Napa 6-794A, Instruction Manual

Page: 3 / 16

6-794A Rev. 05/07/07
water in the air line will cause
damage to the tool. Drain the
air tank daily. Clean the air inlet
filter screen at least per week.
The air inlet used for
connecting air supply, has
standard 1/" NPT American
Thread. Line pressure should
be increased to compensate
for unusually long air hoses
(over 5 feet). Minimum hose
diameter should be 1/" I.D.
Fittings should have the same
inside dimensions and should
be tightly secured.
Nipple
Leader Hose
Whip Hose
Nipple
Filter
Air Supply
Regulator
Quick Coupler
Oiler
Drain Daily
Do Not Install
Quick Coupling
Here
AIR SUPPLY
Lubricate the air motor daily
with NAPA air tool oil. If no
air line oiler is used, run 1/ oz.
of oil through the tool. The oil
can be squirted into the tool
air inlet or into the hose at the
nearest connection to
the air supply, then run the
tool. The oil plug is only for
adding multi-purpose grease
LUBRICATION
Tools of this class operate on
a wide range of air pressures.
We recommend that air
pressure measures 90 PSI at
the air inlet while in use. Low
pressure (less than 90 psig 6.
bar) reduces the speed and
performance of all air tools.
High pressure (over 115 psig 8.0
bar) exceeds the rated capacity
of the tool, which will shorten
tool life through faster wear
and could cause injury.
Always use clean, dry air.
Dust, corrosive fumes, and/or
please revieW all Warning insTrucTions prior To operaTion. save This Manual for fuTure reference.
OPERATION
This impact wrench is rated at
1" 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 fasten-
ers 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.
The reversing lever is used to
change the rotation of the tool.
When the valve is pushed to the
left, the tool is in a forward or
right hand rotation. When the
valve is pushed to the right, the
after repair or maintenance
of the impact mechanism.
Overfilling will cause a
reduction in the power of
the tool.
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.
Torque Range ..... 600-1,00ft./lbs.
Max. Torque.............. 1,460 ft./lbs.
Overall Length ......................19.7"
Net Wt. ...............................0 lbs.
Avg. Air Cons. .................. 15 CFM
Air Inlet .......................... 1/" NPT
Min. Hose Size ................1/" I.D.
Recom. Air
Pressure .90-115 PSIG (6.-8.0 bar)
Free Speed ....................4,000 rpm
Sound Level .....................100 dBA
S
pecificationS
Air Inlet
Forward/Reverse
Lever