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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.

Summary of Contents for DS300S

Page 1: ...eference 22h 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 ma...

Page 2: ...t use if parts are loose or damaged or if leaking hydraulic fluid 17 Do not use for aircraft purposes 18 Do not use any objects such as blocks of wood in between Saddle Pad or Saddle and lifting point Objects placed on the Saddle will reduce the stability of the Jack and could allow the vehicle to slip off the Saddle and fall 19 The warnings precautions and instructions discussed in this manual ca...

Page 3: ... 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 in...

Page 4: ...ity 3 Tons Weight Capacity lb 6 000 Maximum Height in 17 875 Minimum Height in 5 Handle Length in 45 Front Wheel Diameter in 3 15 Front Wheel Width in 1 89 Rear Caster Diameter in 2 44 Rear Caster Width in 0 98 Saddle Pad Size in 3 27 x 3 27 sq Hydraulic Oil non detergent 22 weight Weight lb 70 5 ...

Page 5: ...Page 5 For technical questions please call 1 888 866 5797 Item 64200 Overview Saddle Handle Foam Bumper Handle Socket Handle Release Lift Arm ...

Page 6: ...ke sure that it is secure Bleeding Trapped Air 1 With the Jack fully lowered remove both Screws on the end of the Cover Plate that is closer to the Saddle Swing the Cover Plate open See Figure A 2 Remove the Fill Plug on top of the Cylinder Check that the oil level inside the Cylinder is at the top of the Piston See Figure B 3 Insert the Handle into the Handle Socket to operate the Release Valve 4...

Page 7: ...them at the same point on each side of the vehicle WARNING The rated capacity of jack stands is per pair not the individual capacities combined unless specifically noted on the product by the jack stand manufacturer Do not exceed rated jack stand capacity Ensure that the vehicle support points are fully seated in the saddle of both jack stands Use a matched pair of jack stands per vehicle to suppo...

Page 8: ...in a safe dry location out of reach of children and other non authorized people NOTICE Storing the Jack in a humid area or exposing it to corrosive vapor voids the warranty 3 Weekly Jack Lubrication a Lubricate according to the below steps using only general purpose lithium grease b Inject grease into each of the grease fittings c Lubricate the linkages and pivot points lightly Note Improper or in...

Page 9: ...attempting a solution Jack will not lift at capacity Saddle lowers under load Pump stroke feels spongy or Saddle does not lift all the way Handle moves up when Jack under load Fill Plug leaking oil or Jack will not lower without a load X X Check that Release Valve is fully closed Bleed trapped air from the hydraulics X X X Valves may be blocked and may not close fully To flush the valves 1 Lower t...

Page 10: ...ear Caster 2 36 Cover Plate 1 37 Screw M5X12 4 38 Nut M16 2 39 Saddle Pad 1 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 PRODUC...

Page 11: ... 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 193175358769 when ordering parts Assembly Diagram ...

Page 12: ...lusion 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 expl...

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