Craftsman Automobile Parts 50280 User Manual

Operators Manual  
HYDRAULIC BOTTLE JACK  
Model 950280 - 2 Ton Capacity  
Model 950282 - 6 Ton Capacity  
• Safety  
• Assembly  
• Operation  
• Maintenance  
• Parts  
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.  
Sears, Roebuck and Co., Hoffman Estates, IL 60179  
U.S. Patent: 5,946,912  
Printed in China  
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SAFETY INSTRUCTIONS  
!
WARNING  
Study, understand, and follow all instructions provided with and on this device before  
use.  
Do not exceed rated capacity.  
• This is a lifting device only.  
• After lifting, immediately transfer the load to appropriately rated vehicle stands.  
• Use only on hard, level surface.  
Lift only on areas of the vehicle as specified by the vehicle manufacturer.  
• No alterations shall be made to this device.  
• Only attachments and/or adapters supplied by the manufacturer shall be used.  
Failure to heed these markings may result in personal injury and/or property  
damage.  
! WARNING  
To avoid crushing and related injuries:  
Never work on, under, or around a load supported only by  
a hydraulic jack.  
Read, understand and follow all printed materials provided  
with and on this jack.  
Immediately support the lifted load with appropriately rated  
jack stands.  
Use ONLY on vehicles whose lift points are compatible with  
the saddle of this jack. Incompatibility may result in structural  
damage to the vehicle and/or jack.  
Chock each unlifted tire in both directions.  
Be alert and sober when servicing a vehicle! Never operate  
this equipment when under the influence of drugs or alcohol.  
DO NOT use this device to lift, level, lower, support, adjust  
or otherwise move a house, mobile home, travel trailer,  
camper, or building structure of any type, size, or  
configuration.  
X
3
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ASSEMBLY  
CARTON CONTENTS  
HOW TO ASSEMBLE YOUR JACK  
(refer to Figs. 1, 2)  
Inside the box, you will find (see Fig. 1):  
1. A jack  
• Install the rubber handle holder onto the  
top nut and slide downward until it rests  
upon the reservoir of the jack. Orient the  
holder portion away from the handle socket  
so that it does not interfere with the release  
valve and handle socket operation.  
2. A rubber handle holder  
3. A 2-piece handle  
Jack  
• Assemble the handle sections by lining up  
the spring detent in the rubber grip section  
with the slot in the other section.  
Rubber h
holde
2-piece handle  
FIG. 1  
FIG. 2  
OPERATION  
A. Handle  
D
B. Handle Socket  
C. Oil Filler Plug  
D. Saddle  
I
G
E. Oil Reservoir  
F. Cylinder  
G. Ram  
K
A
H. Release Valve  
I. Screw Extension  
J. Plunger  
C
B
E
K. Top Nut  
J
F
H
FIG. 3  
4
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OPERATION  
KNOW YOUR JACK  
HOW TO USE YOUR JACK  
(refer to Fig. 3, page 4)  
(refer to Fig. 3, page 4)  
RAISING THE JACK  
• Compare these illustrations with your jack  
BEFORE operation and/or oil level  
maintenance to become familiar with the  
location of various jack components.  
1. When lifting a vehicle, place the vehicle in  
park, engage emergency brake and chock  
the tire(s) diagonally opposite the tire(s)  
being raised to prevent inadvertent  
movement forward and backward. Use  
wheel chocks which are rated for the tire  
dimension of your vehicle.  
BEFORE USE  
Occasionally during shipment and/or  
handling, air gets trapped in the hydraulic  
system, which interferes with jack  
performance. To release this trapped air do  
the following:  
2. Locate the release valve and, using the  
provided handle, engage the release valve  
and turn handle clockwise until firm  
resistance to further thread engagement  
is felt. Center the jack saddle under  
manufacturers recommended lift point.  
1. Using the end of the assembled handle  
which is formed to fit the release valve,  
engage and open the release valve by  
turning it counterclockwise no more than  
1/2 full turn from a fully closed position.  
To avoid crushing injuries and  
!
property damage: NEVER place yourself  
or others under a load for the purpose of  
pumping the handle socket. Use ONLY the  
handle provided.  
2. With the jack in the upright position,  
remove the oil filler plug. Insert the handle  
into the handle socket, then pump 6 to 8  
full strokes.  
3. Verify lift point, insert handle into the  
handle socket and pump to contact the lift  
point. To lift, continue pumping until load  
reaches desired height.  
3. Ensure that the oil is level with the oil filler  
plug hole, then reinstall oil filler plug. If low,  
add oil as described in the Maintenance  
Section (see page 7).  
4. Immediately after lifting, transfer the load  
to a pair of appropriately rated jack stands.  
Rated capacity of jack stands is per  
!
