Craftsman 235.199140, 235.199150 Owner's Manual

Owner ’s Manual

1/2¨ Heavy–Duty

PISTOL GRIP IMPACT WRENCHES

Model No.

235.199140 and 235.199150

W ARNING:

Before using this Impact Wrench
read this manual and follow all its
Safety and Operating Instructions.

Sears, Roebuck and Co., Hoffman Estates, IL 60179

Owner’s Manual P7439 (1–00) Printed in USA

S Safety
S Operation
S Maintenance
S Parts List
S Español

2

TABLE OF CONTENTS PAGE

Two Year Warranty 2
Safety 3–5

Warning Labels
Notice, Warning and Caution
Placing Tool In Service
Using the Tool

Operation 6–7

Air Supply and Connections
Using the Power Management System
Specifications

Maintenance 8

Lubrication

Parts List 9–11

Exploded Drawing
Parts for Ordering

Español 12–22

FULL TWO YEAR WARRANTY

If this product fails due to a defect in material or workmanship within
two years from the date of purchase, Sears will at its option, repair or
replace it free of charge.

Return this product to a Sears Service Center for repair, or to place of
purchase for replacement.

This warranty gives you specific legal rights, and you may also have
other rights which vary from state to state.

Sears, Roebuck and Co., Dept. 817WA, Hoffman Estates, IL 60179

3

Always wear eye
protection when op­erating or perform­ing maintenance on
this tool.

Always wear hear­ing protection
when operating
this tool.

Always turn off the air supply
and disconnect the air supply
hose before installing, re­moving or adjusting any ac­cessory on this tool, or before
performing any maintenance
on this tool.

Air powered tools can vibrate
in use. Vibration, repetitive
motions or uncomfortable
positions may be harmful to
your hands and arms. Stop
using any tool if discomfort,
tingling feeling or pain occurs.
Seek medical advice before
resuming use.

Do not carry the
tool by the hose.

Do not use dam­aged, frayed or
deteriorated air
hoses and fittings.

Keep body stance
balanced and firm.
Do not overreach
when operating this
tool.

Operate at 90 psig
(6.2 bar/620 kPa)
Maximum air
pressure.

90 psig

(6.2bar/620kPa)

WARNING

WARNING

WARNING

WARNING

WARNING

WARNING

WARNING

WARNING

4

WARNING is used to indicate the presence of a hazard which

can cause severe personal injury or death if the warning is ignored.

CAUTION is used to indicate the presence of a hazard which will

or can cause minor personal injury or property damage if the cau­tion is ignored.

NOTICE is used to notify people of installation, operation or main-

tenance information which is important but not hazard related.

This Craftsman Impact Wrench is
designed for use in general auto­motive repair, tire service and
heavy duty fleet applications.

WARNING:

Important safety information en­closed.
Read this manual before operating
tool.
It is the responsibility of an em­ployer to place the information in
this manual into the hands of any­one who operates this device.
Failure to observe the following
warnings could result in injury.

PLACING TOOL IN SERVICE

• Always operate, inspect and
maintain this tool in accordance
with all regulations (local, state,
federal and country), that may
apply to hand–held/hand–oper­ated pneumatic tools.

• For safety, top performance,
and maximum durability of

parts, operate this tool at
90 psig (6.2 bar/620 kPa) maxi­mum air pressure at the inlet
with 3/8” (10 mm) inside diame­ter air supply hose.

• Always turn off the air supply
and disconnect the air supply
hose before installing, removing
or adjusting any accessory on
this tool, or before performing
any maintenance on this tool.

• Do not use damaged, frayed or
deteriorated air hoses and fit­tings.

• Be sure all hoses and fittings
are the correct size and are
tightly secured. See Figure 1 for
a typical piping arrangement.

• Always use clean, dry air at
90 psig maximum air pressure.
Dust, corrosive fumes and/or
excessive moisture can ruin the
motor of an air tool.

• Do not lubricate tools with flam­mable or volatile liquids such as
kerosene, diesel or jet fuel.

5

PLACING TOOL IN SERVICE
(continued)

• Do not remove any labels. Re­place any damaged label.

• The use of a hose whip is rec­ommended. A coupler con­nected directly to the air inlet in­creases tool bulk and de­creases tool maneuverability.

• For maximum performance, the
coupler on the wall should be
the next size larger than the
coupler used on the tool. The
coupler closest to the tool
should not be less than the
proper air supply hose size.

