Owner's Manual
Nlodei No. 875.198650
1/2-in. Composite impact Wrench
Unpacking
When unpacking this product, carefully inspect for any damage that may have occurred
during transit, Make sure any loose fittings, bolts, etc, are tightened before putting this
product into service,
WARNING: Please read and save these safety and operating instructions. Read carefully
before attempting to assemble, install, operate or maintain the product described.
Protect yourself and others by observing all safety information. Failure to comply with
instructions could result in personal injury and/or property damage! Retain instructions
for future reference.
Sears, Roebuck and Co,, Hoffman Estates, IL 60179
www.CRAFTSMAN.com
102109
Owner's Manual Model No. 875.198650 Owner's Manual Model No. 875.198650
90 PSI Maximum
This tool is designed to operate at an air
Features & Benefits
_, Specifications
Product Warranty
_, Compressor Requirements
Important Safety Instructions
Installation and Operation
Maintenance
_, Exploded View Drawing & Parts List
_, Troubleshooting
The Craftsman Model 875.198650 1/2-in.
composite impact wrench features a hard
hitting, twin hammer design that
produces 725 ft. Ibs. of maximum torque.
Exceptionally fast 1,100 impacts per
minute and 8,000 RPM free speed gets
the job done quickly. High impact
resistant composite housing and
magnesium hammer case weighs only
4.25 Ibs.
Drive size ........................................... 1/2"
Free speed (No Load) .......... 8,000 RPM
Maximum torque ..................... 725 ft. Ibs.
Weight .......................................... 4.251bs.
Overall length ............................. 5-7/8 in.
Average air consumption ........ 5.0 SCFM
Recommended hose size .......... 3/8"1.D.
Air inlet ....................................... 1/4" NPT
Maximum Air Pressure .................. 90 PSI
ONE YEAR FULL WARRANTY ON
CRAFTSMAN TOOL
If this Craftsman tool fails to give
complete satisfaction within one year
from the date of purchase, RETURN IT
TO ANY SEARS STORE OR PARTS &
REPAIR CENTER OR OTHER
CRAFTSMAN OUTLET IN THE UNITED
STATES FOR FREE REPAIR (or
replacement if repair proves impossible).
If this Craftsman tool is ever used for
commercial or rental purposes, this
warranty applies for only 90 days from the
date of purchase.
This warranty does not include
expendable parts, such as lamps,
batteries, bits or blades.
This warranty gives you specific legal
rights, and you may also have other rights
which vary from state to state.
Sears, Roebuck and Co.,
Hoffman Estates, IL 60179
Light Use - 26 Gallon
Typical Use - 33 Gallon
Heavy Use - 60 Gallon Professional
Read Operating Instructions
Please become familiar with all the
instructions and warnings before
operating any pneumatic tool.
Always Wear Approved Eye Protection
Impact resistant eye protection should
meet or exceed the standards set forth in
ANSI Z87.1, Occupational and
Educational Eye and Face Protection.
Look for marking Z87.1 on your eye
protection to ensure that it is an approved
style.
Hearing Protection is Recommended
Hearing protection should be used when
the noise level exposure equals or
exceeds an 8 hour time-weighted average
sound level of 85dBA. Process noise,
reflective surfaces, other tools being
operated nearby, all add to the noise level
in a given work area. If you are unable to
determine your noise level exposure, we
recommend the use of hearing protection.
Avoid Prolonged Exposure to Vibration
Pneumatic tools can vibrate during use.
Prolonged exposure to vibration or very
repetitive hand and arm movements can
cause injury. Discontinue the use of any
tool if you experience tingling, numbness,
discomfort or pain in your hands or arms.
You should consult your physician before
resuming use of tool.
pressure of 90 pounds per square inch
gauge pressure (90 PSi) maximum, at the
tool. Use of higher air pressure can, and
may cause injury. Also, the use of higher
air pressure places the internal
components under loads and stresses
they were not designed for, causing
premature tool failure.
California Prop 65
Some dust created by power sanding,
sawing, grinding, drilling and other
construction activities contains
chemicals known to cause cancer, birth
defects or other reproductive harm.
