WARNING: The warnings, cautions, and in-
structions discussed in this instruction manual
can not cover all possible conditions and situ-
ations that may occur. It must be understood
by the operator that common sense and cau-
tion are factors which can not be built into this
product, but must be supplied by the operator.
OPERATION INSTRUCTIONS
AIR PRESSURE AND VOLUME
If the tool is not performing the specified jobs,
check the following:
• Check if the air compressor has the CFM out-
put to support the air tool.
• Check if the air transmission lines are too
small.
• Check if the air hose is too small.
• Check if the hose fitting and couplings are
too small.
• Check the compressor regulator.
• Refer to the catalogue specifications for
proper air hose size. Use hose that is just long
enough to serve the working area. Excessive
hose length will cause a drop in pressure.
COMMON PROBLEMS
• Contaminated air such as a dirty air system or
water in the system.
• Using the wrong size tool for the job.
• Poor maintenance practices, such as using ex-
cessive air pressure or air volume.
• Improper or no lubrications.
RULE OF THUMB
If it takes more than 8 seconds to tighten or to
loosen a bolt or nut with an air impact wrench,
the air wrench is too small or the air compres-
sor CFM is not powerful enough for the job.
Continuing using the tool will cause damage.
Following information will assure proper per-
formance.
LUBRICATION
Use light oil containing rust inhibitors, such as
SAE # 5W or SAE # 1010w.
Use grease that is highly water resistant for the
front case components on air impact wrenches,
grinders, and sanders.
AIR SYSTEM
Make sure the compressor being used with the
air tool supplied adequate output (CFM).
Equip the air compressor intake with a replace-
able air filter that can be easily cleaned.
Always use moisture traps at the compressor
for the main distribution line. Use moisture
traps and in line oilers on each downlink that
is to be used for air tools.
Place oiler as close to the air tool as possible for
the best lubrication.
TOOL PRESSURE
All the air tools should operate at 70-100 PSI
(90 PSI preferred), measured while the tool is
operating. Pressure in excess of 100 PSI will
shorten the life of the tool and cause unneces-
sary down time.
SQUARE DRIVE
FREE SPEED
MAX. TORQUE
AIR CONSUMPTION
AIR INLET
WEIGHT
1/2” (12,7 mm)
7 500 r/min
443 ft-lb (600 Nm)
3,4 CFM (100 l/min)
1/4" NPT
2,75 kg (6 lb)
5
E N G L I S H •
User’s manual
TECHNICAL DATA
UP731A manual.indd 5
09/08/16 4:46 p.m.
