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.23b

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Email our technical support at: productsupport@harborfreight.com

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 rights reserved.
No portion of this manual or any artwork contained herein may be reproduced in Read this material before using this product.
any shape or form without the express written consent of Harbor Freight Tools. Failure to do so can result in serious injury.
Diagrams within this manual may not be drawn proportionally. Due to continuing SAVE THIS MANUAL.
improvements, actual product may differ slightly from the product described herein.
Tools required for assembly and service may not be included.
 Specifications

All tires from 8 in. to Light Truck Tires

Tire
(8 in. x 16 in.)
Capacity
Flotation Tires: Up to 12.5L16
1 Bead Breaker Handle
Includes
37 in. Long Mount/Demount Tool

IMPORTANT SAFETY INFORMATION

1. Do not exceed max. tire 8. Deflate tire before use. Keep tire’s valve
capacities. Do not use on standard stem uncovered during use to allow
tires exceeding 16" or on flotation any remaining air to flow out of tire.
tire exceeding size 12.5L16.
9. Lubricate Breaker Handle (7) when
2. CAUTION! Do not use on tires with removing tire from rim; failure to
high-end rims. Tire removal and do so can lead to tire damage.
installation can result in scratches
and slight marring on rims. 10. Keep work area clean and well lit.

3. Wear ANSI-approved safety goggles 11. Keep bystanders out of

and heavy-duty work gloves during the area during use.
assembly, mounting and use. 12. Do not use when tired or when
4. Do not modify Tire Changer to perform under the influence of drugs,
tasks for which it was not designed. medication or alcohol.

5. Use only with accessories 13. This product is not a toy. Do not allow
included with the Tire Changer. children to play with or near this item.
6. Do not use without mounting to floor. 14. Inspect before every use; do not use
Mount only to a secure, level surface if parts are loose or damaged.
able to support weight of Manual 15. Maintain product labels and
Tire Changer and tire assembly. nameplates. These carry
7. Verify that mounting surface has important safety information.
no hidden utility lines before If unreadable or missing, contact
drilling or driving screws. Harbor Freight Tools for a replacement.

Page 2 For technical questions, please call 1-888-866-5797. 58731

 Assembly/Mounting Instructions
Read the ENTIRE IMPORTANT NOTE: Assembly of the Base
SAFETY INFORMATION units (9, 13) to the Center Post (1) will
section at the beginning of this be easier if done on a worktable.
document including all text 2. Set the bottom of the Center Post
under subheadings therein diagonally across the middle of the
before set up or use of Post Base. See Figure 2, below.
this product.
NOTE: Make sure to align the Center
1. The Tire Changer will require Post with the Post Base so that the
some assembly after unpacking. Center Post’s bracket faces the
See the assembly components longer end of the Post Base.
in Figure 1, below.
3. Fasten Center Post and Post Base
Mount/ together using the Hex Bolts (6),
Center Post (1) Washers (11), and Nuts (12).
Demount
See Figure 2, below.
Bar (14)
Center Post (1)
Post Base (13)

Side Bases (9)

Post Base (13)

Bead Hex
Breaker Bolts (6),
Handle (7) Washers
(11) and
Nuts (12)

Hex Bolts (6),

Washers (11)
Clevis
and Nuts (12)
Bead Breaker Pins (5)
Shoe (10) Figure 2
R-Clips (8)
Figure 1