Some examples of these chemicals are:
Lead from lead based paint, crystalline
silica from bricks and cement and other
masonry products, arsenic and
chromium from chemically-treated
lumber,
Your risk from those exposures varies,
depending on how often you do this
type of work. To reduce your exposure
to these chemicals: work in a well
ventilated area, and work with approved
safety equipment, such as dust masks
that are specifically designed to filter
out microscopic particles.
ENG-2 ENG-3
Owner's Manual Model No. 875.198650 Owner's Manual Model No. 875.198650
Disconnect the air tool from air supply
before changing tools or attachments,
servicing and during non-operation,
Do not wear loose fitting clothing,
scarves, or neck ties in work area, Loose
clothing may become caught in moving
parts and result in serious personal injury,
Do not wear jewelry when operating
any tool, Jewelry may become caught in
moving parts and result in serious
personal injury,
Do not depress trigger when connecting
the air supply hose,
Never trigger the tool when not applied
to a work object,
Attachments must be securely
attached, Loose attachments can cause
serious injury,
Protect air lines from damage or
puncture.
Never point an air tool at oneself or any
other person, Serious injury could occur,
Check air hoses for weak or worn
conditions before each use, Make sure all
connections are secure,
Release all pressure from the system
before attempting to install, service,
relocate or perform any maintenance.
Keep all nuts, bolts and screws tight
and ensure equipment is in safe working
condition,
Use attachments designed for use with
air powered tool. Always examine
accessories before mounting for chips,
cracks, or signs of damage.
Never use mounted points or other
accessories that have been dropped or
exposed to water, solvent or extreme
temperature changes, it is a good practice
to operate the tool in a protected
enclosure for one minute after mounting
any accessory.
Always use accessories with an RPM
rating that meets or exceeds the tool
RPM rating,
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,
Inhalation hazard: Abrasive tools, such
as grinders, sanders and cut-off tools
generate dust and abrasive materials
which can be harmful to human lungs
and respiratory system. Always wear
MSHA/NIOSH approved, properly fitting
face mask or respirator when using
such tools,
Some materials such as adhesives and
tar, contain chemicals whose vapors
could cause serious injury with
prolonged exposure. Always work in a
clean, dry, well ventilated area.
Tools which contain moving elements,
or drive other moving tools, such as
grinding wheels, sockets, sanding
discs, etc., can become entangled in
hair, clothing, jewelry and other loose
objects, resulting in severe injury.
Never wear loose fitting apparel which
contains loose straps or ties, that could
become tangled in moving parts of the
tool Remove any jewelry, watches, etc,,
which might become caught by the
tool. Keep hands away from moving
parts, Tie up or cover long hair.
Improperly maintained tools and
accessories can cause serious injury.
Maintain the tool with care. A properly
maintained tool, with sharp cutting
edges, reduces the risk of binding and
is easier to control,
There is a risk of bursting if the tool is
damaged. Check for misallgnment or
binding of moving parts, breakage of
parts and any other condition that
affects the tool's operation, if damaged,
have the tool serviced before using,
Tools which cut, shear, drill, staple,
punch, chisel, etc. are capable of
causing serious injury. Keep the
working part of the tool away from
hands and body.
After an air tool has been lubricated, oil
will discharge through the exhaust port
during the first few seconds of
operation. Thus, the exhaust port must
be covered with a towel before applying
air pressure,
Use Only Impact Sockets & Accessories
Only use sockets designated "FOR USE
WITH IMPACT WRENCHES. "'Hand tool
sockets can break, creating a hazard
from flying pieces. Always check
sockets, retainers and drives regularly
for wear or damage and replace when
necessary.
ENG-4 ENG-5
Owner's Manual Model No. 875.198650 Owner's Manual Model No. 875.198650
Air Tool Hook Up
Never carry a tool by the hose or pull the
hose to move the tool or a compressor.
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,
ENG-6 ENG-7
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 power regulator valve
(fig. 2), Rotate regulator until desired
output is achieved, The settings on the
regulator are only for reference and do not
denote a specific power output, Turn
regulator to a position with the sinlge
circle being the least amount of power and
the three circles being the most amount of
power,
Figure 2
Regulator Valve
Forward/Reverse Lever
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, ff it takes longer than five
seconds to tighten or loosen your bolt
or fastener, we recommend the use of a
larger size impact wrench,