SEALEY STW903 SQ Drive Torque Wrench Micrometer Style Instruction Manual
- June 1, 2024
- SEALEY
Table of Contents
SEALEY STW903 SQ Drive Torque Wrench Micrometer Style
Thank you!
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.
Refer to
instructions
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 unauthorized 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 is packed.
✔ After use adjust to lowest torque setting (but not below),clean and store in
a safe, dry, childproof location.
INTRODUCTION
Flip reverse Chrome Vanadium steel ratchet heads 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 handles for comfort and control. Supplied in an EVA tray.
SPECIFICATION
Model No :…………………………………………………. STW903
Drive: …………………………………………………. 3/8”Sq Drive
Length :………………………………………………………. 420mm
Range: …………………………….. 20-120Nm (14.8-88.6lb.ft)
OPERATION
PREPARING TO SET TORQUE (fig.1)
-
Release torque adjuster by sliding the collar backwards. Set torque (see 4.2) and then lock in place by sliding the collar forwards.
-
SETTING TORQUE VALUE (fig.1, fig.2)
-
With the adjuster unlocked (fig.1), rotate the handle to reach the main scale value i.e. 60 Nm (fig.2) aligned with collar value 0.
-
To set the torque to more discrete values i.e. 52 Nm (fig.2) align main scale to 50 and then rotate collar value to 2 (fig.2).
-
Once the torque value is set, slide the locking ring forward to lock adjuster in position.
-
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.
RE-CERTIFICATION
- Unless otherwise stipulated, and to ensure continued accuracy of the torque tool, a period of 12 months, or 5,000 cycles (whichever occurs\ first), may be taken as default values for the interval between calibration checks. This calibration check should also be carried out if the torque tool has been subjected to an impact, has been misused, or the readings are suspect. Jack Sealey Ltd have up-to-date calibration checking equipment, certified to international standards, to carry out this service.
TORQUE TOOL CALIBRATION CERTIFICATE
Declaration of Conformance
(in accordance with BS EN ISO 6789-1:2017)1
| Test machine type/name | TORQUE TESTER |
|---|---|
| Test machine serial No. | 1806261 |
| Test machine calibration date | 29/05/2023 |
| Measurement error2 | ±1% |
| Measurement uncertainty | 0.20% |
| --- | --- |
| Ambient temperature | 26°C |
| Humidity | 52% |
| Test units: (Nm, lbf. ft, etc) | Nm |
| 1 | Min Torque: |
| --- | --- |
| Max torque: | 120 |
| Test % | Test Load |
| Min | Max |
| 20% | 24 |
| 60% | 72 |
| 100% | 120 |
| 2 | Min Torque: |
applicable)
---|---|---|---
Max torque:|
Test %| Test Load| Tolerance ± 4 % of Test Load| Completed test reading3
Min| Max| 1| 2| 3| 4| 5| Average
20%| 0| 0.00| 0.00| | | | | |
60%| 0| 0.00| 0.00| | | | | |
100%| 0| 0.00| 0.00| | | | | |
Tool Model Number| STW903
---|---
Tool Serial Number|
Tested by (print name)|
Date of test4|
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 ¼ 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 and its validity is open ended until the torque tool is used for the first time. Unless otherwise stipulated, a period of 12 months, or 5,000 cycles, whichever occurs first, may be taken as default values for the interval between calibration checks. This period starts after first use of the torque tool. (BS EN ISO 6789-1:2017, clause 5.3 refers).
© Jack Sealey Limited
CUSTOMERS SUPPORT
Parts support is available for this product. Please emailsales@sealey.co.uk or telephone 01284 757500
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. Proof of which is required for any claim.
Sealey Group, Kempston Way, Suffolk Business Park, Bury St Edmunds, Suffolk. IP32 7AR
01284 757500
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