Craftsman 950239 2 Ton Capacity Users Manual 50239 (G620) 2007.pmd

50136 00950239e

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Operators Manual

•Safety

•Assembly

•Operation

•Maintenance

•Parts

FLOOR JACK

Model 950239 - 2 Ton Capacity

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

Visit our Craftsman website: www.sears.com/craftsman

Printed in China

BEFORE using this product, read this manual

and follow all its Safety and Operating

instructions. Failure to do so may result in

personal injury and/or property damage.

!

U.S. Patent:

5,755,099, 5,946,912, 6,199,379B1, 6,848,673B1

TABLE OF CONTENTS

Warranty .....P. 2

Save these instructions .....P. 2

Safety instructions .....P. 3

Assembly .....P. 4

Operation .....P. 5 & P. 6

Maintenance .....P. 7

Troubleshooting .....P. 8

Parts .....P. 8

Service .....Back cover

WARRANTY

CRAFTSMAN ONE YEAR FULL WARRANTY

If this Craftsman product fails due to a defect in material or workmanship 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.

This warranty applies for only 90 days from the date of purchase if this product is ever used

for commercial or rental purposes.

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

SAVE THESE INSTRUCTIONS

For your safety, read, understand, and follow the information provided with and on this jack.

•The owner and operator of this equipment shall have an understanding of this jack and safe

operating procedures before attempting to use. The owner and operator shall be aware that

use and repair of this product may require special skills and knowledge. Instructions and

safety information shall be conveyed in the operators native language before use of this

product is authorized. If any doubt exists as to the safe and proper use of this jack, remove

from service immediately.

•Inspect before each use. Do not use if broken, bent, cracked, or damaged parts (including

labels) are noted. Any jack that appears damaged in any way, operates abnormally or is

missing parts, shall be removed from service immediately.

•If the jack has been or suspected to have been subjected to a shock load (a load dropped

suddenly, unexpectedly upon it), immediately discontinue use until jack has been checked

by a Sears or other qualified service center. It is recommended that an annual inspection

be done by qualified personnel.

• Labels and Operators Manual are available from Sears (see PARTS section on page 8).

2

SAFETY INSTRUCTIONS

3

To avoid crushing and related injuries:

•NEVER work on, under or around a load

supported only by a jack.

•ALWAYS use appropriately rated jack

stands.

WARNING

!

•Leer, comprender, y seguir las

instrucciónes antes de utilizar el aparato.

•El manual de instrucciónes y la

información de seguridad deben estar

comunicado en lengua del operador

antes del uso.

•No seguir estas indicaciónes puede

causar daños personales o materiales.

ADVERTENCIA

!

•Study, understand, and follow all

instructions provided with and on this

device before use.

•Do not exceed rated capacity.

•Use only on hard, level surfaces.

•Lifting device only.

•Immediately after lifting, support the

vehicle with appropriately rated jack

stands.

•Do not move or dolly the vehicle while

on the jack.

•Failure to heed these markings may

result in personal injury and/or property

damage.

WARNING

!

! SAFETY MESSAGE !

Be sure all tools and personnel are clear

before lowering load. No alterations shall

be made to this device. Only attachments

and/or adapters supplied by the

manufacturer shall be used. Lift only on

areas of the vehicle as specified by the

vehicle manufacturer.

NOTE: Jack stands are rated per pair

unless otherwise noted.

Use 1 matched pair per vehicle only.

ASSEMBLY

TO ASSEMBLE THE TWO PIECE

HANDLE

1. Locate the Spring Pin on bottom end of

Upper Handle and the Fixing Hole on the

top end of Lower Handle (See Fig. 1).

2. Align the Spring Pin with the Fixing Hole.

Connect the two handle pieces together by

pressing the Spring Pin and insert until the

Spring Pin is locked in the Fixing Hole.

Upper

Handle

Spring Knob

Handle

Socket

Assembled

Handle

Lower

Handle

Fixing

Hole

FIG. 1 FIG. 2

Spring

Pin

TO ASSEMBLE THE HANDLE INTO

THE SOCKET

1. Pull out and hold the Spring Knob (see

Fig. 2).

2. Insert the assembled handle into the

Socket, until it is firmly seated.

3. Release the Spring Knob, the handle is

then fixed in position.

4

OPERATION

FIG. 3

KNOW YOUR JACK

Compare Fig. 3 illustration with your jack

BEFORE operation to become familiar with

the location of various jack components.

