SEALEY AK628 Micrometer Torque Wrench Instruction Manual
- June 12, 2024
- SEALEY
Table of Contents
SEALEY AK628 Micrometer Torque Wrench
Product Information
The 3/4SQ Drive Calibrated Micrometer Torque Wrench, model number AK628, is a high-quality precision tool manufactured by Sealey. It is made of heat-treated steel with a fully hardened and tempered ratchet head. The wrench is chrome- plated for corrosion resistance and has a calibration tolerance in accordance with BS EN ISO 6789-1:2017. Each wrench is tested and supplied with an individually numbered test certificate. The torque range is 68-407Nm (50-300lb.ft). The wrench features a flip reverse ratchet mechanism and comes in a storage case.
Product Usage Instructions
- Ensure all workshop safety rules, regulations, and conditions are complied with when using the torque wrench.
- Maintain the wrench in good condition and replace any damaged or worn parts. Use genuine parts only to avoid potential dangers and to keep the warranty valid.
- Handle the wrench with care as it is a precision tool. Do not abuse it.
- Maintain correct balance and footing while using the wrench. Ensure the floor is not slippery and wear non-slip shoes.
- Keep children and unauthorized persons away from the working area.
- Do not use the wrench if it is damaged or thought to be faulty. Contact the Service Agent for assistance.
- Avoid dropping or throwing the wrench to prevent damage.
- Only use the wrench if you have been instructed in its use by a qualified person.
- Do not use any cleaner that might affect the high-pressure grease with which the wrench is packed.
- After use, adjust the wrench to the lowest torque setting (but not below), clean it, and store it in a safe, dry, childproof location.
To operate the torque wrench:
- Hold the torque wrench in one hand, ensuring that the required scale (lb.ft or Nm) is uppermost and visible.
- Turn the knurled lock screw at the end of the handle anticlockwise to unlock the knurled adjusting grip.
- Turn the adjusting grip to select the torque setting. For example, to set the wrench at 56lb.ft:
- Turn the grip until the top edge of the grip is level with the 50lb.ft line on the handle scale.
- Align the zero graduation on the grip with the center line of the handle scale.
- Rotate the handle further clockwise until the ‘6’ graduation on the grip is aligned with the center line, resulting in a setting of 50 + 6 = 56lb.ft.
Note : If using the Nm scale, each division on the grip graduation is equivalent to 1.36Nm. Therefore, to set the wrench at 100Nm, adjust accordingly.
Remember to always follow safety precautions and use the torque wrench correctly and with care for its intended purpose. Failure to do so may cause damage or personal injury and will invalidate the warranty. Keep these instructions safe for future reference.
3/4”SQ DRIVE CALIBRATED MICROMETER TORQUE WRENCH
MODEL NO: AK628
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.
SAFETY
-
Ensure all workshop safety rules, regulations, and conditions are complied with when using torque wrench.
-
Maintain the wrench in good condition and replace any damaged or worn parts. Use genuine parts only. Non-authorised parts may be dangerous and will invalidate the warranty.
-
The wrench is a precision tool, DO NOT abuse it.
-
Maintain correct balance and footing. Ensure the floor is not slippery and wear non-slip shoes.
-
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). -
DO NOT drop or throw the wrench.
-
DO NOT use wrench unless you have been instructed in its use by a qualified person.
-
DO NOT use any cleaner which might affect the high pressure grease with which the wrench it is packed.
After use adjust to lowest torque setting (but not below),clean and store in a safe, dry, childproof location.
INTRODUCTION
Heat treated steel ratchet head. Fully hardened and tempered. Chrome plated for corrosion resistance. Calibration tolerance in accordance with BS EN ISO 6789-1:2017. Every wrench is tested and supplied with an individually numbered test certificate. Micrometer type torque range adjustment with scale graduated in both Nm and lb.ft. Flip reverse ratchet mechanism. Supplied in storage case.
SPECIFICATION
- Model no …………………………………………………………… AK628
- Drive ………………………………………………………………… 3/4”Sq
- Length……………………………………………………………… 660mm
- Weight………………………………………………………………. 3.87kg
- Torque range………………………………. 68-407Nm (50-300lb.ft)
OPERATION
-
Hold torque wrench in one hand so that required scale (lb.ft or Nm) is uppermost and visible.
-
Turn knurled lock screw at end of handle anticlockwise to unlock knurled adjusting grip.
-
Turn adjusting grip to select torque setting as follows:
Required setting – 56lb.ft
Turn grip until top edge of grip is level with the 50lb.ft line on the handle scale and the zero graduation on the grip is aligned with the centre line of the handle scale.
Rotate the handle further, clockwise, until the ‘6’ graduation on the grip is aligned with the centre line to give a setting of 50 + 6 = 56lb.ft.
Note: If using the Nm scale then each division on the grip graduation is equivalent to 1.36Nm.
Therefore to set wrench at 100Nm:
Turn grip until top edge of grip is level with the 94.9Nm line on the handle scale and the zero graduation on the grip is aligned with the centre line of the handle scale.
Rotate the handle further, clockwise, until the ‘4’ graduation on the grip is aligned with the centre line to give a setting of 94.9 + (4 x 1.36)
= 94.9 + 5.44 =100.34Nm -
Tighten the knurled lock screw at the end of the handle to prevent accidental alteration of the setting.
-
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 the wrench to avoid over-tightening the nut/bolt. The torque wrench will reset ready for the next application.
Note : If the torque 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.
RECALIBRATION
- In order to ensure continued accuracy, the torque wrench should be recalibrated annually and after any impact or other misuse. Contact a NAMAS accredited laboratory
TORQUE TOOL CAL IBRATION CERTIFICATE
Declaration of Conformance
(in accordance with BS EN ISO 6789-1:2017)1
Notes:
- Testing is in compliance with International Standard procedures, with test equipment calibrated by a laboratory traceable to International Standards.
- Measurement error shall be less than % Of the maximum permissible relative deviation Of the torque tool.
- The observed values fall within the maximum permissible deviation (tolerance). For tools with a flexible head, the result is valid only if the measuring axis is perpendicular to the axis Of the tool.
- This Sealey Declaration Of Conformance is issued at the time Of manufacture. Its’ validity is open ended until the torque tool is used for the first time. The default re-calibration period of 12 months (or 5,000 cycles, whichever occurs first) Starts after first use Of the torque tool (BS EN ISO 6789-1:2017, clause 5.3 refers).
ENVIRONMENT PROTECTION
Recycle unwanted materials instead of disposing of them as waste. All tools, accessories and packaging should be sorted, taken to a recycling centre and disposed of in a manner which is compatible with the environment. When the product becomes completely unserviceable and requires disposal, drain any fluids (if applicable) into approved containers and dispose of the product and fluids according to local regulations.
Note: It is our policy to continually improve products and as such we
reserve the right to alter data, specifications and component parts without
prior notice.
Important: No Liability is accepted for incorrect use of this product.
Warranty: Lifetime guarantee from purchase date, proof of which is
required for any claim.
Sealey Group, Kempson Way, Suffolk Business Park, Bury St Edmunds, Suffolk.
IP32 7AR
01284 757500 sales@sealey.co.uk
www.sealey.co.uk
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