USING THE TOOL

• Always wear eye protection
when operating or performing
maintenance on this tool.

• Always wear hearing protection
when operating this tool.

• Keep hands, loose clothing and
long hair away from rotating
end of tool.

• Note the position of the revers­ing lever before operating the
tool so as to be aware of the
direction of rotation when oper­ating the throttle.

• Anticipate and be alert for sud­den changes in motion during
start–up and operation of any
power tool.

• Keep body stance balanced
and firm. Do not overreach
when operating this tool. High
reaction torques can occur at or
below the recommended air
pressure.

• Tool shaft may continue to ro­tate briefly after throttle is re­leased.

• Air powered tools can vibrate in
use. Vibration, repetitive mo­tions or uncomfortable positions
may be harmful to your hands
and arms. Stop using any tool if
discomfort, tingling feeling or
pain occurs. Seek medical ad­vice before resuming use.

• Use accessories recommended
by Craftsman.

• Use only impact sockets and
accessories. Do not use hand
(chrome) sockets or accesso­ries.

• Impact wrenches are not torque
wrenches. Connections requir­ing specific torque must be
checked with a torque meter af­ter fitting with an impact
wrench.

• This tool is not designed for
working in explosive atmo­spheres.

• This tool is not insulated against
electric shock.

NOTICE: The use of other than

genuine Craftsman replacement
parts may result in safety hazards,
decreased tool performance, in­creased maintenance, and may
invalidate all warranties.

Repairs should be made only by
authorized trained personnel.

6

Air Supply and Connections

Always use clean dry air. Dust,
corrosive fumes and/or excessive
moisture can ruin the motor of an
air tool. An air line filter can greatly

increase the life of an air tool. The
filter removes dust and moisture.
Be sure all hoses and fittings are
the correct size and are tightly se­cured. See Figure 1 for a typical
piping arrangement.

Figure 1

Main lines 3 times air tool inlet size.

To air system

To air tool

Lubricator

Filter

Regulator

Branch line 2 times air
tool inlet size

Drain regularly

Compressor

ADJUSTMENTS

Setting the Power Regulator

WARNING:

Impact wrenches are not torque
control devices. Fasteners with
specific torque requirements must
be checked with suitable torque
measuring devices after installa­tion with an impact wrench.
19914 and 19915 Impact
Wrenches incorporate a power
regulator into the reverse mecha­nism that allows the operator to
have either full power output in
one direction and reduced power
output in the other direction or full
power output in both directions. To
adjust the power, proceed as fol­lows:

For full power in both direc­tions, rotate the reverse valve

until the notch on each end of the
reverse valve aligns with the num­ber 5 on each side of the housing.
See Figure 2.

NOTICE: The numbers 0 thru 5

on the housing are only for refer­ence and DO NOT denote a spe­cific power output. Zero (0) desig­nates the lowest power output
while five (5) denotes the highest.

Figure 2

7

For reduced power in the for­ward direction and full power in
the reverse direction, push the

reverse valve inward on the right
side of the tool and rotate the re­verse valve until the notch on the
right side aligns with the desired
number on the right side. This pro­vides reduced power in forward
but full power in reverse when the
reverse valve is pushed in the op­posite direction. See Figure 3.

Figure 3

For reduced power in the re­verse direction and full power in
the forward direction, push the

reverse valve inward on the left
side of the tool and rotate the re­verse valve until the notch on the
left side aligns with the desired
number on the left side. This pro­vides full power in forward but re­duced power in reverse when the
reverse valve is pushed the oppo­site direction. See Figure 4.

Figure 4

SPECIFICATIONS

Model Type of

Handle

Drive Impacts

per min.

Recommended

Torque Range

Forward

ft-lb (Nm)

Reverse

ft-lb (Nm)

19914 pistol

grip

1/2¨ sq. 1,150 25–300

(34–407)

25–350

(34–475)

19915 pistol

grip

1/2” sq.

with

extended

anvil

1,150 25–300

(34–407)

25–350

(34–475)

8

LUBRICATION

Use Craftsman No. 18830
Pneumatic Tool Care Kit or a good
quality SAE 20 or 20W motor oil.

Craftsman 18830 Oil

Craftsman 18830 Grease

for routine external lubrica­tion of the impact mecha­nism through the Hammer
Case Grease Fitting.

Always use an air line lubricator
with these tools.

CAUTION: Do not mark any

nonmetallic surface on this tool
with customer identification codes.
Such actions could affect tool per­formance.