※Operating Instruction
Description
1/2” twin hammer mechanism composite air impact wrench, working torque for most of automotive
repairing job or garage working;1492 N.M of ultimate max loosening torque in reverse, twin hammer
mechanism is durable and quickly remove stubborn bolts under tough working conditions,Sealed in oil
bath lubrication keeps impact mechanism lubricated for less wear, Robust Fiberglass reinforced
composite housing helps insulate users’ hand from cold and Reduce vibration for less user fatigue, 6
vane rotor provides faster motor start up and greater performance with high torque,Three torque setting in
forward, Full Power torque in reverse, Full teasing trigger for improved operator control, best power to
weight ratio in economic cost.
Air supply
1. Ensure wrench air valve (or trigger) is in the “off” position before connecting to the air supply.
2. You will require an air pressure of 90psi, and an air flow according to specification.
3. WARNING! Ensure the air supply is clean and does not exceed 90psi while 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 or personal injury.
4. Drain the air tank daily. Water in the air line will damage the wrench.
5. Clean air inlet filter weekly.
6. Line pressure should be increased to compensate for unusually long air hoses (over 8 metres). The
minimum hose diameter should be 3/8” I.D. and fittings must have the same inside dimensions.
7. Keep hose away from heat, oil and sharp edges. Check hose for wear, and make certain that all
connections are secure.
Lubrication
An automatic in-line filter-regulator-lubricator is recommended (Fig4) as it increases tool life and keeps
the tool in sustained operation. The in-line lubricator should be regularly checked and filled with air tool
oil.
Proper adjustment of the in-line lubricator is performed by placing a sheet of paper next to the exhaust
ports and holding the throttle open approximately 30 seconds. The lubricator is properly set when a light
stain of oil collects on the paper. Excessive amounts of oil should be avoided.
In the event that it becomes necessary to store the tool for an extended period of time (overnight,
weekend, etc.), it should receive a generous amount of lubrication at that time. The tool should be run for
approximately 30 seconds to ensure oil has been evenly distributed throughout the tool. The tool should
be stored in a clean and dry environment.
It is most important that the tool be properly lubricated by keeping the air line lubricator filled and
correctly adjusted. Without proper lubrication the tool will not work properly and parts will wear
prematurely.
Use the proper lubricant in the air line lubricator. The lubricator should be of low air flow or changing
air flow type, and should be kept filled to the correct level. Use only recommended lubricants,