4. Ensure that the pump operates smoothly  
before putting into service. Lubricate as  
instructed in the Maintenance Section (see  
page 7).  
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.  
OPERATING PRINCIPLES  
• With the 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 and raises the saddle.  
When the ram reaches maximum  
extension, oil is bypassed back into the  
reservoir to prevent an overextended 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.  
5
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OPERATION  
a. Use another jack to raise the vehicle  
LOWERING THE JACK  
To avoid crushing injuries and property  
damage: Keep hands and feet clear of work  
area when lowering load.  
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.  
1. Raise load high enough to clear the jack  
stands, then carefully remove jack stands  
(always use in pairs).  
2. Slowly turn the handle counterclockwise,  
but no more than 1/2 full turn. If the load  
fails to lower:  
3. After removing jack from under the load,  
push saddle down to reduce ram exposure  
to rust and contamination.  
MAINTENANCE  
SPECIFICATIONS  
(see Fig. 4)  
MODEL  
Description  
A X B Base Dimension (B not shown)  
50280  
2 Tons  
50282  
6 Tons  
I
tem  
3-3/4 in. X 3-3/4 in.  
13-11/16 in. (348mm) 16-13/16 in. (427mm)  
4 in. X 4-1/2 in.  
C
D
E
F
Maximum Height  
Minimum Height  
7-1/4 in. (183mm)  
4-1/2 in.  
8-5/8 in. (219mm)  
5-1/4 in.  
Hydraulic Stroke (travel)  
Extension Screw Travel  
2 in.  
3 in.  
A
FIG. 4  
6
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MAINTENANCE  
• Refill with new oil through the oil filler plug  
MAINTAINING OIL LEVEL  
hole. DO NOT allow dirt or other foreign  
material to enter the hydraulic system when  
filling.  
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.  
• After refilling, remove any air from the  
hydraulic system by opening the release  
valve and rapidly pumping the jack handle  
several times.  
• Replace the oil filler plug.  
ADDING OIL  
• Position the jack on level ground in an  
upright (vertical) position and fully lower the  
saddle.  
LUBRICATION  
• Add lubricating oil to all moving parts as  
needed.  
• Remove oil filler plug (see Fig. 3).  
• Oil should be filled to the level of the oil  
filler plug hole. If low, add oil as needed.  
PREVENTING RUST  
• Check ram and pump plunger (see Fig. 3)  
every few months for any signs of rust or  
corrosion. Clean as needed by wiping with  
an oily cloth.  
REPLACING OIL  
To drain oil, remove oil filler plug and open  
release valve (see Fig. 3).  
• When not in use, ALWAYS store jack with  
saddle and pump plunger lowered all the  
way down.  
• Turn jack on its side and drain old oil out  
through the oil filler plug hole.  
STORAGE  
HOW TO STORE YOUR JACK  
This jack is designed for compact and convenient storage (see Fig. 5).  
• Insert the rubber handle holder onto the top nut.  
• Depress the spring lock to separate the handle pieces, and insert them into the handle  
holder.  
FIG. 5  
7
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TROUBLESHOOTING  
POSSIBLE CAUSES AND  
SOLUTIONS  
Jack will  
not lift  
load  
Jack will lift  
load, but will lower  
not hold  
Jack will not  
Poor jack  
lifting.  
Pump feels height  
spongy  
Jack will not Handle raises  
(Refer to Operation and  
Maintenance procedures for  
detailed information)  
lift to full  
by itself when  
jack is under  
load  
completely  
Release valve not tightly closed.  
To close or tighten, turn release  
valve clockwise.  
X
X
Air is in hydraulic system.  
Release air from system.  
See BEFORE INITIAL USE.  
X
X
X
X
X
X
X
X
Oil level is low in jack.  
Add oil as required.  
X
1. If ram is still extended after load is  
removed, manually push down saddle.  
2. Oil reservoir is over-filled. Drain out  
some oil.  
3. Lubrication of moving parts is  
necessary.  
Power unit is malfunctioning.  
Replace the jack.  
X
X
X
X
PARTS  
MODEL NUMBER:  
The Model Number and Serial Number are found on the jack label and handle socket.  
Always mention the Model Number and Serial Number when requesting service or repair  
parts for your jack.  
2 TON : 50280  
6 TON : 50282  
OIL FILLER PLUG  
HAN
AVAILABLE REPLACEMENT PARTS  
Model No. Handle Oil Filler Plug Operators Manual  
50280  
50282  
1225  
1225  
12217  
12217  
12222  
12222  
FIG. 6  
For after sale support and assistance:  
Call 8:00 AM - 4:45 PM CST., Monday - Friday 1-888-332-6419  
8
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®
Registered Trademark / TM Trademark / SM Service Mark of Sears Brands, LLC  
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