Craftsman 875191173 Owner’s Manual

Owner's Manual

Pneumatic 3/8"

RATCHET

Model No.

875.191173

Drive

ENC

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=co131

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

tool failure.

NOTE: THE AIR SUPPLY SHOULD BE CLEAN, DRYAND

PREFERABLY LUBRICATED. FOR BEST RESULTS

DRAIN THE MOISTURE FROM YOUR COMPRESSOR

DAILY.

Use Only Power Sockets & Accessories

Sockets and accessories used shall be of the power socket type. Always check sockets, retainers and

drives regularly for wear or damage and replace when

necessary.

, WARNIN ]

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.

FULLONE YEARWARRANTY 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 875.191173 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 head for work in close quarters.

Features

• Lever throttle for ease of operation.

• 1-1/8" Ratchet head height (without socket) for use in close-quarter applications.

• Front exhaust directs air away from operator.

Specifications

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

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

Ultimate torque ......................................................... 45 ft. Ibs.

Weight ............................................................................. 21/2Ibs.

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

Average air consumption .......................................... 3.8 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 tool for service, make sure the air line is shut- off at the compressor. This will prevent the tool from operating if the throttle is accidently engaged.

Installation (See figure 1)

This tool is designed to operate at 90 psi. Lower pres- sure (below 90 psi) will reduce performance of the tool while higher air pressure (over 90 psi) raises the perfor- mance of the tool beyond its rated capacity and could cause serious damage to tool and user.

Always use clean dry air. Excessive moisture and dirt will greatly reduce the life of any air motor. We recommend the installation of an in-line filter-regulator-lubricator as close to the tool 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.

_. Morethan1/100slope

_BFranchne 2tmes__-r'_St_ _-__er Mainline=3times

_f ...... = • / P Reaulator Toolinlet/hosesize

II Iool,n,el:,noses,ze _,_c-Jtor ",_

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_Auto Drain 111,....7Air Tool ............................:

_ Valve Air Compressor

Figure 1

Air Hose Hook Up

WARNING: DISCONNECTTOOL FROM AIR SUPPLY

BEFORE SERVICING OR CHANGING SOCKETS. 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 loosen-

ing of fasteners should be done manually with ratchet used as a hand tool. Fasteners may then be run on and

off with relative ease.

Keep socket firmly against work surface when running the

ratchet to avoid dislodging the socket from the anvil.

Excessive torque leverage above tool specifications will

result in premature gear wear.

Air Inlet

Figure 2

Lubrication An in-line filter-regulator-lubricator (fig 1) is recommended

as it increases tool life and keeps the tool in sustained operation. The in-line lubricator should be regularly

checked and filled with air tool 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 2). The tool should be run for

approximately 30 seconds to ensure oil has been evenly distributed throughout the tool. 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. 2 for location/air inlet).

Sears CRAFTSMAN Model 875.191173

Pneumatic 3/8" Drive Ratchet Wrench

Exploded View and Parts List

Ref,

1 2 3

4 5 6

7 8 9

19 20

21 22

Part No.

985001 985002-01

985003 9150070 9106464

9106465 9106365

9106467 946011 927503 985011

9106469 9106470 9106471

9106472 9106473 9106686

9106476 9106477 985020

9106680 915012-02 9145024

Description

Housing

Air Inlet Bushing

Washer O-Ring

Valve Stem Valve Spring

O-Ring Valve Screw Throttle Lever Pin

Valve Bushing Throttle Lever

Ball Bearing Rear End Plate

Rotor Blade Rotor

Spring Pin Cylinder

Front End Plate Ball Bearing

Exhaust Deflector Bearing Cap

Internal Gear Clamp Nut

Q'ty

Ref. Part No. Description

1 1 1

1 1

24 9150140 Planet Gear 25 9106482 Idle Gear Seat

26 9106481 Needle Roller 27 985047 Handle Grip 28 9106484 Anvil Bushing

29 9106485 Needle Bearing 30 915038 Reverse Switch

31 915042 Washer 32 9150190 Ratchet Housing 33 9150180 Ratchet Anvil 34 9106491 Spring

35 9106490 Locking Pin 36 9150360 Ratchet Pawl 37 9106500 Retainer Ring

38 9150320 Thrust Washer 39 9150370 Pin 40 9106497 Steel Ball

41 9106496 Spring 42 9106486 Crank Shaft 43 9106698 Drive Bushing

44 9115023 Ratchet Yoke 45 9150430 Steel Ball 46 9150440 Spring

Q'ty

1 1

1 1 1

2 2

1 1

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