12 TON
AIR HYDRAULIC JACK
94487
ASSEMBLY & OPERATING INSTRUCTIONS
TO PREVENT SERIOUS INJURY,
READ AND UNDERSTAND ALL WARNINGS
AND INSTRUCTIONS BEFORE USE.
Due to continuing improvement, actual product may differ slightly from the product described herein.
®
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.
any other condition that may affect its safe operation. Many accidents are caused by poorly
maintained jacks.
11.
12.
Jack service must be performed only by qualified repair personnel. Service or mainte-
nance performed by unqualified personnel could result in a risk of injury.
When servicing a jack, use only identical replacement parts - refer to the Parts List on
page 8 and Assembly Diagram on page 9 of this manual. Follow instructions in the “In-
spection, Maintenance, And Cleaning” section of this manual. Use of unauthorized parts
or failure to follow maintenance instructions may create a risk of injury.
13.
14.
WARNING! Do not exceed the maximum lift capacity for the Bottle Jack as stated on
the product label and the specifications table. Overloading the Jack could cause seri-
ous personal injury and/or property damage.
The Bottle Jack is designed for intermittent use only. Do not use the Jack to support a
vehicle over extended periods of time. The duration of the lifting job should be kept as short
as possible. Always use jack stands to support a vehicle over an extended period of time.
15.
16.
Maintain labels and nameplates on the Bottle Jack. These carry important information. If
unreadable or missing, contact Harbor Freight Tools for a replacement.
Prior to using the Bottle Jack, make sure to read and understand all warnings, safety
precautions, and instructions as outlined in the manufacturer’s instruction manual for
the vehicle (or object) you will lift.
17.
18.
When lifting only one wheel, make sure to support the load immediately with one jack
stand (not included) placed under the side of the vehicle being lifted. Align the saddle of
the jack stand directly under the vehicle’s seam or recommended lifting point.
When lifting the entire front end or rear end of a vehicle, make sure to support the load
immediately with two jack stands. Align the saddles of the jack stands directly under the
vehicle’s frame or recommended lifting points. Also make sure the jack stands are adjusted
at the same height.
19.
Make sure the Bottle Jack is used only on a dry, oil/grease free, flat, level, solid surface
capable of supporting the weight of the vehicle being lifted and any additional tools
and equipment.
20.
21.
22.
23.
WARNING! Do not work under the vehicle without properly supporting the vehicle with
jack stands. Make sure the load and jack stands are stable before getting under a vehicle.
Use the Bottle Jack only on vehicles whose frames have lifting points (on its seam or
frame) capable of aligning with the Saddle of the Jack.
This bottle jack is not intended for roadside use. This jack requires a flat, stable surface
to safely lift a load.
Do not use the Bottle Jack with the vehicle’s engine running. Make sure to place the
vehicle’s transmission in “Park” (if automatic) or “1st Gear” (if manual). Then set the emergency
brake, and block the tires opposite the tire being lifted.
24.
25.
Industrial applications must follow OSHA requirements.
Always keep hands, fingers, and feet away from all moving parts of the Bottle Jack when
applying or releasing a load. Remain clear of the vehicle being raised or lowered. People
and animals should be kept at a safe distance when using the Jack.
SKU 94487
For technical questions please call 1-800-444-3353.
Page 3
26.
27.
Use extreme caution when applying or releasing a load. Never allow the load to suddenly
release. Slowly and carefully apply and release the load.
Do not allow anyone in the vehicle while using the Bottle Jack. Keep all bystanders a safe
distance away from the vehicle.
28.
29.
30.
Never leave the Bottle Jack unattended when the Jack is under a load.
Never support both ends of the vehicle at the same time.
Before lowering the Bottle Jack, make sure tool trays, jack stands, and all other tools
and equipment are removed from under the vehicle.
31.
32.
Do not stand on the Bottle Jack as it may tip, causing personal injury.
If changing a damaged tire, make it easier to remove the lug nuts by slightly loosening
the lug nuts before raising the tire off the ground.
33.
This Bottle Jack is not to be used for aircraft purposes. Never modify the Bottle Jack in
an attempt to use it for a purpose it was not designed for.
34.
35.
36.
Never adjust the factory set safety valve.
Compressed air only. Never use compressed gas as a power source for this item.
WARNING! The warnings, precautions, and instructions discussed in this manual cannot
cover all possible conditions and situations that may occur. The operator must understand
that common sense and caution are factors, which cannot be built into this product, but must
be supplied by the operator.
