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.
PITTSBURGH
3 TON HEAVY DUTY FLOOR JACK
Item: 56624
Weight Capacity: 3 Tons (6,000 lb.)
Maximum Height: 18-1/4"
Minimum Height: 5-1/8"
Visit our website at: http://www.harborfreight.com
Email our technical support at: productsupport@harborfreight.com
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 © 2021 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.
AWARNING
Read this material before using this product. Failure to do so can result in serious injury. SAVE THIS MANUAL.
Table of Contents
- Safety: 2
- Setup: 4
- Operation: 5
- Maintenance: 7
- Parts List and Diagram: 10
- Warranty: 12
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.
Symbol | Definition |
---|---|
DANGER [!] | Indicates a hazardous situation which, if not avoided, will result in death or serious injury. |
WARNING [!] | Indicates a hazardous situation which, if not avoided, could result in death or serious injury. |
CAUTION [!] | Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury. |
NOTICE | Addresses practices not related to personal injury. |
IMPORTANT SAFETY INFORMATION
Failure to heed these markings may result in personal injury and/or property damage.
- Study, understand, and follow all instructions before operating this device.
- Do not exceed rated capacity.
- Use only on hard, level surfaces.
- Lifting device only. Immediately after lifting, support the vehicle with appropriate means.
- Do not move or dolly the vehicle while on the jack.
- No alterations shall be made to this product.
- Never work on, under or around a load supported only by this device.
- Do not adjust safety valve.
- Wear ANSI-approved safety goggles and heavy-duty work gloves during use.
- Keep clear of load while lifting and lowering.
- Lower load slowly.
- Apply parking brake and chock tires before lifting vehicle.
- Lift vehicle only at manufacturer recommended locations.
- Inspect before every use; do not use if parts are loose or damaged.
- Do not use for aircraft purposes.
- 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.
IMPORTANT! Before first use:
Check hydraulic fluid level and fill to 1/4" below the fill port as needed (see instructions on page 5). Thoroughly test the Jack for proper operation. If it does not work properly, bleed air from its hydraulic system (see instructions on page 5).
☑ SAVE THESE INSTRUCTIONS.
Setup - Before Use:
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product.
Note: For additional information regarding the parts listed in the following pages, refer to Parts List and Diagram on page 10.
Tool Set Up
Attaching the Handle
- Attach the Upper Handle to the Lower Handle.
- Loosen the Set Screw and insert the assembled Handle into the Handle Socket.
- Tighten the Set Screw.
Functions
Description of Jack Components:
- Saddle: The part that contacts the vehicle.
- Grease Fitting: (not shown) For lubrication.
- Cover Plate: Protective cover.
- Handle: Used to operate the jack.
- Handle Socket: Where the handle attaches.
- Safety Valve Cover: DO NOT OPEN OR ADJUST.
- Set Screw: Secures the handle.
- U-Joint: (not shown) Connects parts of the handle mechanism.
- Fill Plug: For adding hydraulic fluid.
- Hydraulic Unit: Contains the hydraulic system.
Operating Instructions
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product.
Bleeding
BEFORE EACH USE OR IF JACK PERFORMANCE DECREASES, check for excessive air and proper hydraulic fluid level in Jack. If Jack appears not to be working properly, it may be necessary to purge its hydraulic system of excessive air as follows:
- Turn handle counterclockwise to open Release Valve.
- Remove four screws holding on pump cover.
- Remove Oil Fill Plug and top off hydraulic oil.
- Apply pressure to saddle and quickly pump handle several times.
- Check Oil Fill Hole again and top off with hydraulic oil if necessary.
- Replace the Oil Fill Plug and turn handle clockwise to close Release Valve.
- Test several times for proper operation before attempting to lift a load.
Adding Hydraulic Fluid
- Remove Cover Plate and Fill Plug.
- Add high grade hydraulic fluid (sold separately) slowly until the fluid reaches 1/4" below the top of the Fill Port.
