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Page 6 

For technical questions, please call 1-800-444-3353.

 

Floor Jacks

 

lowering

Remove all tools, parts, etc. from 

1. 

under the vehicle.
Position the Saddle under the lifting 

2. 

point. Turn the Release Screw firmly 

clockwise

, and pump the Handle to 

raise the vehicle slightly above the 

saddle(s) of the jack stands. Then, 

lower the Saddle to its lowest position 

and remove jack stand(s).

Slowly 

3. 

turn the Handle 

counterclock-

wise

 (never more than two full turns) 

to lower the vehicle onto the ground.
Lower the Jack completely.  Then, 

4. 

store in a safe, dry location out of 

reach of children.

inSPeCTiOn, mainTenanCe, 

anD CleaninG

  Procedures not specifically 

explained in this manual 

must be performed only by a 

qualified technician.

 

TO PREvENT 

SERIOUS INJURY 

FROm TOOl FailuRe:

 

Do not use damaged 

equipment.  

If abnormal noise 

or vibration occurs, have the 

problem corrected before 

further use.

Before each use, 

1. 

inspect the gen-

eral condition of the Jack.  Check for 

broken, cracked, or bent parts, loose 

or missing parts, and any condition 

that may affect the proper operation 

of the product.  If a problem occurs, 

have the problem corrected before 

further use.

 

Do not use damaged equipment.
Before each use, thoroughly test 

2. 

the Jack for proper operation prior 

to its actual use.  if the Jack ap

-

pears 

not

 to be working properly, 

follow 

Bleeding

 instructions on 

page 4.

Change the hydraulic oil at least 

3. 

once every three years:

With the Jack fully lowered, remove 

a. 

the Oil Filler Plug on the side of the 

Housing.
Tip the Jack to allow the old hydrau-

b. 

lic oil to drain out of the Housing 

completely, and dispose of the old 

hydraulic oil in accordance with local 

regulations.
With the Jack upright, completely 

c. 

fill the Housing with a high quality 

hydraulic oil (not included) until the 

oil just begins to run out of the Oil 

Fill Hole.
Open the valve Release Screw and 

d. 

pump the Handle to drive oil into 

pump passanges as well  to bleed 

air from the system. 
Reinstall the Oil Filler Plug.

e. 

Wipe dry with a clean cloth. Then, 

4. 

store the Jack in a safe, dry location 

out of reach of children and other 

non-authorized people.

Summary of Contents for 42820

Page 1: ...aterial before using this product Failure to do so can result in serious injury Save this manual Copyright 2009 by Harbor Freight Tools All rights reserved No portion of this manual or any artwork con...

Page 2: ...t in death or serious injury CAUTION used with the safety alert symbol indicates a hazardous situation which if not avoided could result in minor or moderate injury NOTICE is used to address practices...

Page 3: ...or failure to follow maintenance instructions may create a risk of injury and may void any ap plicable warranty Maintain labels and nameplates on 20 the Jack These carry important information If unrea...

Page 4: ...s air Oil Fill Plug 1 Remove the cover plate some mod els and the Oil Filler Plug under neath See Photo above Release Screw Pivot Assembly 2 For models with a separate Re lease Screw shown above Inser...

Page 5: ...vehicle lifting point Note The Jack should be positioned at 90 to the vehicle s lifting point to ensure the Jack s Saddle and vehicle lifting point are in alignment If not reposition the Jack before...

Page 6: ...r broken cracked or bent parts loose or missing parts and any condition that may affect the proper operation of the product If a problem occurs have the problem corrected before further use Do not use...

Page 7: ...MS PROBABLE Solution Make certain that the jack is not supporting a load while attempting a solution Jack will not lift at its weight capacity Saddle lowers under load Pump stroke feels spongy Saddle...

Page 8: ...n 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 transportat...

Page 9: ...ecure the handle in place Note Some parts are listed and shown for illustration purposes only and are not avail able individually as replacement parts PLEASE READ THE FOLLOWING CAREFULLY THE MANUFACTU...

Page 10: ...O Ring 1 29 Dirt Proof Boot 1 30 Pump Plunger 1 31 Pin Rod 2 32 Washer 2 33 Torsion Spring set of 2 1 34 M10 Nut 1 35 Handle Socket 1 36 M10 x 50 Bolt 1 37 E clip 10 38 Pedal 1 Part Description Q ty 3...

Page 11: ...SKU 42820 For technical questions please call 1 800 444 3353 Assembly Diagram...

Page 12: ...18 mm 13 8mm 12 mm 9 13 mm O ring Central Hydraulics 2 5 ton floor jack 42820 3 44 mm...

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