BNT-25X Battery Powered Rebar Tying Gun Instruction Manual

BNT-25X Battery Powered Rebar Tying Gun Instruction Manual

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BNT-Series Tiger Tier™ Callouts

Battery Charger

Safety First

• This machine is a high-performance battery-operated tool. Failure to follow the warnings and instructions may result in an electric shock, fire, or serious injuries.
• Always operate the tool with personal protection equipment (including eye protection, etc.). Using the appropriate safety equipment at all times will avoid injury.
• Keep children and bystanders away while operating this tool. Distractions may cause serious accidents. Do not aim the tool at those standing around your work area. Serious accidents can happen if you mishandle this tool.
• Do not place your hand or position the machine near your body. Doing this could cause serious injury.
• Do not attempt to dismantle, modify or perform any major maintenance on this tool. Modifications may deteriorate the tool’s performance and may cause severe injury, and void the warranty.
• Ensure that the main switch is off when the tool is not in use or when abnormalities occur. For example, when changing or adjusting the wire coil or when changing the battery pack, make sure to turn off the main power switch and lock the trigger or remove the battery.
• Do not place fingers or hands in the wire coil area. Doing so may cause injury.
• Do not operate this tool in the rain or areas where moisture is present. Doing so may result in electrical shock or accident.
• Stay particularly alert while working in a high area. Do not operate any power tool under the influence of drugs, alcohol, or medication. A moment of inattention may result in serious injury to you or someone near you.
• Do not operate this tool in a hazardous area containing flammable liquid, gas, or powders that may ignite and cause a fire.
• The charger unit uses standard AC power (100-240V ~ 50-60Hz). Do not recharge the battery using a gas generator power supply, as this will cause the electronic charger to malfunction.
• Our batteries charge best when the ambient temperature is between 32°F and 113°F. Therefore, Super-cooling or over-heating environments are not suitable for charging.
• Continuous use of the charger is not advised. This will shorten the battery’s life span and the charger’s performance. When not in the charging mode, the power supply must be unplugged.
• Please do not carry the charger by the cord. Also, do not pull out the power cord from the wall socket with the cord. This will damage the cord and break the wires or cause a short circuit. A damaged cord must be repaired or replaced immediately.
• Use only the specified charger that came with your machine. Using an unauthorized charger may result in damage to the battery components and a possible explosion.
• Avoid battery terminal contact with other metal objects. For example, trying to recharge the battery with an external wire could result in a short battery circuit.
• Do not throw away the protective battery cap. Use it to cover the terminal when not in use
  Make sure that all safety features are operational before using any power tool.

DO NOT OPERATE THE TOOL IF THE SAFETY LOCKS ARE NOT FUNCTIONAL. This tool is equipped with the following safety devices:

• The Main Switch: Please turn the main switch off when not in operation.
• The Trigger Lock: Always engage the trigger lock when not in use or when changing the wire spool.

Technical Data

Battery and Charger Usage

Before inserting or removing the battery from this tool, please set the main switch to the off position.

• To avoid a short circuit to the battery, always use the battery terminal cover when it is not in use with the tool.
• When placing the battery into the tool, press the battery lock before placing it into the battery holder. When removing the battery, press the battery lock button before pulling it out of the battery holder.
• Use 100-240V ~ 50-69Hz AC power supply for the charger. Fully insert the battery into the charger slot and it will begin to charge automatically as indicated by the charging light. It will take approximately 74 minutes to fully complete the battery charge.
• It is recommended to charge the battery between 32°F and 113°F. Do not charge in extreme cold or hot environments.

Machine Operation and Methods

• Before inserting or removing the wire spool turn the main power switch to off and lock the trigger.

• When installing the wire spool in this tool only use recommended wire that is clean and rust free.

• Only use recommended wire spools. Using non-standard wire or spool could cause the tool to malfunction.

• Press and lock the lever.

• Push the Reel Stopper to release the Reel Stay (door) and open.

• Cut about 2 inches of wire off the end of the coil.

• Install the wire spool with the left side facing the tool (left is marked on the spool). Close and latch the Reel Stay (door).

• Insert the wire into Wire Guide C.
  Note: the wire must not be bent or curved.

• The wire must pass through Wire Guide C and in between the two feeding gears until it reaches the flared tube. Then push the wire an additional ½ inch into the flared tube.

• Release the Release Stopper and confirm the Release Lever has returned to its original position.
  Note: the wire must be clamped in between the feeding gears.

• Turn on the main power switch and unlock the trigger. The tool is now ready for use.

How to remove the wire coil spool

• Turn off the main power switch, lock the trigger and remove the battery.
• Press the release lever and confirm that it is caught in the open position.
• Remove the plastic wire spool.

The Tying Procedure

• Unlock the trigger lock. Keep the mechanical arm on the rebars to be tied with a 45° angle at a vertical position to the rebars.

• Press the trigger and the tool will tie automatically.

• Remove the tool when the tying is complete.