- Replace Fill Plug and Cover Plate.
Note: Do not touch the Handle when adding hydraulic fluid.
Lifting
Park vehicle on a flat, level, solid, surface safely away from oncoming traffic. Turn off the vehicle's engine. Place the vehicle's transmission in "PARK" (if automatic) or in its lowest gear (if manual). Set the vehicle's emergency brake. Then, chock the wheels that are not being lifted.
- Slowly twist the Handle counterclockwise to lower the Jack. Once the Jack is fully lowered, twist the Handle firmly clockwise.
- Carefully position the Jack's Saddle under the vehicle manufacturer's recommended lifting point. (See vehicle manufacturer's owner's manual for location of frame lifting point.)
- Pump the Handle until the top of the Saddle has nearly reached the vehicle's lifting point. Position the Saddle directly under the vehicle's lifting point.
- To lift the vehicle, pump the Handle. Use smooth, full strokes.
- Select matching jack stands (sold separately) of appropriate capacity. Set the jack stands to the same height according to the manufacturer's instructions, making sure they lock securely into position.
- Position the jack stands' saddles under the vehicle manufacturer's recommended support points.
WARNING! TO PREVENT SERIOUS INJURY: Ensure that the vehicle support points are fully seated in the saddles of both jack stands. Use a matched pair of jack stands per vehicle to support one end only.
- Slowly twist the Handle counterclockwise to lower the vehicle onto the jack stands' saddles.
- Once the vehicle is fully seated on the jack stands, continue slowly lowering the Jack until it is completely lowered.
- Remove the Jack and store safely out of the way.
Lowering
- Carefully remove all tools, parts, etc. from under the vehicle.
- Position the Jack's Saddle under the lifting point. Turn the Release Knob firmly clockwise and raise vehicle high enough to clear the jack stands.
- Carefully remove the jack stands.
- Slowly turn the Release Knob counterclockwise to lower the vehicle onto the ground.
- Lower the Jack completely. Store the Jack indoors out of children's reach.
Maintenance and Servicing
Procedures not specifically explained in this manual must be performed only by a qualified technician.
AWARNING
TO PREVENT SERIOUS INJURY FROM TOOL FAILURE: Do not use damaged equipment. If abnormal noise or vibration occurs, have the problem corrected before further use.
Cleaning, Maintenance, and Lubrication
- BEFORE EACH USE: Inspect the general condition of the Jack. Check for:
- loose hardware
- misalignment or binding of moving parts
- cracked or broken parts
- any condition that may affect its safe operation.
- BEFORE EACH USE: Thoroughly test the Jack for proper operation prior to its actual use. If the Jack appears not to be working properly, follow Bleeding instructions on page 5.
- ONCE A MONTH: Lubricate the Grease Fitting with a grease gun.
- AT LEAST ONCE EVERY THREE YEARS: Change the hydraulic fluid:
- With the Jack fully lowered, remove the Cover Plate and Fill Plug.
- Tip the Jack over to allow the old hydraulic fluid to drain out completely. Dispose of the old hydraulic fluid in accordance with local regulations.
- With the Jack upright, completely fill the Hydraulic Unit with high grade hydraulic fluid until the fluid is 1/4" below the top of the Fill Port.
- Turn the Release Knob counterclockwise to open the Release Valve.
- Pump the Handle or Foot Pedal up and down quickly several times to purge air from the system.
- Recheck fluid level and re-fill as needed.
- Replace the Fill Plug and Cover Plate.
- AFTER EACH USE: Wipe with a clean cloth. Store the Jack indoors out of children's reach.
Troubleshooting
AWARNING
TO PREVENT SERIOUS INJURY: Use caution when troubleshooting a malfunctioning jack. Stay well clear of the supported load. Completely resolve all problems before use. If the solutions presented in the Troubleshooting guide do not solve the problem, have a qualified technician inspect and repair the jack before use.
