AIR SOURCE
Clean air of 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 3/8 in. USS bolt size. Rating will decrease for U-Bolts,
Long Cap Screws, Spring Fasteners and rusted or 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 the fastener fails to move after 5 seconds, use a
larger 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. The air regulator 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. The 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 obtain a specific torque.
OPERATION
LUBRICATION & MAINTENANCE
Oil tool before each use. 4 to 5 drops of a good grade Air Tool Oil placed in the
air inlet is sufficient. Use proper air pressure and CFM rating listed for this tool.
Drain water from hoses and compressor tank. Water in the air supply line will
cause gumming and loss of power. Clean the air filter on the supply line and
flush the tool with gum solvent or a 50/50 mix of air tool oil and kerosene. It may
be necessary to disassemble the tool to properly clean and re-lubricate.
Motor
Oil
Trans.
Fluid
Brake
Fluid
Water
Whip
hose
Air Tool
Oil
Yes
No
Содержание M621
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