Craftsman 875191192 Owner’s Manual
Owner's Manual
Pneumatic
AIR HAMMER
Model No.
875.191192
WARNING:
Before operating tool, read this
manual and follow all
Safety Recommendations and
Operating Instructions.
Safety
, Warranty
Features & Operation
Maintenance
EspaSol
Distributed by Sears,
www.Sears.com
Roebuck and Co.,
Hoffman
Estates, IL 60179
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.
90 PSI Maximum
This tool is designed to operate at an air 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
toot failure.
NOTE: THEAIR SUPPLY SHOULD BE CLEAN, DRYAND
PREFERABLY LUBRICATED. FOR BEST RESULTS
DRAIN THE MOISTURE FROM YOUR COMPRESSOR
DAILY.
Use May Produce Flying Objects
Care should be taken when using any percussion tool.
Keep the point of the chisel in contact with the work
surface. Inspect all accessories carefully for damage
before use. Chisels and chisel retainers should be kept
in good condition and replaced as needed. Discard any
accessory that has been damaged to prevent anyone
from using it.
L WARN=N ]
Some dust created by power sanding, sawing, grinding,
drilling and other construction activities contains chemi-
cals 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, and
• 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 par-
ticles.
FULL ONE YEAR WARRANTY ON
CRAFTSMAN AIR-DRIVE TOOLS
If this Craftsman tool fails to give complete satisfaction
within one year from the date of purchase, RETURN IT
TO THE NEAREST SEARS STORE IN THE UNITED
STATES, and Sears will repair or replace it free of charge.
If this Craftsman tool is used for commercial or rental
purposes, this warranty applies for only 90 days from the
date of purchase. This warranty gives you specific legal
rights, and you may also have other rights which vary
from state to state.
Distributed by Sears, Roebuck and Co., Dept. 817WA,
Hoffman Estates, IL 60179.
The Craftsman Model 875.191192 Air Hammer is
designed for chipping, trimming, riveting, cutting,
piercing and peening.
Features
• Uses standard .401 inch shank chisels.
• Alloy steel barrel and heat-treated piston for long life.
• Produces 4,000 powerful blows per minute with a
1-5/8" stroke.
Specifications
_roke Length ....................................................................... 1.7"
IBore Diameter ..................................................................... 3/4"
Blows per minute .................................................... 4 500 BPM
Weight ............................................................................. 2.5 tbs.
Overall length....................................................................... 6.1"
Average airconsumption .............................................. 4 CFM
Recommended hose size ........................................... 3/8" I.D.
Air inlet.......................................................................... 1/4" NPT
Maximum Air Pressure .................................................. 90 PSI
Pre-Operation
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. Before
removing a toot for service, make sure the air line is shut-
off at the compressor. This will prevent the tool from
operating if the throttle is accidentty engaged.
Installation (See figure 1)
This toot is designed to operate at 90 psi. Lower pres-
sure (below 90 psi) will reduce performance of the toot
while higher air pressure (over 90 psi) raises the perfor-
mance of the toot beyond its rated capacity and could
cause serious damage to tool and user.
Always use clean dry air. Excessive moisture and dirt wilt
greatly reduce the life of any air motor. We recommend
the installation of an in-line filter-regulator-lubricator as
close to the toot as possible.
A 3/8" air hose is required up to a length of 8 ft. If more
length is required a 1/2" air hose should be used at the
compressor. Attach a 3/8" whip hose for the remaining
4 - 8 ft. for flexibility. Be sure all hoses and fittings are the
correct size and tightly secured before using air tool.
::2]
Branch line = 2times
Tool inlet/hose size
_Auto Drain
Valve
Auto Drain
Va Ive
More than 1/100 slope
4_
Stop
Valve
Filter
Regulator
Lubricator
Figure1
Air HoseHook Up
Main line = 3 times
Tool inlet/hose size
Air Tool
USING QUICK CHANGE RETAINER
1 Disconnect air supply and remove all accesso
ries.
Thread quick change chisel retainer onto end of
barrel.
While pushing end of spring to side of the toot,
insert a standard .401" taper shank chisel into
barrel and allow spring tension to rest against
chisel. Make sure chisel is between barrel and
retaining part of spring.
Remove chisel by pushing spring to si(
and pull chisel out of barrel.
Always hold chisel to work surface before
operating tool.
tool
Lubrication
An in-line filter-regulator-lubricator (fig 1) is recommended
as it increases toot life and keeps the toot in sustained
operation. The in-line lubricator should be regularly
checked and filled with air toot oil. Proper adjustment of
the in-line lubricator is performed by placing a sheet of
paper next to the tools exhaust ports and holding the
throttle open approximately 30 seconds. The lubricator is
properly set when a light stain of oil collects on the paper.
Excessive amounts of oil should be avoided.
In the event that it becomes necessary to store the tool for
an extended period of time (overnight, weekend, etc.), it
should receive a generous amount of lubrication through
the air inlet (fig 3). The tool should be run for
approximately 30 seconds to ensure oil has been evenly
distributed throughout the toot. The tool should be stored
in a clean and dry environment.
Recommended lubricants: Use air tool oil or any other
high grade turbine oil containing moisture absorbent, rust
inhibitors, metal wetting agents and an EP (extreme
pressure) additive. (See Fig. 3 for location/air inlet).
Never operate hammer without a
I_CAUTION chisel installed and placed against the
work surface. Doing so may result in
personal injury or damage to the tool.
Figure 2-Tool Diagram
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