Unpacking
When unpacking your 12Ton Bottle Jack, check to make sure that the parts listed on page 8 are included.
If any parts are damaged or broken, please call HARBOR FREIGHT TOOLS at: 1-800-444-3353.
Assembly
It is important that you read the entire manual to become familiar with the product BEFORE you operate
the Bottle Jack.
Connect both parts of the Handle (45). Insert it into the Handle Bracket (34) - see Figure 1 on
page 5 and the Assembly Diagram on page 9.
Operation
WARNING: Prior to its first use, make sure to check for proper hydraulic oil level in the Bottle
Jack. Then thoroughly test the Bottle Jack for proper operation prior to its actual use. If the
Bottle Jack appears not to be working properly, it may be necessary to bleed its hydraulic
system of excess air.
Bleeding the System
1.
2.
3.
Remove the Filler Plug (16). Insert the slot on the lower portion of the Handle (45) over the Re-
lease Valve (4). Turn the Handle Assembly counterclockwise to open the Release Valve (4).
Insert the Handle Assembly into the Handle Bracket (34). Pump the Handle (45) 10-15
times.
Connect the air supply to the air inlet hose. Squeeze the air valve and allow it to operate for
one minute. Disconnect the air supply.
SKU 94487
For technical questions please call 1-800-444-3353.
Page 4
Bleeding the System (Cont’d)
4.
5.
Once air is bled, check the Oil Fill Hole and, if necessary, top off the Oil Fill Hole with hydraulic
oil. Then, replace the Oil Filler Plug.
Test the Jack several times for proper operation before attempting to lift a load. If, after purg-
ing, the Jack still does not appear to be working properly, do not use the Jack until it
has been repaired by a qualified service technician.
Figure 1
Figure 2
Spring
Plate (20)
Filler
Plug (16)
Release
Valve (4)
Handle
Bracket (34)
Handle (45)
Raising the Jack
WARNING! Make sure the vehicle is parked on a flat, level, solid surface. Turn off the vehicle’s
engine. Place the vehicle’s transmission in “PARK” (if automatic) or in its highest gear (if
manual). Set the vehicle’s emergency brake. Then, block the wheels that are not being lifted.
1.
2.
Verify that the vehicle’s weight is not more than the weight capacity for this jack.
Check to make sure the Jack is fully lowered. If not, insert the lower portion of the Handle into
the Valve Release, and turn the Handle counterclockwise to lower the Jack. Once the Jack is
fully lowered, turn the Handle firmly clockwise to close the Valve Release.
3.
4.
Adjust the Extension Screw (13-1) as needed to position the it directly underneath the lifting
point. Turn it counterclockwise to raise, or clockwise to lower.
Lifting using pressurized air power:
a. Connect the air supply hose lock fitting into the Air Inlet Fitting. The Lock Lever (A-27) should
be in the OFF (not locked) position.
b. Connect the Air Compressor (compressor not included, must supply at least 7 CFM at 110-
120 PSI) to the Air Supply Hose.
c. Turn the compressor on and allow it to pressurize, if not already pressurized.
d. Press the Lever (A-28) to the ON position and lock it into place using the Lock Lever (A27).
This will provide a continuous air supply to the Air Motor (42), raising the jack.
Lifting manually:
Raise the Jack by alternately lifting and lowering the Handle.
SKU 94487
For technical questions please call 1-800-444-3353.
Page 5
Lowering the Jack
Caution: Avoid rapid descent of the load by turning the Release Valve slowly.
1.
2.
3.
4.
Make sure the Lock Lever (A27) is released to stop the air flow to the Air Motor (42).
If attached, remove the Air Supply Hose (43) from the Air Inlet Fitting.
Place the slotted end of the Handle (45) onto the Release Valve.
Slowly and carefully lower the load by turning the ReleaseValve counterclockwise in very small
increments. Only use the Handle (45), never use your hand to turn the Release Valve.
5.
6.
Lower the Extension Screw (13-1) as needed by turning clockwise.
Remove the Jack.
Oil Replacement
1.
2.
3.
4.
5.
6.
Place the Jack in an upright position.
Completely lower the Ram (13). Remove the Filler Plug (16).
Fill with high quality hydraulic jack oil to the lower rim of the fill hole.
Purge the air from the hydraulic system as previously described.
Top off with hydraulic oil.
Replace the Filler Plug (16).
