LEXIVON LX-184 Drive Click Torque Wrench Instruction Manual

1/2-INCH DRIVE CLICK
TORQUE WRENCH
25-250 Ft-Lb/33.9-338.9 Nm

LX-184 OPERATING INSTRUCTION

ATTENTION
Please read and understand the entire manual, including all safety information, before using the torque wrench. This tool is a precision measuring instrument. Handle with care and store properly. Do not attempt to increase the leverage of this wrench with any other device. Failure to follow all instructions could result in damage to the torque wrench, property damage, or injury.
The wrench is shipped ready to use, calibrated, and tested to an accuracy of +/- 4%. To maintain this accuracy, it is important that the wrench is stored at the lowest torque setting, 25 ft.-lb. (33.9 Nm). This setting relieves extra tension on the internal spring, reducing fatigue that can adversely affect accuracy.

INTRODUCTION

A. Square Ratchet Head
B. Handle Body
C. Main Scale
D. Micrometer Scale
E. Knurled Handle
F. Lock Nut

This is a dual-range torque wrench marked with feet pounds (ft.-lb.) and Newton-meters (Nm) on opposite sides of the handle.

SETTING TORQUE READING

Foot Pounds (Example of setting 120 ft-lb)

1. Locate the lock nut on the end of the handle. Unlock knurled handle by turning the lock nut counterclockwise.

2. Turn the knurled handle until its top edge is even with the horizontal “100” mark on the main scale and the “0” mark on the micrometer scale is centered on the vertical line of the main scale.

3. The micrometer-scale divides the main scale markings into 25 divisions. Every micrometer-scale marking equals 5 ft.-lb. To increase torque from 100 to 120, turn the micrometer handles clockwise until the “20” mark is centered on the vertical line of the main scale. 100 ft.-lb. (main scale) + 20 ft.-lb. (micrometer scale) = 120 ft.-lb.

4. Lock torque setting by turning the lock nut clockwise until snug. The wrench is now set to measure 120 ft.-lb. of torque and ready to use.

NEWTON-METERS
(Example of setting 145.0Nm)
Setting desired torque on the Nm scale uses the same procedure described above for ft.-lb. scale. The micrometer-scale divides the main scale markings into 25 divisions. Every micrometer-scale marking equals 1.35 Nm. To set a torque value of 145.0 Nm, turn knurled micrometer handle until the top is aligned with the “135.6” mark on the main scale and the “0” mark on the micrometer scale is centered on the vertical line of the main scale.

To increase torque from 135.6 Nm to 145.0 Nm, turn the micrometer handle clockwise until the “7” mark is centered on the vertical line of the main scale. 145.0 Nm ­ 135.6 Nm = 9.4 Nm. 9.4 Nm / 1.35 = 7 micrometer-scale markings. The wrench is now set to measure 145.0 Nm of torque and is ready to use.

WRENCH OPERATION

1. Install proper socket/attachment on the square drive and apply to nut/bolt. Make sure to keep your tightening hand is centered on the knurled handle for accurate results.

2. Operate the wrench to tighten nut/bolt and slow operation when they became snug to a smooth and steady pull. When a CLICK’ orIMPULSE’ is heard or felt, stop
   pulling the wrench and releasing pressure on the handle.

3. CAUTION: PRECISION TOOL – Do not use for an extreme operation like breaking loose stuck fasteners. PRACTICE FIRST – Try wrenching 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.

IMPORTANT OPERATION NOTICE:

Operating a wrench too quickly or with too much force may cause you to miss the exact torque setting. Do not continue to pull after torque setting is reached. Doing so will damage the wrench internal mechanism. At low torque settings, click can be subtle. Use a wrench in a quiet environment. Do not use torque wrench to loosening fasteners. Torque is measured in the CLOCKWISE direction only! Tighten/adjust lock nut and knurled handle by hand only.

MAINTENANCE AND STORAGE

1. If the wrench has not been used for a long period of time, operate it several times at a low torque setting. This will allow internal lubricant to recoat internal components.

2. Keep the Torque Wrench Scale at the lowest setting when not in use. The lowest setting: 25 ft.-lb. mark on the main scale and `0′ mark on the micrometer scale. DO NOT turn handle below lowest torque setting.

3. This wrench is a precision measuring instrument. Take care to operate the wrench correctly. Store in a clean, dry environment

4. . Clean wrench by wiping with a clean, dry, lint-free cloth. Do not immerse in any type of liquid or cleaner. This may damage the internal components of the wrench.

TORQUE UNIT CONVERSION TABLE

CAUTION
PRECISION TOOL – Do not use it for an extreme operation like breaking loose stuck fasteners. PRACTICE FIRST – Try wrenching on a non-critical fastener first to learn how it works. OPERATE SLOWLY – Wrench “clicks” to notify when torque value is reached. The 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 the wrench to lowest torque value before storage. MEASURES IN ONE DIRECTION – Wrench only measures torque in right hand (clockwise) direction.

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