Jack Handle

Handle

Socket

Rear

Handle

Release Valve

(inside Handle Socket,

engage with Jack Handle)

Rear Caster

Side Handle

Saddle

Saddle Pad

Lifting Arm

Magnetic Tool Tray

(remove to access

Oil Filler Screw)

Oil Filler Screw

(located beneath

Tool Tray)

SPECIFICATIONS

Rated Capacity: 2 Ton/4000 Lb

Jack Dimensions: 27-3/4” x 12-1/8” x 6-1/4”

Lifting Range: 3-3/4” ~ 18-1/2” (Approx.)

(95mm - 470mm)

Oil Capacity: 150 c.c.

Net Weight: 42.5 lbs. (Approx.)

5

Front Roller

BEFORE USE

•Read the operator's manual completely

and familiarize yourself thoroughly with the

product, its components and recognize the

hazards associated with its use.

•Occasionally during shipment and/or

handling air can get trapped in the system,

which can interfere with the jacks lifting

performance.

•It is recommended to cycle the jack a few

times without applying load:

•Close release valve by turning the jack

handle clockwise until tight.

•Pump the handle until the jack saddle

reaches its maximum height.

•Open release valve by turning jack handle

counterclockwise, but no more than 1/2

full turn. Allow the saddle to reach its

lowest position.

•Repeat the above procedure a few times.

•To release air from the hydraulic system:

•Open the release valve by turning the jack

handle counterclockwise, but never by

more than 1/2 full turn.

•Remove the oil filler screw from the

cylinder. (see Fig. 4)

•Rapidly pump jack handle through several

full strokes.

•Reinstall the oil filler screw into the

cylinder again and jack is now ready to

use.

OPERATION

OPERATING PRINCIPLES

•With release valve closed, an upward

stroke of the jack handle draws oil from the

reservoir tank into the plunger cavity.

Hydraulic pressure holds the valve closed,

which keeps the oil in the plunger cavity.

•A downward stroke of the jack handle

releases oil into the cylinder, which forces

the ram out. This raises the saddle. (NOTE:

To avoid damage to the cylinder if the load

exceeds the rated capacity of the jack, oil

is automatically released back into the

reservoir through the safety overload

valve.)

•When the ram reaches maximum

extension, oil is bypassed back into the

reservoir to prevent an over-extended ram

stroke and possible damage to the jack.

•Opening the release valve allows oil to flow

back into the reservoir. This releases

hydraulic pressure on the ram, which

results in lowering the saddle.

HOW TO USE YOUR JACK

RAISING THE JACK

•Chock the vehicle wheels with appropriate

devices to prevent vehicle from moving and

to ensure lifting stability.

•Close the release valve by turning the jack

handle clockwise until tight. (see Fig. 3)

•Refer to the vehicle manufacturer’s owner’s

manual to locate approved lifting points on

the vehicle. Position jack so that the saddle

(see Fig. 3) is centered under the load at

an appropriate lift point.

•Pump jack handle until saddle ALMOST

contacts the vehicle. Check to see that the

saddle is centered and will contact the load

lifting point firmly.

•Continue to pump the jack handle to lift the

vehicle to the desired height. After lifting,

immediately support the load with

appropriately rated jack stands BEFORE

working on the vehicle.

Rated capacity of jack stands is per

pair, it is NOT the sum of individual

capacities unless specifically noted to the

contrary by the jack stand manufacturer.

Do Not exceed rated capacity. Ensure that

the vehicle support points are fully captured

between the outer lugs of both jack stands.

Use a matched pair of jack stands per

vehicle to support 1 end only. Use 1 pair

per vehicle only. Failure to do so may result

in sudden loss of load, which may cause

personal injury and/or property damage.

LOWERING THE JACK

To avoid crushing injuries and property

damage: Keep hands and feet clear of work

area when lowering load.

•Raise load high enough to clear the jack

stands, then carefully remove jack stands

(always used in pairs).

•SLOWLY open the release valve by turning

the handle counterclockwise, but never

more than 1/2 full turn. If the load fails to

lower:

a. Use another jack to raise the vehicle

high enough to reinstall jack stands.

b. Remove the affected jack and then the

stands.

c. Using the other jack, lower the load by

turning the operating handle counter-

clockwise, but no more than 1/2 full turn.

•After removing jack from under the load,

push saddle down to reduce ram exposure

to rust and contamination.