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4. Set each of the Side Bases (9) along 9. If necessary, level the Tire Changer on
either side of the Post Base until the the floor surface using a carpenter’s
holes align. Fasten together using level and steel shims (neither included).
the Hex Bolts (6), Washers (11), and 10. Use a hammer (not included) to
Nuts (12). See Figure 3, below. tap the four anchors through the
four mounting holes in the base of
Center the Tire Changer and into the floor
Post (1) surface. Continue tapping the anchors
until their washers rest against
the base of the Tire Changer.
11. Firmly tighten the four anchors
to secure the Tire Changer
Side to the mounting surface.
Base (9) 12. Place the end of the Bead Breaker
Handle (7) in the bracket on the
side of the Center Post until the
hole on the Handle’s end aligns with
Side
top or bottom holes of the bracket
Base (9) (depending on the size of the tire).
Figure 3 13. Slide a Clevis Pin (5) through
the bracket and Bead Breaker
5. At this point, the assembled base
Handle, securing it using the
should be mounted to the selected
R-Clip (8). See Figure 4, below.
floor surface (such as a wood pallet
or concrete floor) using the 7/16" Bead Breaker
mounting holes at the ends of the Handle (7)
Side Bases and the Post Base.
NOTE: The floor surface should
be at least 4 inches in depth.
6. With assistance, move the Tire
Changer to the selected location.
Use the four 7/16" mounting holes
as templates to mark four holes
on the mounting surface. Clevis
7. Drill four holes in the floor surface equal Pin (5)
to the length of the four anchors (not
included) to secure the Tire Changer. R-Clip (8)
Figure 4
8. Set the Tire Changer back on the floor
surface and align its four mounting
holes at its base with the four pre-
drilled holes in the floor surface.

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14. Slide the end slots of Bead Breaker 15. Once fully assembled and mounted to
Shoe (10) over the mounting holes the floor, the assembled Tire Changer
along the middle of the Bead Breaker will look as it does in Figure 6, below.
Handle. Align with the end or middle NOTE: Tire is not included.
holes (depending on which tire size, the
closest hole to the Center Post being for
smaller tires). Secure in place using the
other Clevis Pin and R-Clip.
See Figure 5, below.

Bead Breaker
Bead Breaker
Shoe (10)
Handle (7)

Clevis
Pin (5)
Figure 5 Figure 6

58731 For technical questions, please call 1-888-866-5797. Page 5

 Operation
Breaking the Tire Bead
1. Once the tire is deflated, apply bead 7. Lift Bead Breaker Handle up,
oil (not included) to tire bead. flip tire over and reposition
tire against mounting tab.
NOTE: Tire removal and installation will
be much easier when using bead oil. 8. Set Bead Breaker Shoe against the
edge of tire rim and push down on
2. Set Tire down on the longer end of the
Bead Breaker Handle, removing bead
Post Base (the end with the mounting
from rim. See Figure 8, below.
tab). Position the tire so that the
rim is set against the mounting tab,
Figure 8
which will keep the tire in place.
NOTE: Make sure the tire’s
valve stem is facing up.
3. Set the Bead Breaker Shoe against the
edge of tire rim. See Figure 7, below.
4. Insert Mounting/Demounting Bar into
Bead Breaker Handle. Once inserted,
push down on Bead Breaker Handle,
allowing the Bead Breaker Shoe to push
tire bead off of rim. See Figure 7, below.

Figure 7

9. Raise Bead Breaker Shoe and slide tire

around. Push down on Bead Breaker
Handle, removing bead from rim.
10. Lift Bead Handle up and remove
tire from Post Base.
11. Remove Post Cap (2) and Ring Post (4)
from top of Center Post.
12. Set tire onto the Center Post.
NOTE: Make sure tire’s valve stem is
5. Lift Bead Breaker Handle up and facing up and Lug Pin (3) is sticking
slide tire around so that Bead up through lug hole of rim.
Breaker Shoe can be set against NOTE: Use rim protector pad on outer
the opposite end of rim. face of rim to reduce scratching.
6. Set the Bead Breaker Shoe against 13. Thread Ring Post over Center Post
the edge of tire rim. Push down with tapered side going into wheel
on Bead Breaker Handle, allowing hub. See Figure 9, below.
the Bead Breaker Shoe to push
other end of tire bead off of rim.

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14. Thread Post Cap onto Center Post. 18. Once bead on outer side of tire
This will tighten Ring Post, locking is separated from rim, pull tire
tire into place. See Figure 9, below. up with free hand and push Bar
down so it is against bead on
Figure 9
inner rim. See Figure 12, below.
Figure 12

15. To tighten Post Cap, place flat end

of Mount/Demount Bar through top
of Post Cap and pull on Mount/
Demount Bar. See Figure 10, below. 19. Using Post Cap as leverage,
Figure 10 pull Bar around, separating
inner bead from tire rim.
NOTE: You may need to hold onto Post Cap
with your free hand for added leverage.
See Figure 13, below.