• Do not press the trigger when the mechanical arm is not on the rebar surface.
  (Note: if this should happen turn off the machine, position the trigger lock to the “off” position and remove the trapped wire with a pair of pliers inside the machine mouth).

• Adjust the tie tightness. There are 9 tightness levels that can be adjusted.

The Digital Display: The left number on the LED display is the wire wraps (or loops). The second number is the tension.

Making Wire Wrap Adjustment: To adjust the wire wraps, hold the trigger down while turning the tool on and it will do one less loop than the default setting. When the tool is turned off it will reset to the default setting. The BNT-25X and the BNT-40X default setting is three loops. The BNT-58X default setting is four loops.

Making Tension Adjustment: Use the up or down button to increase or decrease the tightness of the ties. 1 is the lowest setting and 9 is the highest. Turn the tension up as much as it will tie without breaking the twist (or pig-tail). If it breaks the pig-tail, turn down the setting until it does not break. That is the tightest setting you can use.

Replacement of Gears

• Remove the screw that fastens the plastic cover over the motor.
• Remove Wire Guide “C” which is fastened to the plate.
• Remove the E-ring on Feed Gear B1. Press lever and remove feed gear.
• Release the lever and remove Comp. Spring 3. Be careful not to lose the smaller Comp. Spring 4 on the Release Stopper.
• Take out the screw and washers from the Release Lever and remove the Release Lever in the direction of the arrow.
• After you remove the Release Lever you can remove the E-ring and Pin to replace Feed Gear B2.
• After you finish replacing the gears reassemble the tool in reverse order.
• First install the Release Lever and fasten it.
• Install Comp. Spring 4 on the Release Stopper and Comp. Spring 3 on the Release Lever (press lever into locking position to hold springs in place while making sure spring 4 stays in place).
• Install Feed Gear B1 and E-ring in sequence.
• Install Wire Guide C on the plate. Finally attach the Motor Cover with the screw.

Care and Maintenance

• Perform a daily inspection prior to using this tool.
• Please maintain this electric tool carefully, making sure that the adjustments are correct and that it has been stored properly.
• Inspect the tool for damage and cracks in the housing and that the power supply is in good working order.
• Make sure that the battery charger is the one that came with your machine. Using another charger could cause damage to the battery and/or charger and could even cause a fire.
• Improper use of the battery could cause it to leak. If this happens it will need to be replaced and properly recycled. Do not touch any leaking material from this battery. If you come in contact with the battery liquid, flush with clean water and seek medical attention if necessary.

• When not in use, store this tool carefully in the supplied case. It can be washed with a soft cloth and soapsuds after you finish work. Do not use petroleum chemicals or alcohol to clean this tool.
• In the event that this tool malfunctions or drops in performance you can contact our Customer Service Repair Center: 800-992-3833 or mail@bnproducts.com.

How To Clear A Wire Jam On The BNT X Series Rebar Tiers

The three-beep audio error code on the BNT X Series Rebar Tier most likely signifies a wire jam in the nose of the tool. Here are the steps you can take to clear misfed wire.

1. Remove the two hex fasteners (905 & 912). A 2.5mm tool is supplied with the tier. Remove the arm unit cover plate (101) and set it aside (see picture 1).

2. Remove the three (3) hex fasteners (908) on the wire guide (115) and remove it (picture 2). leave the wire cutters and the connecting rod (108) in place (see picture 3)

3. Clean the channel on the backside of the wire guide with a wire brush or small screwdriver (see picture 4)

4. Reassemble the tool in reverse order. Make sure that the notch on the connecting plate fits into the half moon cut-out on the wire guide as seen in Picture 5.
   **Note: A tiny bit of grease can be put on the linkage points and fixed cutter but not too much as this will attract debris.

Note: Do not over tighten any of the fasteners.

Loop Diameters and Wire Lengths

Getting a loop sample

1. Pull the trigger while holding a screwdriver or pen in the tying position
2. Push the loops forward after pulling the trigger but before the tool twists the loops.
3. You can now measure the diameter of the loops.

The BNT-Series are hand-held battery operated tools. The tool is designed to be used for the fast tying of rebar or steel used in construction sites for the building trades. Due to its speed, convenience and safety, this machine can save a great deal of valuable labor and material resources. In addition, the parts and components as well as advanced production technologies are made from well-known manufacturers both here and abroad. This machine was developed as an economical and practical tying machine with many international patents.

For additional information including:

• Product Parts List
• Product Literature
• BNT Wire Supplies
• BNEX-40X – Arm extension with electronic trigger
• BNH-40 Holster – Heavy-duty holster
• BNTLI-20 – Replacement Lithium-ion Battery (18V)
• BNTLI-20C – Replacement Charger for the BNTLI-20 Battery
  Visit www.bnproducts.com or call 800-992-3833

NOTES:

BNT Series Accessories & Supplies

mail@bnproducts.com

References

• BN Products-USA, LLC - Professional Contractor Tools

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