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

Floor Jack 

        

Operation

  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.

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.

1.  Turn the Handle counterclockwise to lower the Jack.   

Once the Jack is fully lowered, turn the 

Handle firmly clockwise to close it.

2.  Carefully position the Saddle of the Jack under the 

vehicle manufacturer’s recommended lifting point. 

(See vehicle manufacturer’s owner’s manual 

for location of frame lifting point.)

3.  Pump the Handle until the top of the Jack’s Saddle 

has nearly reached the vehicle lifting point. Position 

the Saddle directly under the vehicle’s lifting point.

4.  To lift the vehicle, pump the Handle of 

the Jack. Use smooth, full strokes.

5.  Once the vehicle is raised, slide a jack stand of 

appropriate capacity (not included) under a proper 

lifting point referred 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 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 

support one end only. Failure to do so may result 

in the load suddenly falling, which may cause 

personal serious injury and/or property damage.

6.  Center the vehicle’s lifting point(s) on the saddle of 

the jack stand(s).  Set the jack stand(s) to the same 

height according to the manufacturer’s instructions, 

making sure that they lock securely into position.

7.  Slowly turn the Handle counterclockwise to lower 

the vehicle onto the saddle(s) of the jack stand(s). 

Then, turn the Handle firmly clockwise to close it.

Lowering

1.  Carefully remove all tools, parts, etc. 

from under the vehicle.

2.  Position the Saddle under the lifting point. 

Turn the Handle firmly clockwise and raise 

load high enough to clear the jack stands, 

then carefully remove jack stands.

3.  Slowly turn the Handle counterclockwise 

(never more than 1/2 full turn) to lower 

the vehicle onto the ground.

4.  Lower the Jack completely.  Then, store in a 

safe, dry location out of reach of children.

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...

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