A wrench or key that is left attached to a rotating part of the tool may result in personal injury. PNEUMATIC TOOL USE . Do not force the tool. Tools do a better and safer job when used in the manner for which they are designed. Plan your work, and use the correct tool for the job. . Never use a tool with a malfunctioning switch. Any power tool that cannot be controlled with the switch is dangerous and must be repaired by an authorized service representative before using. . Check for misalignment or binding of moving parts, breakages of parts, damaged air hose (not included), and any other condition that may affect the tool’s operation. If damaged, have the tool serviced before using. Many accidents are caused by poorly maintained tools. . Disconnect air supply from tool and place the switch in the locked or off position before making any adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally. . Secure work with clamps or a vise instead of your hand to hold work when practical. This safety precaution allows for proper tool operation using both hands. . Store idle tools. When tools are not is use, store them in a dry, secure place out of the reach of children. Inspect tools for good working condition prior to storage and before re-use. . Use only accessories that are recommended by the manufacturer for your model. Accessories that may be suitable for one tool may create a risk of injury when used on another tool. . Keep guards in place and in working order. . Never leave tool running unattended. . Compressed air only. Only use clean, dry and regulated compressed air at no more than 90 PSI to power this tool. Never use oxygen, carbon dioxide or any other bottled gas as a power source for this tool. Page 3 of 8 . Use proper size and type air pressure line and fittings. The recommended air line for this tool is 3/8" delivering no more than 90 PSI. Recommended air inlet size is 1/4"-18NPT. . Use air hoses rated for safe operation of the tool. Air hoses rated for a maximum of 150 PSI or greater must be used with this tool. . Make sure the hose is free of obstructions or snags. Entangled hoses can cause loss of balance or footing. ASSEMBLY Figure 1. Optimal pneumatic set-up. NOTE: For best performance, it is recommended to incorporate an inline filter, regulator, and oiler similar to the set-up seen in Figure 1. Everything needed for the perfect set-up can be found at Northern Tool + Equipment. 1. You will need to attach a standard 1/4" air connector (not included) to the air inlet (29) of the tool. First wrap the threaded portion of the 1/4" air coupler with pipe thread tape. Then thread the air coupler into the air inlet (29), and tighten securely. 2. Turn on the air compressor, set the air pressure regulator of the compressor to 90 PSI, and connect the 3/8" air compressor hose to the air connector on air impact wrench with a quick connect coupler (not included). WARNING: Do not connect pneumatic tool to compressed air in which the pressure exceeds 90 PSI. Damage to your tool and possible personal injury may result. NOTE: If you are not using an automatic oiler system, before operation, add a few drops of pneumatic tool oil to the airline connection. Add a few more drops after each hour of continual use. 3. Check the air line and its connections for air leaks, and repair them before using this tool. 4. Turn off the compressor and disconnect the air source hose in preparation to attach the sockets into the impact wrench. OPERATING INSTRUCTION WARNING: Always disconnect from the air source before examining or changing sockets. 1. Select the appropriate size 3/8" drive socket, and attach the socket onto the wrench’s anvil. 2. Turn the air regulator (32) in the direction indicated by the “H” arrow on the regulator to increase the power. Turn it toward the “L” arrow to decrease the power. Page 4 of 8 3. Set the forward/reverse lever to the left, so that the anvil turns clockwise (forward). 4. Turn on the air compressor, confirm the compressor’s pressure regulator is set to 90 PSI, and connect the compressor hose to the air ratchet wrench at the air inlet (29). 5. Place the socket (not included) over the nut you wish to tighten. 6. Grip the impact wrench firmly with two hands and gently squeeze the trigger. 7. When the nut is tightened, release the trigger. Turn off the air compressor and disconnect the hose. 8. If necessary, check the recommended torque specification for the nut and use a manual torque wrench to achieve the proper setting. WARNING: If the impact wrench cannot tighten, or loosen, the nut to your satisfaction, do not raise the air pressure on the compressor over 90 PSI. Pressures above 90 PSI will strip the workpiece and damage the tool, potentially causing the tool to fail, causing serious injury. Use other appropriate methods and tools to tighten the nut. Loosening 9. Set the forward/reverse ever to the right,...