Sealey STW501 User manual

3/4”SQ DRIVE BREAKBACK TORQUE WRENCH
300-1000NM
MODEL NO:STW501
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 INJURYAND WILL INVALIDATE THE WARRANTY. KEEP THESE INSTRUCTIONS SAFE FOR FUTURE USE.
Refer to
instruction
manual
Original Language Version
© Jack Sealey Limited
Wear eye
protection
1. SAFETY
9Ensure all workshop safety rules, regulations, and conditions are complied with when using the torque wrench.
9Maintain 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.
9The wrench is a precision tool, handle with care.
9Maintain correct balance and footing. Ensure the floor is not slippery and wear non-slip shoes.
9If it is suspect that the wrench is damaged or faulty, have it checked by Sealey or one of our Service Agents.
8DO NOT use wrench unless you have been instructed in its use by a qualified person.
8DO NOT use any cleaner which might affect the high pressure grease with which the wrench is packed.
8DO NOT use torque wrench as a lever bar.
8Use of damaged hand tools, sockets, extensions and accessories may result in injury.
8DO NOT use torque wrench as a hammer.
8Torque wrenches not in calibration may cause damage to parts or tools.
8DO NOT use extensions on handle as damage to torque wrench will result and will invalidate the Warranty.
8Over tightening of fasteners may result in breakage.
8Handle is not insulated, do not use on live electrical or high voltage circuits.
2. INSTRUCTIONS
Range 300-1000Nm (200-750 lbf.ft). Scales graduated in both lb.ft and Nm giving accurate results to ±4%. Calibration
tolerance in accordance with BS EN ISO 6789:2017. Every wrench is tested and supplied with an individually numbered test
 certicate.Breakbackdesignsignicantlyreducestheriskofovertorquing.Ratchetheadfeaturespush-throughdrivetoallow
torquing either clockwise or anti-clockwise. Comfortable soft grip handle. Supplied with additional tool to drive the external nut at
base of grip clockwise/anti-clockwise for easy torque adjustment/setting. Supplied in storage case.
3. SPECIFICATION
Model No:........................................................ STW501
Drive ................................................................... 3/4”Sq
Length..............................................................1550mm
Range .................................. 300-1000Nm(200-750lb.ft)
4. ASSEMBLY
Push in Pin locator (Fig1.1) and push bar (Fig1.2) into ratchet head (Fig1.3) making sure that the pin clicks into place. The assembled bar
willlookasin(g2).
g.2
g.1
13
2
STW501 Issue:3 (2,5) 19/01/23

Sealey Group, Kempson Way, Suffolk Business Park, Bury St Edmunds, Suffolk. IP32 7AR
01284 757500 [e-mail] www.sealey.co.uk
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: This product comes with a lifetime guarantee against manufacturing defects.
Original Language Version
© Jack Sealey Limited
REGISTER YOUR
PURCHASE HERE
5. OPERATION
5.1. Hold the torque wrench in your left hand (if right handed) so that the required scale on the shaft, just above the hand grip - is uppermost
and visible.(Fig.3).
5.2. Turn the lock handle provided, at the end of the grip (Fig.4) Use either nm or lbf.ft scales and set to the required torque then remove
handle.
5.3. When tightening the nut/bolt, press down smoothly, you will see the handle ‘break’ meaning that the torque point has been reached
(there is no audible ‘click’ sound). STOP pressing down. DO NOT force the wrench to avoid over-tightening the nut/bolt. The wrench will
reset ready for the next application.
5.4. After use adjust to lowest torque setting (but not below), clean and store in a safe, dry, childproof location.
NOTE: If the Torque Wrench has not been used for a period of time, operate a few times, ideally at the maximum setting. This
can also be completed at target torque, to ensure all internal parts are coated with grease.
6. RECALIBRATION
6.1.  Thedefaultcalibrationperiodof12months(or5000cycleswhicheveroccursrst)startsaftertherstuseofthetorquetool(BSEN
ISO 6789-1 refers).
6.2. Calibration should be checked periodically, depending on use and after any impact or other misuse. Also the interval between tests
shall be chosen on the basis such as: maximum permissible deviation, frequency of use, typical load during operation as well as
ambient conditions during operation and storage.
g.3 g.4
STW501 Issue:3 (2,5) 19/01/23