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Craftsman 875.199800 Owner's Manual page 4

3/8-in. butterfly impact wrench
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Owner's
Manual
Model
No. 875.199800
Owner's
Manual
Model
No. 875.199800
Air Tool Hook Up
Before the tool is connected to the air
supply, clear the air hose of accumulated
dust and moisture by running air freely
through the air hose for 5-10 seconds.
Air Hoses for your Air Tools
Figure 1 Illustrates a recommended
air
hose hook up.
A 3/8 inch ID air hose is required up to a
length of 25 feet. A 3/8 inch ID hose
longer than 25 feet will cause a pressure
drop and may impede performance.
If
more length is required, a ½ inch ID air
hose is recommended.
Be sure all hoses
and fittings are the correct size and
correctly secured before using the tool.
Never carry a tool by the hose or pull the
hose to move the tool or a compressor.
Keep hoses away from heat, oil and sharp
edges. Replace any hose that is damaged,
weak or worn.
Small (home) shop hard piping:
A piping diagram for a typical home shop
is shown.
Some helpful tips are:
Always use hoses and pipes rated for
higher pressure
than your system will
encounter.
Never use PVC pipes for
compressed
air piping systems as
explosion
and serious
injury may
result.
The connection
from the compressor
to the initial take-off hard pipe must
be a flexible hose in order to isolate
movement
of the compressor.
Route the initial take-off line (pipe) as
straight up the shop wall and as high
as possible.
This will help minimize
water leaving the compressor
and
traveling
through system
Slope the main lines down at least
3/4 inch per 10 feet of pipe away
from air compressor;
this will draw
the condensate
with the flow of air
and away from the compressor.
Place the first drop as far from the
compressor
as the size of your shop
will allow (50 feet is optimal,
although
unrealistic
for a small shop).
The
further the drop, the more that
condensation
can occur, and the
drier the air will be when it reaches
the water separator.
In order to reduce the amount of
water and contaminants
that get into
the water separator,
install the take-
off line on the top of the main air
supply line for each air drop.
A Drain line should be placed at the
end of the main line for condensate
drainage.
Drain valves should be placed at the
end of branch lines and the drain
line, and drained daily.
This tool features a regulator valve. Rotate
regulator
until desired output is achieved.
The setting (H) and (L) on the regulator
are only for reference
and do not denote a
specific power output. Turn regulator to
position with (L) being the least amount of
power and (H) being for the most amount
of power.
(See Figure 2)
Figure 2
Regulator
Valve
Once a bolt or fastener
is seated,
impacting
for longer than five (5)
seconds
will cause excessive
wear and
possible
damage
to the impacting
mechanism.
If it takes longer than five
seconds
to tighten
or loosen your bolt
or fastener,
we recommend
the use of a
larger size impact
wrench.
ENG-6
ENG-7

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