R
5 TON LONG FRAME JACK
94641
ASSEMBLY AND OPERATING INSTRUCTIONS
3491 Mission Oaks Blvd., Camarillo, CA 93011
®
©
Copyright 2006 by Harbor Freight Tools . All rights reserved. No portion of
this manual or any artwork contained herein may be reproduced in any shape
or form without the express written consent of Harbor Freight Tools.
For technical questions and replacement parts, please call 1-800-444-3353
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9.
Maintain tools with care. Keep tools clean for better and safer performance. Follow
instructions for lubricating and changing accessories. The handle must be kept clean,
dry, and free from oil and grease at all times.
10. Stay alert. Watch what you are doing, use common sense. Do not operate any tool
when you are tired.
11. Check for damaged parts. Before using any tool, any part that appears damaged
should be carefully checked to determine that it will operate properly and perform its
intended function. Check for alignment and binding of moving parts; any broken parts
or mounting fixtures; and any other condition that may affect proper operation. Any
part that is damaged should be properly repaired or replaced by a qualified technician.
12. Replacement parts and accessories. When servicing, use only identical
replacement parts. Use of any other parts will void the warranty. Only use accessories
intended for use with this tool. Approved accessories are available from Harbor Freight
Tools.
13. Do not operate tool if under the influence of alcohol or drugs. Read warning
labels if taking prescription medicine to determine if your judgment or reflexes are
impaired while taking drugs. If there is any doubt, do not operate the tool.
14. Maintenance. For your safety, service and maintenance should be performed
regularly by a qualified technician.
Warning:The warnings, cautions, and instructions discussed in this instruction manual
cannot cover all possible conditions and situations that may occur. It must be under-
stood by the operator that common sense and caution are factors which cannot be built
into this product, but must be supplied by the operator.
Unpacking
When unpacking, check to make sure the parts listed on pages 9 & 10 are included. If any
parts are missing or broken, please call Harbor Freight Tools at the number on the cover of
this manual as soon as possible.
For technical questions, please call 1-800-444-3353.
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Specific Jack Safety Precautions
Warning!! Stand clear of the Jack when raising or lowering a vehicle.
1. Jack Capacity. Never exceed the Jack’s capacity of 10,000 Lbs.(5Tons). Check the vehicle’s
owner’s manual to determine the actual gross weight of your vehicle before attempting to lift
it.
2. Never ride on the Jack. Never ride on the Jack, and never have people or pets in the vehicle
you are raising.
3. Only use Jack to raise vehicle. After raising the vehicle, use jack stands to keep the vehicle
suspended for periods of time. Do not work on or under the vehicle while it is supported by
the Jack. The Jack is designed for lifting the vehicle only.
4. Place Jack on correct surface. Only use this Jack on a stable, level, clean and dry surface
that is capable of sustaining the load.
5. Stabilize the load. Ensure that the load remains stable at all times. Do not move the load
while it is on the Jack.
6. Vehicle lifting. When lifting a vehicle, apply the emergency brake and block all of the wheels
that will remain on the ground.
7. Center load. Center the load on the Jack Saddle (7.1). Off-center loads can damage seals,
causing Jack failure.
8. Lift only using correct vehicle lift points. Read the vehicle manual to find the proper lifting
points for the vehicle.
9. Never use the Jack unless it is filled with hydraulic fluid. Filling with hydraulic fluid is
covered in the maintenance section of this manual.
10. NEVER USE THIS JACK FOR AIRCRAFT PURPOSES.
11. Caution: Always be aware of Dynamic Loading. If you drop a weight on the Long
Frame Jack, it may create for a brief instant, an excess load. The Long Frame Jack is
designed for a maximum load of 10,000 lbs.; do not exceed this lifting capacity.
12. BypassValve (6.34) is preset by the factory and must not be adjusted by the user. Any
adjustment in the Bypass Valve could result in failure of the jack, personal injury and/or
property damage.
Assembly
Insert the Handle (1.5) into the opening on the top
Handle (1.5)
of the Handle Fork (2.4), and secure it with the
Washer (1.6) and the Screw (1.7).
See Assembly Drawings on page 8.
Handle Fork (2.4).
Foot Pedal (2.1)
Saddle (7.1)
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Operation
Raising the Vehicle.
1.
Position the Jack so that the Saddle (7.1) is at one of the recommended lifting points.
Pull back on the Screw Rod (1.4) and turn it to the right (see label on handle) to lock
the release valve. Pump the Handle (1.5) or the Foot Pedal (2.1) until the Saddle (7.1)
fully engages the lifting point, then continue to pump the Jack to the needed height.
Use jack stands (not included) that are capable of supporting the weight of the vehicle
being lifted. Use your vehicle’s owner’s manual to determine the specified points on
the vehicle to safely position jack stands.
Once the vehicle is safely positioned over the jack stands, slowly turn the Screw Rod
(1.4) to the left and move the Handle (1.5) back and forth until the Screw Rod drops
as far as it will go. Turn the Screw Rod (1.4) right to open the release valve and lower
the vehicle onto the jack stands. Caution: Press lightly on the Screw Rod until you are
able to judge the rate at which the vehicle is being lowered.
2.
3.
4.
To determine if the vehicle is safely up on jack stands, stand away and attempt to gen-
tly rock the vehicle. Caution: Be prepared for the vehicle to suddenly drop if the jack
stands are not properly placed. If it sways and seems unstable, repeat the procedure
and reposition the jack stands. Test again.
