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Owner's Manual & Safety Instructions
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operating, inspection, maintenance and cleaning procedures. Write the product's serial number in the
back of the manual (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.
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
2022 by Harbor Freight Tools
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.
Keep this manual for the safety warnings and precautions, assembly,
Visit our website at: http://www.harborfreight.com
®
. All rights reserved.
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
22g
64780-Black
56643-Blue
64240-Orange
64784-Green
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Table of Contents
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Summarization of Contents
Important Safety Information
General Safety Precautions
Follow all instructions, use on level surfaces, support load, and wear safety gear.
Operational Safety Guidelines
Lift only specified areas, do not alter product, never work under unsupported load.
Pre-Operation Checks
Inspect for damage, leaks, loose parts before use. Test for proper operation.
Warning Symbols and Definitions
Safety Alert Symbol
Alerts to potential personal injury hazards. Obey messages to avoid injury or death.
Danger Hazard
Indicates a hazardous situation which, if not avoided, will result in death or serious injury.
Warning Hazard
Indicates a hazardous situation which, if not avoided, could result in death or serious injury.
Caution Hazard
Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
Notice - Non-Injury Practices
Addresses practices not related to personal injury.
Set Up Procedures
Removing Shipping Block
Safely remove the plastic block holding the handle socket under tension.
Attaching the Handle
Connect the upper and lower handle sections securely.
Bleeding Trapped Air
Procedure to remove air from the hydraulic system for proper operation.
Adding Hydraulic Oil
Instructions for filling the hydraulic system with non-detergent 22 weight oil.
Operation Guide
Lifting Procedure
Steps for safely lifting a vehicle using the floor jack and jack stands.
Lowering Procedure
Steps for safely lowering a vehicle and storing the jack.
Maintenance and Servicing
Pre-Use Inspection
Check for leaks, loose parts, misalignment, or damage before each use.
Post-Use Care and Storage
Wipe dry, store in a safe, dry location away from corrosive vapors.
Weekly Lubrication
Lubricate grease fittings, linkages, and pivot points with general purpose lithium grease.
Hydraulic Oil Change
Change hydraulic oil every three years, following adding and bleeding procedures.
Troubleshooting Common Issues
Jack Fails to Lift or Lowers
Check release valve, bleed air, or check oil level if jack won't lift or lowers.
Spongy Handle Stroke
Address spongy pump stroke by bleeding trapped air from hydraulics.
Handle Movement Issues
Resolve issues with handle movement by flushing valves or checking oil levels.
Oil Leaks or Lowering Without Load
Inspect fill plug and oil level for leaks or uncontrolled lowering.
Parts List and Diagram
Component Identification
Detailed list of all parts included with the floor jack.
Assembly Diagram Reference
Visual guide showing the assembly of the floor jack components.
Limited 90 Day Warranty
Warranty Coverage
Details of the 90-day warranty against defects in materials and workmanship.
Warranty Exclusions
Conditions not covered by the warranty, such as misuse or lack of maintenance.
Warranty Claim Process
Procedure for returning products or parts for warranty service.
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