DTJ10T
Visit our website at: http://www.harborfreight.com
Email our technical support at: [email protected]
HEAVY DUTY
HYDRAULIC TOE JACK
57664
Owner’s Manual & Safety Instructions
Save This Manual Keep this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the
back of the manual near the assembly diagram (or month and year of purchase if product has no number).
Keep this manual and the receipt in a safe and dry place for future reference. 24a
When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-888-866-5797 as soon as possible.
Copyright
©
2020 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.
Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein.
Tools required for assembly and service may not be included.
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Page 2 For technical questions, please call 1-888-866-5797. 57664
WARNING SYMBOLS AND DEFINITIONS
This is the safety alert symbol. It is used to alert you to
potential personal injury hazards. Obey all safety messages
that follow this symbol to avoid possible injury or death.
Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
Addresses practices not related to personal injury.
IMPORTANT SAFETY INFORMATION
1. Study, understand, and follow all instructions
before operating this device.
2. Do not exceed rated capacity.
3. Use only on a hard, level surface
capable of supporting the load.
4. Support the vehicle with appropriate
means immediately after lifting.
5. Failure to heed these markings may result in
personal injury and/or property damage.
6. Lift only on areas of the vehicle as
specified by the vehicle manufacturer.
7. No alterations shall be made to this product.
8. Only attachments and/or adapters supplied
by the manufacturer shall be used.
9. Use caution if lifting with Toe. Toe must be
positioned against a secure lifting point. Load must
be centered on Toe. Only lift on solid surfaces.
10. Do not adjust safety valve.
11. Wear ANSI-approved safety goggles and
heavy-duty work gloves during use.
12. Keep clear of load while lifting and lowering.
13. Lower load slowly.
14. Do not use for aircraft purposes.
15. Apply parking brake and chock
tires before lifting vehicle.
16. Inspect before every use; do not use
if parts loose or damaged.
17. Keep your work area clean and well lit.
Cluttered work areas invite accidents.
18. Keep bystanders, children, and visitors away while
operating Jack. Distractions can cause you to
lose control. Protect others in the work area.
19. Stay alert. Watch what you are doing, and use
common sense when operating a jack. Do not use
a jack while tired or under the influence of drugs,
alcohol, or medication. A moment of inattention while
operating jacks may result in serious personal injury.
20. Store idle jacks out of reach of children
and other untrained persons. Jacks are
dangerous in the hands of untrained users.
21. Jack service must be performed only by
qualified repair personnel. Service or
maintenance performed by unqualified
personnel could result in a risk of injury.
22. When servicing a jack, use only identical replacement
parts - refer to attached, product-specific parts list
and diagram. Follow instructions in the “Inspection,
Maintenance, And Cleaning” section of this manual.
Use of unauthorized parts or failure to follow
maintenance instructions may create a risk of injury.
23. Maintain labels and nameplates on the Jack. These
carry important information. If unreadable or missing,
contact Harbor Freight Tools for a replacement.
24. Before use, read manufacturer’s instruction
manual for the vehicle (or object) you will lift.
25. When lifting only one wheel, 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.
26. When lifting the entire front end or rear end
of a vehicle, 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,
adjust the jack stands to the same height.
Page 3For technical questions, please call 1-888-866-5797.57664
27. Do not work under the vehicle without properly
supporting the vehicle with jack stands.
28. Avoid dangerous oncoming traffic. Use the Jack
as far away from the roadside as possible.
29. Industrial applications must follow
OSHA requirements.
30. Do not allow anyone in the vehicle while
using the Jack. Keep all bystanders a
safe distance away from the vehicle.
31. Do not support both ends of the
vehicle at the same time.
32. Before lowering the Jack, remove all tools
and equipment from under the vehicle.
33. 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.
SAVE THESE INSTRUCTIONS.
Page 4 For technical questions, please call 1-888-866-5797. 57664
Specifications
Weight Capacity
10 Tons (20,000 lb.) (Toe Lift)
12.5 Tons (25,000 lb.) (Head Lift)
Low Profile Toe Lift 1-1/4″ - 6-7/8″
Top Platform (Head) Lift 12-7/8″ - 18-1/2″
Base Dimensions 11-1/2″ x 8-5/8″
Operation
Components
Head
Toe
Handle
Handle Socket
Reservoir
Fill Plug
Release Stem
Raising Jack
WARNING! TO PREVENT SERIOUS INJURY: Only use
jack on hard, level surfaces, such as solid concrete slabs.
1. Attach end of Handle to Release Stem.
2. Turn Release Stem clockwise to completely
close valve. Do not overtighten valve.
3. Remove handle from Release Stem.
Insert Handle into Handle Socket.
4. Make sure load is centered, and that
Jack is lifting an appropriate area.
