Napa PROFESSIONAL 6-1076 Guide D'utilisation page 5

OPERATION
The air regulator knob can
be used as an air throttle, if
there are no other means of
regulating air. Turn the air
regulator knob all the way
to highest position for
maximum power.
The air regulator can be used
to adjust torque to the
approximate tightness of
a known fastener.
Forward/Reverse
Lever
Air
Regulator
To set the tool to desired
torque, select a nut or screw
of known tightness of the same
size, thread pitch and thread
condition as those on the job.
Turn air regulator to low
position, apply wrench to nut
and gradually increase power
(turn regulator to admit more
air) until nut moves slightly in
the direction it was originally
set. The tool is now set to
duplicate that tightness – note
regulator setting for future
use. When tightening nuts not
requiring critical torque values,
run nut up flush and then
tighten an additional
one-quarter to one-half turn
(slight additional turning is
necessary if gaskets are being
clamped). For additional power
needed on disassembly work,
PLEASE REVIEW ALL WARNING INSTRUCTIONS PRIOR TO OPERATION. SAVE THIS MANUAL FOR FUTURE REFERENCE.
6-1076
6-1076_Manual_062006.indd 5
turn regulator to its fully open
position. This impact wrench
is rated at 3/8" USS bolt size.
Rating must be down graded
for spring U bolts, tie bolts,
long cap screws, double depth
nuts, badly rusted conditions
and spring fasteners as they
absorb much of the impact
power. When possible, clamp
or wedge the bolt to prevent
springback.
Soak rusted nuts in penetrating
oil and break rust seal before
removing with impact wrench.
If nut does not start to move
in three to five seconds use a
larger size impact wrench. Do
not use impact wrench beyond
rated capacity as this will
drastically reduce tool life.
Air
The throttle lever on top of
Inlet
the tool is used to change the
rotation of the tool. When the
lever is pushed down to the
right, the tool is in a forward
or right hand rotation. When
the valve is pushed down to
the left, the rotation is reverse
or left hand.
NOTE: Actual torque on a
fastener is directly related
to joint hardness, tool speed,
condition of socket and the
time the tool is allowed to
impact.
Use the simplest possible
tool-to-socket hook up.
Every connection absorbs
energy and reduces power.
S
PECIFICATIONS
Max. Free Speed........ 10,000 RPM
Max Torque ................... 75 ft. lbs.
Working Torque .......10-60 ft. lbs.
Air Inlet .......................... 1/4" NPT
Min. Hose Size ................ 3/8" I.D.
Avg. Air Cons. ................. 2.2 CFM
Recom. Air
Pressure.............90 PSIG (6.2 BAR)
Weight ............................... 1.8 lbs.
Length........................................6"
Sound Level ....................97.3 dBA
5
6/21/06 8:36:53 AM