6

!

!

MAINTAINING OIL LEVEL

Important: When adding or replacing oil,

ALWAYS use a good grade Hydraulic Jack

oil. DO NOT use Hydraulic Brake Fluid,

Alcohol, Glycerine, Detergent, Motor Oil or

dirty oil. Use of an improper fluid can cause

serious internal damage to your jack. We

recommend Mobil DTE13M or equivalent.

ADDING OIL

•Position the jack on level ground and fully

lower the saddle. (Ram will be all the way

in). Remove oil filler screw located under

tool tray (see Fig. 3 & 4).

•Oil should be filled to the level of about

3/16” above the inner cylinder as seen from

the oil filler hole. If low, add oil as needed.

•Re-install oil filler screw and tool tray. The

jack is now ready to use.

LUBRICATION

•Add lubricating oil to all moving parts as

needed.

PREVENTING RUST

•Check ram and pump plunger (see Fig. 4)

every few months for any signs of rust or

corrosion. Clean as needed by wiping with

an oily cloth.

•When not in use, ALWAYS store jack with

saddle lowered all the way down.

ANNUAL INSPECTION

To ensure that it is in optimum condition,

annual inspection of the jack at a Sears

Service Center is recommended.

REPLACING OIL

•To drain oil, remove tool tray and oil filler

screw and open release valve. Turn jack

over and drain old oil out through the oil

filler hole and into a suitable container.

•Refill with new oil through the oil filler hole.

DO NOT allow dirt or other foreign material

to enter the hydraulic system when filling.

•After refilling, remove any air from the

hydraulic system by opening the release

valve and rapidly pumping the jack handle

several times.

•Re-install oil filler screw and tool tray and

the jack is ready to use.

FIG. 4

7

MAINTENANCE

Release Valve

Oil Filler Hole

Ram all the way in

Plunger

Oil Filler Screw

Cylinder

Proper Oil Level

O-ring

TROUBLESHOOTING

PROBLEM-SOLVING HINTS

FIG. 5

8

Symptom Possible Causes Corrective Action

Jack does not lift load

Jack bleeds off

(starts to lower) after lift

Jack does not lower after

unloading

Poor lift performance

•Release valve not tightly closed

•Overloaded - too much weight on jack

• Release valve not tightly closed

•Too much weight on jack

• Hydraulic unit malfunction

•Oil reservoir overfilled

•Linkages binding

•Ensure release valve is tightly closed

•Reduce weight on jack

•Ensure release valve is tightly closed

•Reduce weight on jack

•Replace power unit assembly

•Drain fluid to proper level

•Clean and lubricate moving parts

•Ensure proper fluid level

•With ram fully retracted, open release

valve, pump handle several times to

expel trapped air

•Ensure proper fluid level

Does not lift to full

extension

•Fluid level low

•Fluid level low

•Air trapped in system

PARTS

MODEL NUMBER: 50239

The Model Number and Serial Number are found on the lifting arm and handle socket

respectively. Always mention the Model Number and Serial Number when requesting service

or repair parts for your jack.

PARTS ARE ONLY AVAILABLE IN ASSEMBLIES (except Saddle)

Key Description

1Saddle

2Power Unit Assembly

3Handle Assembly

4Front Roller Assembly

5Handle Socket

6Rear Caster Assembly

7Oil Filler Screw

—Operators Manual

—Warning Label

1

7

2

3

5

6

4

For after sale support and assistance:

Call 8:00 AM - 4:45 PM CST., Monday - Friday 1-888-332-6419

Get it fixed, at your home or ours!

© Sears Brands, LLC

® Registered Trademark / TM Trademark / SM Service Mark of Sears Brands, LLC

® Marca Registrada / TM Marca de Fábrica / SM Marca de Servicio de Sears Brands, LLC

MC Marque de commerce / MD Marque déposée de Sears Brands, LLC

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For repair of carry-in items like vacuums, lawn equipment,

and electronics, call or go on-line for the location of your nearest

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1-800-488-1222 Call anytime, day or night (U.S.A. only)

www.sears.com

To purchase a protection agreement (U.S.A.)

or maintenance agreement (Canada) on a product serviced by Sears:

1-800-827-6665 (U.S.A.) 1-800-361-6665 (Canada)

Para pedir servicio de reparación

a domicilio, y para ordenar piezas:

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(1-888-784-6427)

Au Canada pour service en français:

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Call anytime, day or night

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