WARNING! TO PREVENT SERIOUS INJURY:
Toe must be positioned against a secure lifting
point. Load must be centered on Toe.
5. Pump Handle to raise load.
Lowering Jack
1. Attach end of Handle to Release Stem.
2. Turn Handle slowly counterclockwise to open valve.
Note: Do not turn Release Valve more
than two complete revolutions.
Page 5For technical questions, please call 1-888-866-5797.57664
Maintenance and Servicing Instructions
Procedures not specifically explained in this manual
must be performed only by a qualified technician.
TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION: Do not use damaged equipment.
If abnormal noise or vibration occurs, have the problem corrected before further use.
Cleaning, Maintenance, and Lubrication
1. Before each use, inspect the general condition
of the 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.
2. Before each use, thoroughly test the Jack for
proper operation prior to its actual use. If the
Jack appears not to be working properly, have
the problem corrected before further use.
3. Before each use, check oil level:
a. Lower the Jack to its lowest position. Follow
instructions on lowering Jack on Page 4.
b. With the Jack upright in a level, vertical position
and the Handle pointing down in the Fulcrum,
carefully remove the Oil Fill Plug. The oil level
should be level with the bottom of Oil Fill hole.
Top off if necessary but do not overfill. Always
fill with clean hydraulic jack oil (not included).
WARNING! TO PREVENT SERIOUS INJURY:
Make sure no contaminants enter the Reservoir
when filling with oil. Never use any oil other
than hydraulic jack oil to fill Reservoir.
c. Reinstall Oil Fill Plug. Check Jack operation.
Bleed air from system as needed.
4. Change the hydraulic oil at least
once every three years:
a. With the Jack fully lowered, remove the
Oil Fill Plug on the side of the Housing.
b. Tip the 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.
c. With the 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.
d. Then, reinstall the Oil Fill Plug and check jack
operation. Bleed air from system as needed.
5. Clean with a clean cloth with a detergent
or mild solvent. Then, store the Jack in a
safe, dry location out of reach of children
and other non-authorized people.
Troubleshooting
Problem Possible Causes Likely Solutions
Toe will not extend. 1. Release Stem is open.
2. Debris in Valve Sealing Section.
3. Crack in Valve Sealing Section.
1. Close Release Stem completely.
2. Clean Valve Sealing Section.
3. Repair or Replace Valve
Sealing Section.
Jack will not lift
to full height.
1. Too much hydraulic jack
oil in Reservoir.
2. Not enough hydraulic
jack oil in Reservoir.
1. Remove excess oil and fill
with correct amount.
2. Top off with hydraulic jack oil to
the bottom of the Oil Fill Hole.
Toe extends but
falls immediately.
1. Air in system. 1. Press Ram down to lowest
position and let air out of Reservoir
by pushing Fill Plug sideways.
External Oil Leak. 1. Damage to Reservoir,
Release Stem, or Pump.
1. Repair or Replace damaged part.
Follow all safety precautions whenever diagnosing or servicing tool.
Do not lift anything with Jack while servicing.
Page 6 For technical questions, please call 1-888-866-5797. 57664
Parts List and Diagram
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM
IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR 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.
Parts List
Part Description Qty
1 Toe 1
2 Snap Ring 1
3 Bushing 2
4 O-Ring 1
5 Ram 1
6 Piston Ring 1
7 Sealing Washer 1
8 O-Ring 1
9 Washer 1
10 Washer 1
11 Reset Spring 2
12 Steel Ball 1
13 Body 1
14 Oil Fill Plug 1
15 Steel Ball 1
16 Ball Seat 1
17 Safety Valve Spring 1
18 O-Ring 3
19 Sealing Bolt 1
20 Steel Ball 1
21 Release Stem 1
Part Description Qty
22 Handle Socket 1
23 Pin 1
24 Pin 1
25 Pin 3
26 Rod Joint 1
27 Pump Core 1
28 Dust Proof Ring 1
29 Gasket 1
30 Y-Ring 1
31 Pump Body 1
32 Pin 1
33 Connecting Rod Seat 1
34 Nylon Gasket 1
35 Copper Washer 2
36 Oil Valve Body Assembly 1
37 Rear Handle 1
38 Front Handle 1
39 Nut 1
40 Washer 1
41 Washer 1
42 Bolt 1
Record Serial Number Here:
Note: If product has no serial number, record month and year of purchase instead.
Note: Some parts are listed and shown for illustration purposes only, and are not available
individually as replacement parts. Specify UPC 193175420817 when ordering parts.
Page 7For technical questions, please call 1-888-866-5797.57664
Assembly Diagram
26677 Agoura Road • Calabasas, CA 91302 • 1-888-866-5797
Limited 90 Day Warranty
Harbor Freight Tools 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 90 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, criminal activity, improper
installation, normal wear and tear, 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.
