Clean air and correct air pressure is recommended for the power supply for this tool. A maximum of 90
PSI at the tool is recommended for most air tools of this class. Check specifications section for
recommended pressure. (Depending on length of air hose and other circumstances, air pressure at
compressor may need to be increased to 100 PSI to ensure 90 PSI at the tool.)
Water in the air hose and compressor tank contributes to reduced performance and damage of the air
tool. Drain the air tank and filters before each use and as necessary to keep the air supply dry.
Hose length over 25’ causes loss in line pressure. Increase hose I.D. or increase compressor pressure to
compensate for the pressure loss. Use an in-line pressure regulator with gauge if air inlet pressure is
critical.
1. This impact wrench is rated to 1/2” USS bolt size. Rating will decrease for U-Bolts, Long Cap Screws,
Spring Fasteners and rusted/corroded fasteners. All of these factors absorb power and reduce torque
capability.
2. Use the simplest socket to wrench hook-up. Any additional extensions, u-joints or adaptors will absorb
power and reduce torque capability.
3. Use only impact sockets designed for impact wrenches.
4. Forward/Reverse Lever .Select “F”for Forward (Clockwise) or “R”for Reverse (Counter clockwise)
operation. Do not attempt to change direction while tool is running.
5. If fastener bogs, slows or binds the tool (or, if fastener
fails to move in 5 seconds), use a large size impact
wrench with a higher torque rating. Overloading this tool
will cause premature wear and/or permanent damage to
internal and external drive parts and will void warranty.
6. Air regulator. This can be used as an air throttle. Turn air
regulator knob out (Counter-clockwise) for maximum
power.
7. Torque setting: to set the tool to desired torque, select a
fastener of known tightness of the same size, thread pitch
and thread condition as those on the job. Turn air
regulator to lowest position. Apply wrench to (Turn
regulator out) until fastener moves slightly in the direction
it was originally set. This wrench is now set to duplicate
the torque applied to this fastener. Critical torque
specifications cannot be met by any wrench in this class.
Use an appropriate torque wrench to attain a specific
torque.
INSUFFICIENT POWER:
Probable Cause Solution
Dirty or clogged air passages Flush and lubricate tool, drain air tank and
supply line. insufficient air supply increase line pressure,
Make sure compressor matches tool's air
pressure and consumption needs.
Air leakage Use Teflon tape at all fittings and joints. Check
tool for leaks and repair as necessary
Worn/damaged wear & tear Be sure you are using a tool suited for the
torque parts tool matching requirements of the job at hand.