After the jack is repaired: Test it carefully without a load by raising and lowering it fully, checking for proper operation, BEFORE RETURNING THE JACK TO OPERATION.
DO NOT USE A DAMAGED OR MALFUNCTIONING JACK!
POSSIBLE SYMPTOMS | PROBABLE SOLUTION | ||||||
---|---|---|---|---|---|---|---|
Jack will not lift at its weight capacity | Saddle lowers under load | Pump stroke feels spongy | Saddle will not lift all the way | Handle moves up when jack is under load | Fluid leaking from fill plug | ||
X | X | X | Check that Release Valve is fully closed. Jack may require bleeding (see instructions on page 5). Valves may be blocked and may not close fully. To flush the valves: 1. Lower the Saddle and securely close the Release Valve. 2. Manually lift the saddle several inches. 3. Open the release valve by turning the Handle counterclockwise and force the saddle down as quickly as possible. | ||||
X | X | Jack may be low on hydraulic fluid. Check fluid level and refill if needed (see instructions on page 5). | |||||
X | Jack may require bleeding (see instructions on page 5). | ||||||
X | Unit may have too much hydraulic fluid inside. Check fluid level and adjust if needed (see instructions on page 5). |
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 and Diagram
Parts List
Part | Description | Qty | Part | Description | Qty |
---|---|---|---|---|---|
1 | Retaining Ring Ø20 | 2 | 20 | Retaining Ring Ø12 | 1 |
2 | Front Wheel Washer | 2 | 21 | Roller | 1 |
3 | Front Wheel | 2 | 22 | Roller Pin | 1 |
4 | Frame | 1 | 23 | Handle Socket | 1 |
5 | Retaining Ring Ø16 | 2 | 24 | Handle Bumper | 1 |
6 | Bolt | 2 | 25 | Handle Lock Clip | 1 |
7 | Retaining Ring Ø22 | 2 | 26 | Lower Handle | 1 |
8 | Hydraulic Unit Adaptor | 1 | 27 | Upper Handle | 1 |
9 | Lift Arm | 1 | 28 | Nut M16 | 2 |
10 | Saddle | 1 | 29 | Washer 16 | 4 |
11 | Saddle Screw | 1 | 30 | Tie Rod | 2 |
12 | Retaining Ring Ø25 | 2 | 31 | Washer 8 | 4 |
13 | Lift Arm Shaft | 1 | 32 | Screw M8x20 | 4 |
14 | Pin 4x45 | 1 | 33 | Screw M10x20 | 4 |
15 | Spring | 2 | 34 | Washer 10 | 4 |
16 | Hydraulic Unit | 1 | 35 | Rear Caster | 2 |
17 | Bolt | 2 | 36 | Cover Plate | 1 |
18 | Washer 18 | 2 | 37 | Screw M5x12 | 4 |
19 | Set Screw | 1 | 38 | Nut M16 | 2 |
Record Product's 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 792363566247 when ordering parts.
Assembly Diagram Description
The assembly diagram shows an exploded view of the Pittsburgh 3 Ton Heavy Duty Floor Jack, illustrating how the various parts fit together. Key components visible include the frame, lift arm, saddle, hydraulic unit, handle assembly (upper and lower handles, handle socket, set screw), wheels (front and rear casters), and numerous fasteners such as bolts, nuts, washers, and retaining rings, all labeled with corresponding part numbers from the Parts List.
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. Harbor Freight Tools 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 their 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 Harbor Freight Tools with transportation charges prepaid. Proof of purchase date and an explanation of the complaint must accompany the merchandise. If Harbor Freight Tools' inspection verifies the defect, they will either repair or replace the product at their election or may elect to refund the purchase price if they cannot readily and quickly provide a replacement. Repaired products will be returned at Harbor Freight Tools' expense, but if it is determined there is no defect, or that the defect resulted from causes not within the scope of the warranty, then the customer 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.
PITTSBURGH
26541 Agoura Road • Calabasas, CA 91302 • 1-888-866-5797