Tohnichi Torque Gauge Model 6BTG-A-S Instruction Manual

1. Introduction

This manual provides essential instructions for the safe and effective operation, setup, and maintenance of your Tohnichi Torque Gauge Model 6BTG-A-S. This precision instrument is designed for accurate measurement and tightening within low torque ranges, specifically 0.6 to 6 inch-pounds (in.lbs.). Please read this manual thoroughly before using the device to ensure proper function and to prevent damage or injury.

2. Safety Information

Always observe the following safety precautions to prevent personal injury or damage to the instrument:

• Do not exceed the specified torque range of 0.6 to 6 in.lbs.
• Handle the gauge with care; it is a precision instrument. Avoid dropping or subjecting it to strong impacts.
• Ensure the workpiece is securely held before applying torque.
• Do not attempt to disassemble or modify the gauge. Refer all servicing to qualified personnel.
• Keep the gauge clean and free from dust, dirt, and corrosive substances.

3. Package Contents

Verify that all items are present upon unpacking:

• Tohnichi Torque Gauge Model 6BTG-A-S
• Calibration Certificate
• Plastic Storage Case
• Instruction Manual (this document)

4. Setup

The Tohnichi Torque Gauge 6BTG-A-S is designed for immediate use. No complex assembly is required.

1. Remove the torque gauge from its plastic storage case.
2. Inspect the gauge for any visible damage that may have occurred during shipping.
3. Familiarize yourself with the gauge's components, including the dial, pointers, and the three-fingered keyless metal chuck.

Figure 1: Front view of the Tohnichi Torque Gauge dial. The dial displays measurements in lbf·in, ranging from 0 to 6. It features a red memory pointer and a black live pointer. The model number "6BIG-A" is visible on the upper left of the dial, and "TOHNICHI MADE IN JAPAN" is at the bottom center.

5. Operating Instructions

The 6BTG-A-S gauge allows for both clockwise (CW) and counter-clockwise (CCW) torque measurement.

1. Attaching the Workpiece: Use the three-fingered keyless metal chuck to securely hold the item to which torque will be applied. Ensure the chuck is tightened sufficiently to prevent slippage during measurement.
2. Zeroing the Gauge: Before each measurement, ensure the main pointer is at the zero mark. If it is not, gently rotate the outer bezel until the pointer aligns with zero.
3. Applying Torque: Apply torque smoothly and steadily to the workpiece. The main pointer will move to indicate the applied torque.
4. Reading the Measurement:
   • The gauge features both a live pointer and a memory pointer. The live pointer indicates the current torque being applied.
   • The memory pointer (often red) will remain at the maximum torque value achieved during the measurement, allowing for easy reading after the torque has been released.
   • Read the value directly from the dial in inch-pounds (in.lbs.).
5. Resetting the Memory Pointer: After taking a reading, manually reset the memory pointer back to zero or to the live pointer's position by rotating the knob on the side or top of the gauge, depending on the specific design.

6. Calibration

Your Tohnichi Torque Gauge 6BTG-A-S is supplied with a calibration certificate, confirming its accuracy of +/-2% of the reading. Regular calibration is crucial for maintaining measurement accuracy. The frequency of calibration depends on usage and environmental conditions. It is recommended to follow industry standards or your company's internal calibration schedule. For re-calibration services, please contact Tohnichi authorized service centers.

7. Maintenance

Proper maintenance ensures the longevity and accuracy of your torque gauge.

• Cleaning: Wipe the gauge with a soft, dry cloth after each use. For stubborn dirt, a slightly damp cloth with mild soap can be used, followed by thorough drying. Do not use abrasive cleaners or solvents.
• Storage: Store the gauge in its plastic storage case when not in use to protect it from dust, moisture, and physical damage. Store in a dry, temperature-controlled environment.
• Inspection: Periodically inspect the chuck for wear and tear. Ensure the dial and pointers move freely without obstruction.

8. Troubleshooting

If you encounter issues with your torque gauge, consider the following:

• Inaccurate Readings:
  • Ensure the gauge was zeroed correctly before use.
  • Verify that the workpiece is securely held in the chuck.
  • Check if the gauge is due for re-calibration.
  • Avoid applying sudden or jerky torque, which can lead to inconsistent readings.
• Pointers Sticking:
  • Inspect for any foreign debris on the dial or around the pointers.
  • Ensure the gauge has not been dropped or subjected to impact. If damage is suspected, contact customer support.
• Chuck Not Holding:
  • Ensure the chuck is fully tightened.
  • Inspect the chuck jaws for wear or damage.

For issues not resolved by these steps, please contact Tohnichi customer support.

9. Specifications

10. Warranty and Support

Tohnichi products are manufactured to high standards of quality and precision. For information regarding warranty coverage, please refer to the documentation provided with your purchase or visit the official Tohnichi website. For technical support, service, or parts, please contact Tohnichi America directly. Contact information can typically be found on the Tohnichi website or on your purchase invoice.

Tohnichi America Contact:

• Website: Visit the Tohnichi Store on Amazon (for general information)
• For direct support, please search for "Tohnichi America" online to find their official contact details.