LEXIVON LX-181 Pound Torque Wrench User Manual
- June 17, 2024
- LEXIVON
Table of Contents
LEXIVON LX-181 Pound Torque Wrench
ATTENTION
- Before using the torque wrench, make sure to read and understand the entire manual, including safety information. Not following the instructions could result in damage to the tool, property, or personal injury.
- Treat this precision measuring tool with care and store it properly. Avoid using any additional devices to increase leverage of this wrench.
- It is recommended to practice first with a non-critical application. Be aware that at low torque settings, the click may be subtle; pull the wrench slowly to observe and learn to recognize the click both audibly and by feel.
- The wrench is calibrated & delivered in a ready-to-use condition. Tested to an accuracy of +/- 4%. To preserve this accuracy, it’s crucial to store the wrench at its lowest torque setting of 20 in.b. (2.26 Nm). By utilizing this setting, any additional strain on the internal spring is relieved, minimizing fatigue that will impact the wrench’s accuracy.
INTRODUCTION
Throughout the instruction manual, the wrench body scale will be referred to as the “main scale, ” and the knurled handle scale will be referred to as the “micrometer scale”. This torque wrench is dual-side marked with Inch-Pounds (in.-|b.) and Newton-Meters (Nm) on opposite sides of the wrench body.
SETTING TORQUE READING
INCH-POUNDS (Example of setting 119 in-ib)
- Find the locking knob positioned at the end of the knurled handle. Release the knurled handle by rotating the locking knob in a counterclockwise direction.
- Rotate the knurled handle until its top edge aligns with the horizontal “110” mark on the main scale, while the “O” mark on the micrometer scale is centered on the vertical line of the main scale
- The micrometer scale divides the main scale into 15 divisions, each marking representing 1 in.-Ib. To adjust the torque from 110 to 119 in.-Ib., rotate the micrometer handle in a clockwise direction until the “9” mark (9 micro-movements) aligns with the vertical line on the main scale. This adds 9 in.-Ib. to the main scale reading of 100 in.-Ib., resulting in a total torque of 119 in.-Ib.
- Lock the torque setting by turning the locking knob clockwise until snug. Wrench is now set to measure 119 in.-Ib. of torque and ready to use.
NEWTON METERS
To set the desired torque using the Nm scale, follow the same procedure as you would for the in-lb scale. However, It is essential to keep in mind that every mark/increment on the micrometer scale will now represent 0.113 Nm. Contrasting with the in-lb setting procedure, where each mark on the micrometer scale represents 1 in.-lb., when referring to the Nm setting, the value of each mark on the micrometer scale is 0.113. When using the torque wrench’s Newton Meter scale, it’s crucial to keep this conversion factor in mind. Make sure you calculate each increment as 0.113 Nm to accurately set the desired torque value.
WRENCH OPERATION
- Install proper socket/attachment on the square drive and apply to nut/bolt. Make sure to keep your tightening hand centered on the knurled handle for accurate results.
- Operate the wrench to tighten the nut/bolt, gradually increasing the force until they are snug. Slow down your operation and apply a smooth and steady pull. When you hear or feel a ‘CLICK’ or ‘IMPULSE’, stop pulling the wrench and release the pressure on the handle.
- The wrench will automatically reset for the next operation after pressure is released.
SPECIFICATIONS
- Range – In-Lb: 20 ~ 200
- Range – Nm: 2.26 ~ 22.6
- Increment: 1 In-Lb (0.113 Nm)
- Accuracy: ≤ 4 percent
- Length: 10-7/8 Inch
- Ratchet: Cr-V, 24 tooth gear
- Finish: Electro-Black
- Standard: ASME B107.300
DIN-ISO-6789
Torque is measured exclusively in the clockwise direction only.
IMPORTANT OPERATION NOTICE
Operating the wrench too quickly or with excessive force may lead to missing the precise torque setting. Once the torque setting is reached, do not continue pulling, as this can damage the internal mechanism of the wrench. At low torque settings, the click may be subtle. It is recommended to use the wrench in a quiet environment and learn to both hear and feel the click for proper torque application. Do not attempt to use the torque wrench to loosen stuck fasteners. Tighten/adjust the locking knob and the knurled handle by hand only is Remember, torque is measured exclusively in the clockwise direction.
MAINTENANCE AND STORAGE
- If the wrench has not been used for an extended extended i several times at a low torque setting. This will allow internal lubricant to recoat internal components.
- Keep the Torque Wrench at the lowest setting when not in use. The lowest setting: 20 in.-Ib. mark on the main scale and the micrometer scale.
- DO NOT turn the handle being the lowest
This wrench is a precision measuring instrument. Take care and operate correctly. Store in a clean, dry environment. Clean by wiping with a dry, lint-free cloth. Do not immerse in any liquid or cleaner, as it can damage the internal components of the wrench.
TORQUE UNIT CONVERSION TABLE
CAUTION:
- PRECISION TOOL – Do not use for extreme operation like breaking loose stuck fasteners.
- PRACTICE FIRST – Try wrench on a non-critical fastener first to learn how it works.
- OPERATE SLOWLY – Wrench “clicks” to notify when torque value is reached. Wrench does not stop applying force automatically.
- LISTEN AND FEEL – At low torque settings clicks is subtle. Learn to hear and feel the click.
- STORE AT LOWEST SETTING – To maintain calibration, set wrench to lowest torque value before storage.
- MEASURES IN ONE DIRECTION – Wrench only measures torque in right hand (clockwise) direction.
THE LX-181 MEASURING INSTRUMENT INCLUDES
A STANDARD 1-YEAR WARRANTY
TO EXTEND THE WARRANTY FOR A TOTAL OF 2 YEARS
Simply register your new product online within 90 days of purchase register
at: www.lexivon.com/product-registration
FOR ANY HELP YOU MIGHT NEED PLEASE DON’T HESITATE TO CONTACT US
support@lexivon.com
www.lexivon.com/support
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