Sealey Air Impact Wrench - 3/4"sq Drive - SA4

- Fastening Torque: 520lb.ft(707Nm). - Breakaway Torque: 540lb.ft(734Nm). - Suitable for heavy gar...

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eBaySealey SA4 Air Impact Wrench 3/4""Sq Drive Heavy-Duty
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Tooled UpSealey SA4 Heavy Duty Air Impact Wrench 3/4" Drive
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OnBuy.comSealey Air Impact Wrench 3/4"Sq Drive Heavy-Duty
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Robert DyasSealey SA4 Air Impact Wrench 3/4"sq Drive - Heavy-duty - Aluminium Housing - Variable Torque Control
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Rapid Online - Rapid Electronics Ltd.Sealey SA4 Air Impact Wrench 3/4"sq Drive Heavy-duty
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Product Information

Full details

This Sealey Air Impact Wrench (Model SA4) is designed for heavy-duty automotive tasks in professional garages and tyre shops. Its primary benefit is delivering significant torque for rapid fastening and loosening of stubborn bolts and nuts. A caveat is its requirement for a robust air supply and appropriate safety precautions due to its power.

All features

Model Part NumberSA4
BrandSealey

Extended Product Information

FAQs

What is the maximum torque output of this impact wrench?

The Sealey SA4 has a fastening torque of 520lb.ft (707Nm) and a breakaway torque of 540lb.ft (734Nm).

What size air compressor do I need for this tool?

The tool requires a robust air supply. Consult the tool's manual for specific CFM and PSI requirements, but generally, a higher capacity compressor is recommended for heavy-duty use.

How often should I lubricate the tool?

It is recommended to lubricate the tool with a few drops of air tool oil daily, by introducing it into the air inlet before use.

Can this wrench be used for light-duty tasks?

No, this is a heavy-duty impact wrench designed for demanding applications. Its high torque may be excessive for delicate tasks and could cause damage.

What is the drive size of this impact wrench?

The drive size is 3/4" square drive.

How do I switch between tightening and loosening modes?

The tool features a reversible action, typically controlled by a selector switch or lever located on the body of the wrench. Simply move the selector to the desired direction.

Troubleshooting

Tool lacks power or torque

Check air pressure from the compressor, ensure the air hose is of adequate diameter and length, and verify the tool is properly lubricated. Clean air inlet screens if clogged.

Tool will not reverse

Inspect the forward/reverse selector switch to ensure it is fully engaged in the desired position. Check for any obstruction in the mechanism.

Excessive vibration

This can indicate internal wear. Ensure the anvil and hammer mechanism are intact and properly seated. Professional servicing may be required.

Air leaks from the housing

Check all air line connections. If leaks are from the tool housing itself, it may require disassembly and seal replacement by a qualified technician.

Pros and Cons

Pros

  • Exceptional torque for tough jobs
  • Robust and durable construction for professional use
  • Variable control offers versatility
  • Reversible function speeds up tasks
  • Comfortable grip for extended use

Cons

  • Requires a powerful air compressor
  • Can be noisy during operation
  • Heavy-duty use may require regular maintenance
  • Not suitable for delicate or light-duty tasks
  • Potential for over-tightening if not used carefully

Setup, Compatibility & Care

Setup:

  1. Connect the wrench to a suitable air hose using a compatible 3/4" drive coupler.
  2. Ensure your air compressor can provide the required airflow and pressure for optimal performance.
  3. Before initial use, briefly run the tool to lubricate the internal mechanism. A few drops of air tool oil in the air inlet is recommended.

Compatibility:

  • Requires a 3/4" square drive impact socket set.
  • Needs an air compressor capable of delivering sufficient PSI and CFM (refer to tool's manual for specific requirements).

Care:

  • Drain air line daily and lubricate tool with air tool oil.
  • Keep the tool clean and free from debris, especially around the air inlet and hammer mechanism.
  • Store in a dry environment when not in use.
  • Periodically check for wear on the anvil and hammer mechanism.

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