background image

Page 6

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

Floor Jack 

        

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 Block

CAUTION! The Handle Socket will be held down by a plastic block under tension. Wear  

ANSI-approved safety goggles before freeing Handle Socket.  Hold Handle Socket down while 

removing block.  After removal, carefully swing Handle Socket up until tension is released. 

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 DS400S

Page 1: ...nce 22j 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 All r...

Page 2: ...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...

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: ...pacity lb 8 000 Maximum Height in 20 562 Minimum Height in 4 125 Handle Length in 49 Front Wheel Diameter in 3 27 Front Wheel Width in 1 97 Rear Caster Diameter in 2 56 Rear Caster Width in 1 38 Saddl...

Page 5: ...Page 5 For technical questions please call 1 888 866 5797 Floor Jack Overview Saddle Pad Saddle Handle Foam Bumper Handle Socket Handle Release behind Socket Contoured Lift Arm...

Page 6: ...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...

Page 7: ...to in the vehicle owner s manual Always use two jack stands position them at the same point on each side of the vehicle WARNING The rated capacity of jack stands is per pair not the individual capaci...

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: ...Ring 18 2 34 Zerk Fitting 1 35 Lift Arm 1 36 Saddle 1 37 Saddle Screw 1 38 Handle Bumper 1 39 Saddle Pad 1 PLEASE READ THE FOLLOWING CAREFULLY THE MANUFACTURER AND OR DISTRIBUTOR HAS PROVIDED THE PAR...

Page 11: ...l 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 Parts may not be intercha...

Page 12: ...usion 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 INCLU...

Reviews: