Craftsman 235.199140 Manuale utente

Owner’s Manual

1/2¨ Heavy–Duty

PISTOL GRIP IMPACT WRENCHES

Model No.

235.199140 and 235.199150

WARNING:

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

SSafety

SOperation

SMaintenance

SParts List

SEspañol

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

Always wear eye

protection when op-

erating or perform-

ing maintenance on

this tool.

Always wear hear-

ing protection

when operating

this tool.

Always turn off the air supply

and disconnect the air supply

hose before installing, re-

moving or adjusting any ac-

cessory 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 dam-

aged, 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 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 cau-

tion 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 auto-

motive repair, tire service and

heavy duty fleet applications.

WARNING:

Important safety information en-

closed.

Read this manual before operating

tool.

It is the responsibility of an em-

ployer to place the information in

this manual into the hands of any-

one 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–oper-

ated pneumatic tools.

•For safety, top performance,

and maximum durability of

parts, operate this tool at

90 psig (6.2 bar/620 kPa) maxi-

mum air pressure at the inlet

with 3/8” (10 mm) inside diame-

ter 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 fit-

tings.

•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 flam-

mable or volatile liquids such as

kerosene, diesel or jet fuel.

PLACING TOOL IN SERVICE

(continued)

•Do not remove any labels. Re-

place any damaged label.

•The use of a hose whip is rec-

ommended. A coupler con-

nected directly to the air inlet in-

creases tool bulk and de-

creases 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 revers-

ing lever before operating the

tool so as to be aware of the

direction of rotation when oper-

ating the throttle.

•Anticipate and be alert for sud-

den 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 ro-

tate briefly after throttle is re-

leased.

•Air powered tools can vibrate in

use. Vibration, repetitive mo-

tions or uncomfortable positions

may be harmful to your hands

and arms. Stop using any tool if

discomfort, tingling feeling or

pain occurs. Seek medical ad-

vice before resuming use.

•Use accessories recommended

by Craftsman.

•Use only impact sockets and

accessories. Do not use hand

(chrome) sockets or accesso-

ries.

•Impact wrenches are not torque

wrenches. Connections requir-

ing specific torque must be

checked with a torque meter af-

ter fitting with an impact

wrench.

•This tool is not designed for

working in explosive atmo-

spheres.

•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, in-

creased maintenance, and may

invalidate all warranties.

Repairs should be made only by

authorized trained personnel.

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 se-

cured. 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 installa-

tion with an impact wrench.

19914 and 19915 Impact

Wrenches incorporate a power

regulator into the reverse mecha-

nism 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 fol-

lows:

For full power in both direc-

tions, rotate the reverse valve

until the notch on each end of the

reverse valve aligns with the num-

ber 5 on each side of the housing.

See Figure 2.

NOTICE: The numbers 0 thru 5

on the housing are only for refer-

ence and DO NOT denote a spe-

cific power output. Zero (0) desig-

nates the lowest power output

while five (5) denotes the highest.

Figure 2

For reduced power in the for-

ward direction and full power in

the reverse direction, push the

reverse valve inward on the right

side of the tool and rotate the re-

verse valve until the notch on the

right side aligns with the desired

number on the right side. This pro-

vides reduced power in forward

but full power in reverse when the

reverse valve is pushed in the op-

posite direction. See Figure 3.

Figure 3

For reduced power in the re-

verse direction and full power in

the forward direction, push the

reverse valve inward on the left

side of the tool and rotate the re-

verse valve until the notch on the

left side aligns with the desired

number on the left side. This pro-

vides full power in forward but re-

duced power in reverse when the

reverse valve is pushed the oppo-

site 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)

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 lubrica-

tion of the impact mecha-

nism 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 per-

formance.

Figure 6

235.19914/19915

PART NUMBER PART NUMBER

Motor Housing Assembly 13 Exhaust Deflector . . . . . . . . . . . . 235–EU–23

for model 19914 . . . . . . . . . CR231XP–A40 14 Throttle Valve Spring . . . . . . . . . . 235–51

for model 19915 . . . . . . . . . CR231XP2–A40 15 Throttle Valve . . . . . . . . . . . . . . . . 235–50

1Motor Housing Trigger Assembly . . . . . . . . . . . . . 231H–A93

for model 19914 . . . . . . . . . CR231XP–B40 16 Trigger . . . . . . . . . . . . . . . . . . . 231H–93

for model 19915 . . . . . . . . . CR231XP2–B40 17 Throttle Rod . . . . . . . . . . . . . . 235–302

2Throttle Valve Seat . . . . . . . . . . . 235–303 18 Back Nameplate

3Warning Label for model 19914 . . . . . . . . . CR231XP–300

for model 19914 . . . . . . . . . CR231XP–99 for model 19915 . . . . . . . . . CR231XP2–300

for model 19915 . . . . . . . . . CR231XP2–99 19 Trigger Retainer . . . . . . . . . . . . . . . . 231H–656

3A Housing Label 21 End Plate Gasket . . . . . . . . . . . . . . . 231–283

for model 19914 . . . . . . . . . CR231XP–301 22 Rear Rotor Bearing Retainer . . . . . 402–118

for model 19915 . . . . . . . . . CR231XP2–301 23 Rear Rotor Bearing . . . . . . . . . . . . . 402–22

4Grease Fitting . . . . . . . . . . . . . . . . 130SR–188 24 Rear End Plate . . . . . . . . . . . . . . . . . 231–12

5Reverse Valve Bushing . . . . . . . . 231–A330 25 Rotor . . . . . . . . . . . . . . . . . . . . . . . . . 231–53

6Reverse Valve Bushing 26 Vane (set of 6 Vanes) (yellow) . . .. 2131–42A–6

Seal (2) . . . . . . . . . . . . . . . . . . PS3–67 27 Cylinder . . . . . . . . . . . . . . . . . . . . . . . 231XP–3

7Reverse Valve . . . . . . . . . . . . . . . 231–329A 28 Front End Plate . . . . . . . . . . . . . . . . 231–11

8Reverse Valve Detent Ball . . . . . AV1–255 29 Cylinder Dowel . . . . . . . . . . . . . . . . . 230–98

9Reverse Valve Detent Spring . . . 231–664 30 Front Rotor Bearing . . . . . . . . . . . . . 4U–97

10 Reverse Valve Knob . . . . . . . . . . 231–666 31 Motor Clamp Washer (2) . . . . . . . . . 227–207

11 Reverse Valve Knob Screw . . . . 231–665 32 Hammer Frame Rear Washer . . . . 231–706

12 Inlet Bushing . . . . . . . . . . . . . . . . . 235–565

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