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For technical questions, please call 1-888-866-5797.

Item 64783 

        

Set Up

  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.

Removing Shipping Clip

CAUTION! The Handle socket may be held down by a clip under tension.  Wear ANSI-
approved safety goggles before freeing Handle socket.  Remove clip carefully. 

A wire clip holds the Handle Socket in position during shipment.  This helps prevents shipping damage.  To remove it:

1.  Press down on the Handle Socket to 

relieve tension on the wire clip.

2.  Disconnect the wire clip legs from the bar.

3.  Slowly raise the Handle Socket 

until tension is released.

4.  Remove the wire clip.

Attaching the Handle

1.  Slide the Upper Handle into the Lower Handle.  

Line the Button on the Lower Handle up with the 
hole in the Upper Handle until it clicks into place.

2.  Pull on the Handle Release and insert the grooved 

end of the Handle into the Handle Socket.

3.  Let go of the Handle Release.  Gently pull up 

on the Handle to make 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.  Turn the Handle counterclockwise to open the valve.

5.  Pump the Handle up and down quickly 

10-15 times to force air from the system.

6.  Replace the Fill Plug, close the 

Cover Plate, and reinstall the Screws.

Fill Plug

Safety Valve Covers  

Do not open or adjust.

Figure A:  Hydraulic Unit

Adding Oil

NOTICE:

 To prevent damage and premature wear, 

use only 22 viscosity, non-detergent hydraulic jack oil.

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.

2.  Remove the Fill Plug on top of the Cylinder.

3.  Add non-detergent 22 weight hydraulic jack oil 

into the Fill Plug hole slowly until the oil level just 
reaches the top of the Piston inside the Cylinder.

4.  Replace the Fill Plug, close the 

Cover Plate, and reinstall the Screws.

Fill Plug

Cylinder 

Piston

Oil

FILL LEVEL

Figure B:  Fill Level

Summary of Contents for DS300SG

Page 1: ...ference 18h 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 2018 by Harbor Freight Tools A...

Page 2: ...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...

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 wh...

Page 4: ...y 3 Tons Weight Capacity lb 6 000 Maximum Height in 18 25 Minimum Height in 5 Handle Length in 45 25 Front Wheel Diameter in 3 15 Front Wheel Width in 1 89 Rear Caster Diameter in 2 44 Rear Caster Wid...

Page 5: ...Page 5 For technical questions please call 1 888 866 5797 Item 64783 Overview Saddle Handle Foam Bumper Handle Socket Handle Release Lift Arm...

Page 6: ...e 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 Remo...

Page 7: ...on 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...

Page 8: ...n 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...

Page 9: ...le 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 Releas...

Page 10: ...ar 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 T...

Page 11: ...64783 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 no...

Page 12: ...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 IMPL...

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