INSTRUCTION'S
Sioux' Air Impact Wrench
No s. 313, 314, 303
OPERATION
The efficiency of the Air Impact Wrench is dependent on the proper supply of clean dry air
at the proper pressure of 90 psi (6.33 KG/CM .2). The use of line filters, pressure regulators
and lubricators will insure maximum output and service of air tools. If no air filter is used drain
air tank frequently to prevent moisture from entering air tool.
HOSE AND HOSE CONNECTION
Hose and hose couplings should not be smaller than 7/32 (5.5 MM) inside diameter, 5/16 (7.94
MM) inside diameter hose is preferable. Smaller hose and those couplings will restrict the flow of
air and reduce the power of impact wrench. If quick couplers are used do not fasten them direct-
ly to the tool, use No. 1370 6 ft. leader hose between the tool and quick couplers.
LUBRICATION
Sioux has tested many oils and greases, many of which are good, but very few meet the special
requirements of air tools. In order that users of Sioux air tools get the best performance from the
tool, the following lubricants are recommended:
Sioux Air Motor Oil for air motors No. 288.
Sioux Special Grease Type A for hammer case No. 289.
HAMMER CASE
The hammer case mechanism is packed with Sioux Special Grease Type A. Every 40 hours of op-
eration add up to
Y4
oz. of Sioux Special Grease Type A. A 1
Y
oz. tube of grease, Cat. No. 289
is packed with each wrench.
AIR MOTOR
Air Line Lubricators are recommended and when used set flow of oil to deliver 2 to 4 drops per
minute to the air tool. When air line lubricator is not used, disconnect quick coupler and squirt
small amount of Sioux Air Motor Oil into leader hose every 4 hours. Daily before using, and after
each 4 hours of service, squirt a small amount of Sioux Air Motor Oil into leader hose.
POWER SELECTOR
The Sioux Air Impact Wrench is designed to operate at
90
lbs. per sq. inch at the tool. The power
selector, which is numbered
to 8, will adjust the torque output to the requirements of the user.
The impact wrench operates at full power when power selector is set at No.8.
LOSS OF POWER
1.
Hose too small. (See Hose and Hose Connec tion ) .
2. Excessive amount of moisture in air line. Drain compressor air tank and air line filter if used.
3. Loose, worn, or cracked sockets will rdeuce torque output. Use deep sockets rather than exten-
sion bar whenever possible.
4. Dirt or sludge in wrench. Disconnect leader hose and flush out air motor using a good grade
petroleum solvent. Squirt solvent directly into leader hose. Connect to supply line and depress
trigger and allow dirt and sludge to come out exhaust. Repeat if necessary. Lubricate the wrench
according to directions under Lubrication immediately.
FORM A1J-4I·67
SIOUX TOOLS INC.
SIOUX CITY, IOWA, U.S.A.
51102
