctioning torch. Any modifications to the torch construction or the use of unapproved accessories or fuels are strictly prohibited.
Pre-warming in Cold Weather: In cold weather, to produce a larger flame, pre-warm the cylinder to room temperature prior to use.

The manual also emphasizes several critical safety warnings, including the risks associated with flammable products, potential for explosion or fire, property damage, serious personal injury, or death if instructions are not followed. It highlights the presence of brass (which may contain lead) in the device's construction and combustion by-products that can cause birth defects, cancer, or other reproductive harm, necessitating use in well-ventilated areas and avoiding fumes from various materials. Users are cautioned against pointing the torch towards faces or flammable objects, using it as a cigarette lighter, and heating certain materials like gasoline tanks or aerosol cans. Always having a fire extinguisher and a bucket of water nearby is also recommended.