INSPECTION, MAINTENANCE, AND CLEANING
1.
2.
3.
Before each use, inspect the general condition of the Bottle Jack. Check for broken, cracked,
or bent parts, loose or missing parts, and any condition that may affect the proper operation
of the product. If a problem occurs, have the problem corrected before further use. Do not
use damaged equipment.
Before each use, make sure to thoroughly test the Bottle Jack for proper operation prior
to its actual use. If the Bottle Jack appears not to be working properly, it may be neces-
sary to bleed its hydraulic system of excess air. Refer to pages four and five for complete
instructions on bleeding the system.
Change the hydraulic oil at least once every three years. To do so, with the Bottle Jack
fully lowered, remove the Oil Filler Plug on the side of the Housing. Tip the Bottle Jack to allow
the old hydraulic oil to drain out of the Housing completely, and dispose of the old hydraulic oil
in accordance with local regulations. With the Bottle Jack upright, completely fill the Housing
with a high quality hydraulic oil (not included) until the oil just begins to run out of the Oil Fill
Hole. Then, reinstall the Oil Filler Plug.
4.
5.
When cleaning, use a clean cloth with a detergent or mild solvent. Then, store the Bottle Jack
in a safe, dry location out of reach of children and other non-authorized people.
WARNING! All maintenance, service, or repairs not listed in this manual are only to be
attempted by a qualified service technician.
SKU 94487
For technical questions please call 1-800-444-3353.
Page 6
SKU 94487
For technical questions please call 1-800-444-3353.
Page 7
Parts List-Main Body
Part
Description
Base
Q’ty
Part
Description
Q’ty
Part
Description
Q’ty
3
1
1
16 Filler Plug
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
3
32 R-Pin
17 Nylon Ring
18 Top Nut
19 O-Ring
33 Connector
34 Handle Bracket
35 Ball
1
2
3
4
5
6
7
8
9
Ball
6
1
1
2
1
1
2
1
1
1
1
1
1
1
1
1
Seal
1
Release Valve
Ball Cup
Spring
20 Spring Plate
21 Spring
36 Ball Cup
37 Spring
1
1
22 Eye Bolt
23 Nut
38 Screw
1
Spring
39 O-Ring
40 Screw
1
Screw
24 Lock Washer
25 Washer
26 Pump Cylinder
27 O-Ring
1
Nylon Ring
41 Plastic Cap
42 Air Motor
43 Air Hose
44 Air Valve
45 Handle
1
10 Cylinder
11 O-Ring
1
1
12 Cup Seal
13 Ram
1
28 Nylon Ring
29 Backup Ring
30 Piston
2
13-1 Extension Screw
14 Packing
31 Pin
15 Reservoir
Parts List-Air Motor
Part
Description
Q’ty
1
Part
Description
Q’ty
1
Part
Description
Q’ty
1
A1 Air Pump Cylinder
A2 Nut
A15 O-Ring
A29 Nut
1
A16 Big Piston Cap
A17 Sealing Ring
A18 Nylon Ring
A19 Air Cylinder
A20 Air Cylinder Cap
A21 Bolt
1
A30 O-Ring
A31 O-Ring
A32 Packing
A33 Throttle
A34 Spring
A35 Lock Nut
A36 Bolt
1
A3 Sealing Ring
A4 Nylon Ring
A5 Copper Ring
A6 Air Cylinder Seat
A7 Nut
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
A8 Spring
1
A22 Coupler Seat
A23 Retaining Ring
A24 O-Ring
1
1
A9 Air Pump Piston
A10 O-Ring
1
1
A37 Valve Body
A38 Screw
A39 Screen
A40 O-Ring
1
1
2
1
A11 Sealing Ring
A12 Big Piston
A13 O-Ring
2
A25 Coupler
1
1
1
A26 Air Hose
1
1
1
A27 Lock Lever
A28 Lever
1
A41 Quick Coupler-
Male
1
A14 Small PIston
1
1
SKU 94487
For technical questions please call 1-800-444-3353.
Page 8
Assembly and Parts Diagram-Main Body
Note: Some parts are listed and shown for illustration purposes only and are not available individu-
ally as replacement parts.
SKU 94487
For technical questions please call 1-800-444-3353.
Page 9
Assembly and Parts Diagram-Air Motor
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 REPRESENTATION 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.
SKU 94487
For technical questions please call 1-800-444-3353.
Page 10
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
SKU 94487
For technical questions please call 1-800-444-3353.
Page 11
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