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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 AND CAUTIONS. USE THIS 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. PLEASE KEEP INSTRUCTIONS SAFE FOR FUTURE USE.
1. SAFETY INSTRUCTIONS
WARNING! Ensure Health & Safety, local authority, and general workshop practice regulations
are adhered to when using this equipment.
WARNING!Disconnect from air supply before changing accessories or servicing.
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.
WARNING! Check correct air pressure is maintained and not exceeded. We recommend 90psi.
Keep air hose away from heat, oil and sharp edges. Check air hose for wear before each
use and ensure that all connections are secure.
Only use impact sockets which are specifically designed for use with an impact wrench.
Wear approved safety eye/face shield, ear defenders, and hand protection.
WARNING! Due to the possible presence of asbestos dust from brake linings, when working
around vehicle brake systems we recommend you wear suitable respiratory protection
Maintain correct balance and footing. Ensure the floor is not slippery and wear non-slip shoes.
When not in use disconnect from air supply and store in a safe, dry, childproof location.
Keep children and non essential persons away from the working area.
DO NOT use the wrench for a task it is not designed to perform.
WARNING! DO NOT use wrench if damaged or thought to be faulty. (Contact Service Agent).
DO NOT use wrench unless you have been instructed in its use by a qualified person.
DO NOT carry the wrench by the air hose, or yank the hose from the air supply.
DO NOT operate wrench if you are tired or under the influence of alcohol, drugs or intoxicating
medication.
DO NOT carry wrench with your hand on the power trigger, in order to avoid unintentional
starting.
DO NOT direct air from the air hose at yourself or others.
DO NOT use worn or damaged sockets.
INSTRUCTIONS FOR:
TWIN HAMMER 1/2”
AIR IMPACT WRENCH
MODEL No: SA6021
Original Language Version
SA6021 Issue: 2 - 14/12/11
2. INTRODUCTION
Powerful 1/2”Sq drive impact wrench with high torque twin
hammer mechanism. Air motor features quality bearings,
steel end plates and carefully finished components to ensure
smooth running and maximum power. Handle exhaust
reduces noise output and limits the circulation of brake dust
on wheel applications. Combination forward/reverse and
speed selector. Suitable for heavy tyre shop use.
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4.1 Air Supply
4.1.1 Recommended hook-up procedure is shown in fig.1.
4.1.2 Ensure wrench air valve, or trigger, is in the OFF position before connecting it to air supply.
4.1.3 You will require an air pressure of 90psi, and an air flow according to specification.
WARNING! Ensure the air supply is clean and does not exceed 90psi whilst operating the
wrench. Too high an air pressure and unclean air will shorten the product life due to
excessive wear, and may be dangerous, causing damage and/or personal injury.
4.1.4 Drain the air tank daily. Water in the air line will damage the wrench.
4.1.5 Clean the air inlet filter weekly.
4.1.6 Line pressure should be increased to compensate for unusually long air hoses (over 8
metres). The minimum hose diameter should be ¼” I.D. and fittings must have the same
inside dimensions.
4.1.7 Keep the hose away from heat, oil and sharp edges. Check the hose for wear and make
certain that all connections are secure.
4.2 Couplings
4.2.1 Vibration may cause failure if a quick change coupling is connected directly to the wrench.
To overcome this, connect a leader hose to the wrench. A quick change coupling may then
be used to connect the leader hose to the air line recoil hose. Refer to figs.1 and 2.
4. PREPARING WRENCH FOR USE
5. OPERATING INSTRUCTIONS
WARNING! Ensure you read, understand and apply safety instructions before use.
NOTE : Only use impact sockets which are specifically designed for use with a impact wrench.
5.1 Connect the wrench to the air hose as in section 3.
5.2 Place the socket over the subject nut and depress the trigger to operate the wrench.
5.3 To change direction push the button at the rear of the head assembly.
5.4 The flow of air may be regulated by turning the same button.
DO NOT use any additional force upon the wrench in order to remove a nut.
DO NOT allow wrench to free run for an extended period as this will shorten its life.
Drive size ........................1/2’’Sq
Working/Max torque ............400/460lb.ft
Ultimate torque ...................500lb.ft
Free Speed.....................7000rpm
Air consumption ...................4.2cfm
Operating pressure..................90psi
Air inlet . . . ....... . . . . . . . . . . . . .1/4”BSP
Weight ....... . . . . . . . . . . . . . . . . . . 2.8kg
Vibration ....... . . . . . . . . . . . . . . .. 0.4m/s²
Sound pressure ............... 104dB(A)
fig 1
fig 2
Original Language Version
SA6021 Issue: 2 - 14/12/11
3. SPECIFICATION
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WARNING!Disconnect the wrench from the air supply before changing accessories,
servicing or performing maintenance. Replace or repair damaged parts. Use genuine parts
only. Unauthorised parts may be dangerous and will invalidate the warranty.
6.1 If the air system does not have an oiler, lubricate the air wrench daily with a few drops of
Sealey air tool oil dripped into the air inlet.
6.2 The gearbox can be lubricated by greasing via the nipple on the rear of the wrench head.
6.3 Clean the wrench after use.
6.4 Loss of power or erratic action may be due to the following:
6.4.1 Excessive drain on the air line. Moisture or restriction in the air pipe. Incorrect size or type
of hose connectors. To remedy, check the air supply and follow the instructions in chapter 3.
6.4.2 Grit or gum deposits in the wrench may also reduce the performance. If your model has an
air strainer located in the area of the air inlet, remove the strainer and clean it. Flush out the
wrench with gum solvent oil, or an equal mixture of SAE No 10 oil and paraffin. Allow to dry
before use.
6.4.3 For a full service contact your local Sealey service agent.
6.4.4 When not in use, disconnect the wrench from the air supply, clean it and store it in a safe,
dry, childproof location.
6. MAINTENANCE
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: Guarantee is 12 months from purchase date, proof of which will be required for any claim.
INFORMATION: For a copy of our latest catalogue and promotions call us on 01284 757525 and leave your full name and address, including postcode.
01284 757500
01284 703534
Sole UK Distributor, Sealey Group,
Kempson Way, Suffolk Business Park,
Bury St. Edmunds, Suffolk,
IP32 7AR
www.sealey.co.uk
Web
email
Original Language Version
SA6021 Issue: 2 - 14/12/11
Risk of Hand Arm Vibration Injury.
Air Impact Wrench 1/2” model no. SA6021
, when operated in accordance with these instructions and tested in accordance with
BS EN 28662-1:1993, ISO 8662-1:1988 and BS EN ISO 8662-7:1997
results in the following vibration emission declared in
accordance with BS EN12096:1996.
Measured vibration emission value:
0.4
m/s² Uncertainty:
0.16
m/s
²
These values are suitable for comparison with emission levels of other tools that have been subject to the same test.
This tool may cause hand-arm vibration syndrome if its use is inadequately managed.
This is a ‘NO LOAD’ vibration figure.
A competent person should carry out a risk assessment following HSE guidelines.
Measurement results can be highly variable, depending on many factors, including the operator's technique, the condition of the
work equipment, the material being processed and the measurement method.
Recommended Measures to reduce risk of hand-arm vibration syndrome:
We recommend appropriate safety equipment is utilised and regular breaks for the operator are employed to reduce any residual
risk of fatigue or repetitive strain injury.
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