Daytona DS300AR Assembly instructions

Visit our website at: http://www.harborfreight.com
Email our technical support at: [email protected] 56687
Owner’s Manual & Safety Instructions
Save This Manual Keep this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the
back of the manual near the assembly diagram (or month and year of purchase if product has no number).
Keep this manual and the receipt in a safe and dry place for future reference. 20c
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 manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein.
Tools required for assembly an d se rv ic e may n ot b e in cl uded.
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.

Page 2 For technical questions, please call 1-888-866-5797. Item 56687
Specifications
Capacity 3 Tons (6,000 lb.)*
Height Range (Approximate) 10.4" – 15.4"
*Evenly distributed across two Jack Stands.
Important Safety Information
Failure to heed these markings may result in personal injury and/or property damage.
1. Study, understand, and follow all instructions
before operating this device.
2. Do not exceed rated capacity.
3. Use only on hard, level surfaces.
4. Center load on saddle.
5. Use as matched pair to support
one end of a vehicle only.
6. Wear ANSI-approved safety goggles and
heavy-duty work gloves during use.
7. Do not use for aircraft purposes.
8. Support vehicle only at manufacturer-
recommended locations.
9. Inspect before every use; do not
use if parts loose or damaged.
10. Examine Jack Stands for cracks or damage
before each use. Do not use if even a minor crack,
bend or other damage/deformation appears.
Discard Jack Stand if damaged or deformed.
11. Keep work area clean.
Cluttered areas invite injuries.
12. Observe work area conditions.
Keep work area well lighted.
13. Keep children away. Children must
never be allowed in the work area.
14. Store idle equipment. When not in use, tools must
be stored in a dry location to inhibit rust. Always
lock up tools and keep out of reach of children.
15. There are certain applications for which this tool was
designed. Do not modify this tool and do not use this
tool for a purpose for which it was not intended.
16. Dress properly. Do not wear loose clothing or jewelry
as they can be caught in moving parts. Protective,
electrically non-conductive clothes and non-skid
footwear are recommended when working. Wear
restrictive hair covering to contain long hair.
17. Maintain tools with care. Keep tools clean for
better and safer performance. Follow instructions
for lubricating and changing accessories.
18. Stay alert. Watch what you are doing, use common
sense. Do not operate any tool when you are tired.
19. Do not operate tool if under the influence of
alcohol or drugs. Read warning labels on
prescriptions to determine if your judgment
or reflexes are impaired while taking drugs. If
there is any doubt, do not operate the tool.
20. Only use on proper surface. Only use the Jack
Stands on a dry, level, flat surface, which is free
of grease or debris. The surface to be used
must be capable of supporting the combined
weight of the vehicle and the Jack Stands.
21. The warnings, precautions, and instructions
discussed in this manual cannot cover all
possible conditions and situations that may occur.
The operator must understand that common sense
and caution are factors, which cannot be built into
this product, but must be supplied by the operator.
Assembly
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.
Note: For additional information regarding the parts listed in the following pages,
refer to the Assembly Diagram near the end of this manual.
1. Loosen the Base Screw on the Base until it
will not interfere with Sleeve installation.
2. Insert a Sleeve into the Base. Make sure it
seats completely to the bottom of the Base.
3. Use a wrench or socket (sold separately)
to fully tighten the Base Screw.
4. Carefully lower the Post into the Sleeve.
5. Repeat previous steps with the other Jack Stand.

Page 3
For technical questions, please call 1-888-866-5797.
Item 56687
Operating Instructions
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.
WARNING! TO PREVENT SERIOUS INJURY: Use as matched pair to support one end of a vehicle only.
Supporting a Vehicle
1. Make sure the vehicle does not exceed the capacity
of the Jack Stands. Note: Check that the weight
is evenly distributed between the Jack Stands.
You must evenly distribute the weight or the
Jack Stands may fail, causing severe injury
or death. Only apply the load vertically.
WARNING! TO PREVENT SERIOUS INJURY: If a
vehicle drops on the Jack Stands (even if it is under
the weight capacity limit), the principle of “dynamic
loading” takes affect. The force of the weight
falling may cause the Jack Stands to fail. A vehicle
weighing much less than the Jack capacity may
cause the Jack Stands to fail if dropped on them.
Note: Do not move the Handle when the Jack
Stands are supporting a vehicle. The shear pin is
designed to shear in the event the user attempts to
move the Handle while supporting weight. If the pin
shears, do not use the Jack Stands again until the
shear pin is replaced by a qualified technician.
2. Examine Jack Stands for cracks or damage before
each use. Do not use if even a minor crack,
bend, or other damage/deformation appears.
Discard Jack Stand if damaged or deformed.
3. Remove the Pin on each Jack Stand
to completely lower the Post.
4. If your are raising only one end of the vehicle,
block the tires that remain on the ground.
5. Following the instructions in your floor jack
manual, raise your vehicle to just above the
minimum height of your Jack Stands.
6. Slide your Jack Stands to the proper position points
referred to in the vehicle owner’s manual. Make sure
the Jack Stands are on the same point on each side
of the vehicle. Move the Handle up, and raise the
Jack Stands until they are just below the jack contact
point on the vehicle. Align the holes in the Sleeve
with the hole in the Post and insert the Pin all the way
through. Center the load on the Saddle of the Post.
Release the Handle so that ratchet catches on the
Pawl. Gently lower the vehicle with the floor jack.
WARNING! TO PREVENT SERIOUS INJURY:
Set both the Jack Stands to the same height.
7. Determine if the vehicle is stable. If not, raise
the vehicle and reposition the Jack Stands.
Removing the Jack Stands
1. Raise the vehicle with a floor jack to take
the load off of the Jack Stands.
2. Raise the Handle on the Jack
Stands and lower the Posts.
3. Remove the Jack Stands. Use the floor jack
to safely lower the vehicle to the ground.
WARNING! TO PREVENT SERIOUS INJURY:
Do not use Jack Stands as a permanent stand for
the vehicle. Use them only while making repairs,
then immediately lower vehicle to the ground.
Maintenance and Servicing
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.
1. Periodically clean the bottom of the Bases and
top of Posts of any dirt, grease, or debris.
2. Before each use, inspect the general 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. Do not use damaged equipment.
Discard Jack Stand if damaged or deformed.

Parts List and Assembly Diagram
Part Description Qty
1 Post 2
2Pin 2
3Sleeve 2
4Base 2
5Screw M8 x 80 2
6Locknut M8 2
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 not available
individually as replacement parts.
1
2
4
3
5
6
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN THIS MANUAL AS A REFERENCE
TOOL ONLY. NEITHER THE MANUFACTURER NOR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF
ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE OR
SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR
EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND
LICENSED TECHNICIANS AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS
OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER
INSTALLATION OF REPLACEMENT PARTS THERETO.
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.
26541 Agoura Road • Calabasas, CA 91302 • [phone]