Figure 13

16. Remove Mount/Demount Bar

from Post Cap and set end
against bead. Push down on Bar,
forcing bead away from rim.
17. Slide bar down and, using the Post Cap
as leverage, pull the Bar around,
continuing to separate the bead 20. Continue pulling Bar around tire until
from rim. See Figure 11, below. bead is fully separated from rim.
Figure 11 Then lift tire off of Center Post.
21. If desired, unthread Post Cap
and Ring Post and remove
rim from Tire Changer.

58731 For technical questions, please call 1-888-866-5797. Page 7

Mounting Tire Onto Rim
1. Set rim on Center Post and lock 5. Once inner side of tire is mounted
into place using the Ring Post and to rim, push down on tire again until
Post Cap (if not already done). one side of outer bead is under rim.
2. Set tire on rim and push down 6. Remove Bar and switch ends, so that
on opposite ends of the tire. hook side is pressed against bead.
See Figure 14, below. 7. Push Bar down so that hook
end wedges bead under rim.
Figure 14 See Figure 16, below.

Figure 16

NOTE: Be sure to apply bead

lubricant before tire mounting.
3. Stick Mounting/Demounting Bar through
tire (with flat edge facing down) to
help wedge bead back behind rim. NOTE: Be sure to apply more
4. Push down on tire with free hand as bead lubricant, if needed.
you work bead behind rim. If needed 8. Continue to work around rim until
push Bar along Center Post for added tire mounts over edge of bead.
leverage. See Figure 15, below.
IMPORTANT: If tire bead starts to seat
during mounting, the tire will need to stretch
Figure 15
more and will be more difficult to mount.
To prevent this, push down on tire with your
free hand so it doesn’t seat on the upper
edge of rim during mounting.
The unseated tire bead must sit in the
center recess of the rim for best results.

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9. Depending on the flexibility of rubber CAUTION! Do not use the bar to hammer
(and the amount of bead lubricant on the side of the tire during mounting.
used), you may switch the Bar around Doing so can damage the tire.
and use the flat edge of Bar to wedge 10. Once tire is properly mounted
the last sections of the bead under onto the rim, inflate tire to the PSI
the rim. See Figure 17, below. recommended in tire’s owner manual.

Figure 17 WARNING! TO PREVENT SERIOUS

INJURY: Do not over-inflate tire.
11. WARNING! TO PREVENT SERIOUS
INJURY: Check for any leaks
and balance tire before putting
inflated tire back onto vehicle.
NOTE: This Tire Changer works
best with standard sized tires.
For changing smaller tires, use the
Mini‑Tire Changer (sold separately).

Maintenance
1. After each use, wipe any excess 2. Regularly inspect Tire Changer to
bead oil off of Tire Changer. ensure that all connections are secure.

58731 For technical questions, please call 1-888-866-5797. Page 9

 Parts List and Diagram
PLEASE READ THE FOLLOWING CAREFULLY

THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS

LIST AND ASSEMBLY DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL
ONLY. NEITHER THE MANUFACTURER OR 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.

Parts List

Part Description Qty.

1 Center Post 1
2 Post Cap 1
3 Lug Pin 1
4 Ring Post 1
5 Clevis Pin, 7/16" 2
6 Bolt, 3/8" x 16 x 1" 4
7 Bead Breaker Handle 1
8 R-Clip 2
9 Side Base 2
10 Bead Breaker Shoe 1
11 Lock Washer, 3/8 4
12 Nut, 3/8" x 16 4
13 Post Base 1
14 Mount/Demount Bar 1

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. Specify UPC 193175447777 when ordering parts.

Page 10 For technical questions, please call 1-888-866-5797. 58731

Assembly Diagram

5 7

6 6

6
6
14

13 8

8
9 10

11 11
12 12
9
11
11
12 12

58731 For technical questions, please call 1-888-866-5797. Page 11

 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.

26677 Agoura Road • Calabasas, CA 91302 • 1-888-866-5797