Lowering Vehicles.
1.
First, clear any tools or equipment from under the vehicle. Make sure there are no
obstructions and that people are at a safe distance from the vehicle.
Position the Jack so that the Saddle (7.1) is at one of the recommended lifting points.
Pull back on the Screw Rod (1.4) and turn it to the right (see label on handle) to lock
the release valve. Pump the Handle (1.5) until the Saddle (7.1) fully engages the lifting
point, then continue to pump the Jack to the needed height above and clear of the jack
stands.
2.
3.
4.
Remove the jack stands. Note: Position yourself safely so that you are not under any
part of the vehicle before lowering the Jack or removing the jack stands.
Slowly turn the Screw Rod (1.4) to the left and move the Handle (1.5) back and forth
until the Screw Rod drops as far as it will go. Now, turn the Screw Rod (1.4) right to
open the release valve and lower the vehicle.
5.
Pull the Jack clear of the vehicle and store in a safe place.
General Maintenance
1.
Keep the Jack clean and dry.
2.
Periodically lubricate the bearing and axles on the caster wheels with high quality
grease. Use a grease gun (not included) to service the Jack’s zerk fittings.
Have a qualified service technician periodically dismantle and lubricate the handle
assembly and all lift arm linkages.
Watch for hydraulic oil leaks. Fill oil if necessary. If leaks persist, contact an authorized
service technician. Never use the Jack if it is leaking hydraulic oil.
If the Jack does not lift to satisfaction, it may have air in the hydraulic system and need
to be bled. Note: Bleeding and oil fill instructions follow on page 6.
3.
4.
5.
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Page 5
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Maintenance (continued)
If the Jack is not performing properly, it may have air in the hydraulic system and need
to be bled. Never attempt to bleed the Long Frame Jack while it is lifting a vehicle or
object.
Bleeding and filling the Jack with hydraulic oil.
See the Assembly Drawing on page 8.
Filling
1.
Place the Jack on a flat, level, solid surface.
2.
If just filling the Jack, open the Cover (8.1) with a standard slot screwdriver by
removing the two Screws (8.5). Swing the Cover (8.1) open (the two Rivets (8.3) act
as hinges). Then, remove the Cover Plate (3.15) by unthreading the 4 Bolts (3.16),
and remove the Paper Washer (3.14). Note:Take care not to damage or get debris on
the Paper Washer (3.14) or Cover Plate (3.15).
3.
4.
Using a high quality hydraulic oil, fill to the top of the Cylinder Body (3.13).
Replace the Cover Plate (3.15), Paper Washer (3.14), and the Bolts (3.16). Close the
Cover (8.1) and tighten on the Screws (8.5).
Bleeding
1.
Follow Step 2 (as explained above) to fill the Cylinder Body (3.13) as if you were filling
with oil.
2.
Apply pressure on the Saddle (7.1), holding it down. Put the Handle (1.5) in the vertical
position. Turn the Screw Rod (1.4) to the left, it should fall down into place. Now, turn
the Screw Rod (1.4) right to open the release valve and hold it there. Pump the Foot
Pedal (2.1) quickly, ten times. This will bring all the air out of the system. Continue
pumping until no more air bubbles appear. Fill to the top with a high quality hydraulic
oil if necessary. Put the Screw Rod back into the normal operating position.
3.
4.
Replace the Paper Washer (3.14), Cover Plate (3.15) and the Bolts (3.16). Close the
Cover (8.1) and tighten the Screws (8.5).
Test the Floor Jack. Make sure it is functioning properly before attempting to lift a
vehicle. Move the Saddle (7.1) up and down several times to make sure it is working
properly. If not, repeat the above process.
For technical questions, please call 1-800-444-3353.
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Handle Assembly Drawing
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Jack Assembly Drawing
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Page 8
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Parts List
bolt
bolt
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(Continued) Parts List
rivets
LIMITED 90 DAY WARRANTY
Harbor FreightTools Co. makes every effort to assure that its products meet high quality and durability standards,
and warrants to the original purchaser that this product is free from defects in materials and workmanship for
the period of ninety days from the date of purchase. This warranty does not apply to damage due directly or
indirectly, to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, or to lack of
maintenance.We shall in no event be liable for death, injuries to persons or property, or for incidental, contingent,
special or consequential damages arising from the use of our product. Some states do not allow the exclusion
or limitation of incidental or consequential damages, so the above limitation of exclusion may not apply to you.
THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with transportation charges
prepaid. Proof of purchase date and an explanation of the complaint must accompany the merchandise. If our
inspection verifies the defect, we will either repair or replace the product at our election or we may elect to
refund the purchase price if we cannot readily and quickly provide you with a replacement. We will return
repaired products at our expense, but if we determine there is no defect, or that the defect resulted from
causes not within the scope of our warranty, then you must bear the cost of returning the product.
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.
3491 Mission Oaks Blvd.
•
PO Box 6009
•
Camarillo, CA 93011
•
(800) 444-3353
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN THIS MANUAL AS A
REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR DISTRIBUTOR MAKES ANY REPRESENTA-
TION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO
THE PRODUCT OR THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE
MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS
SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS AND NOT BY THE BUYER.THE BUYER
ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR
REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS
THERETO.
For technical questions, please call 1-800-444-3353.
Page 10
SKU 94641
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