Craftsman 875199330 Owner’s Manual

3/8-in. Ratchet Wrench

Owner's Manual
Model No. 875.199330

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 o807

www.CRAFTSMAN.com

Owner's Manual Model No. 875.199330 Owner's Manual Mode! No. 875.199330

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 875.199330 3/8"
Drive Ratchet Wrench is designed for

applications such as automotive repair,
general assembly, transmission teardown

and maintenance. Features include a lever
throttle for speed control and low profile

ratchet head height (without socket) for
use in close-quarter applications. 360°
swivel exhaust directs air away from

operator.

Drive size ........................................... 3/8"

Free speed (No Load) .............. 160 RPM

Max Torque ................................ 50 ft. Ibs.

Weight ........................................... 2.3 Ibs.

Overall length ..................................... 10"

Average air consumption ........ 4.0 SCFM

Recommended hose size .......... 3/8" I.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 OTHER CRAFTSMAN
OUTLET IN THE UNITED STATES FOR

FREE REPLACEMENT.

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 - 17 Gallon

Typical Use - 26 Gallon

Heavy Use - 33 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. 875.199330 Owner's Manual Mode! No. 875.199330

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.

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.

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.

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.

Always make sure that tool accessories
meet or exceed the tools reccomended

output.

improperly maintained tools and
accessories can cause serious injury.

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.

ENG-4 ENG-5

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.

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.

Disconnect tool from air supply before
servicing or changing sockets.

When tightening, do not torque down
the nuts or bolts with the ratchet as

typically done with a hand wrench. This

can damage the tool by breaking parts
in the ratchet mechanism.

Owner's Manual Model No. 875.199330 Owner's Manual Mode! No. 875.199330

be a flexible hose in order to isolate

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

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 ratchet is equipped with a lever
throttle which allows the operator to vary
the speed. Direction control is located on

the back of the ratchet head. Initial
tightening and loosening of fasteners

should be done manually with ratchet used
as a hand tool. Nuts may then be run on

and off with relative ease. Built-in air

regulator (Ref. No. 2) allows user to set

torque level to the job. (Fig. 2)

Keep socket firmly against work surface

when running the ratchet to avoid
dislodging the socket from the anvil.

Excessive torque leverage above the tool
specifications will result in premature gear
wear.

Speed Adjustment
The ratchet should never be used to

set the torque. Use a torque wrench to
set the torque.

When tightening, do not torque down

the nuts or bolts with the ratchet as

typically done with a hand wrench. This

can damage the tool by breaking parts

in the ratchet mechanism.