1/2”SQ DRIVE MICROMETER TORQUE WRENCH
MODEL NO:
STW400
Thank you for purchasing a Sealey product. Manufactured to a high standard, this product will, if used according to these instructions,
and properly maintained, give you years of trouble free performance.
IMPORTANT:
PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS & CAUTIONS. USE
THE PRODUCT CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY CAUSE DAMAGE AND/OR
PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY. KEEP THESE INSTRUCTIONS SAFE FOR FUTURE USE.
1. SAFETY
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Ensure all workshop safety rules, regulations and conditions are complied with when using the torque wrench.
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Maintain the
wrench in good condition and replace any damaged or worn parts.
Use genuine parts only. Unauthorised parts
may be dangerous and will invalidate the warranty.
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The wrench is a precision tool,
DO NOT
abuse it.
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Maintain correct balance and footing. Ensure the floor is not slippery and wear non-slip shoes.
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Keep children and unauthorised persons away from the working area.
WARNING! DO NOT
use the wrench if damaged or thought to be faulty (Contact Service Agent).
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DO NOT
drop or throw the wrench.
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DO NOT
use wrench unless you have been instructed in its use by a qualified person.
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DO NOT
use any cleaner which might affect the high pressure grease with which the wrench it is packed.
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After use adjust to lowest torque setting (but not below),clean and store in a safe, dry, childproof location.
2. INTRODUCTION
Flip reverse Chrome Vanadium steel ratchet head with smooth action mechanism. Scale graduated in Nm and lb.ft. Calibration tolerance in
accordance with BS EN ISO 6789-1:2017. Wrenches are individually tested to standards with ±4% accuracy and each wrench is issued with an
individually numbered test certificate. Aluminium knurled handle for comfort and control. Supplied in storage case.
3. SPECIFICATION
Model no .................................................................. STW400
Drive ........................................................................... 1/2”Sq
Length ........................................................................ 430mm
Range .......................................... 25-220Nm(18.5-162.4lb.ft)
4. OPERATION
4.1.
Hold torque wrench so that required scale - foot.pounds or Newton.metres - is uppermost and visible.
4.2.
Pull collar downwards to adjust torque setting.
4.3.
Turn adjusting grip to select torque setting as follows, for a required setting of 56ft.lb:
4.4.
Turn grip until top edge of grip is level with the 50ft.lb line on the handle scale and the zero graduation on the grip is aligned with the
centre line of the handle scale.
Rotate handle further, clockwise, until 6.0 graduation on grip is aligned with centre line to give a setting of 50 + 6 = 56ft.lb.
4.5.
When tightening the nut/bolt you will feel and hear the wrench mechanism click when the set torque is reached.
Immediately stop applying force to wrench to avoid overtightening nut/bolt. Wrench will reset ready for next application.
NOTE:
If the wrench has not been used for some time, operate it a few times, at a low setting, to ensure all internal parts are coated in
grease.
5. RECALIBRATION
5.1.
CALIBRATION CHECK
We recommend to ensure continued accuracy the calibration of each wrench should be checked annually, beginning one year after
first use. Calibration should also be checked after any impact, over-torquing or other misuse. Contact your Sealey stockist to arrange
recalibration.
Refer to
instruction
manual
STW400 Issue:1 14/06/22
Original Language Version
© Jack Sealey Limited
