Dannmar DT-50 User manual

DT-50A with Assist Arm pictured above.
1645 Lemonwood Dr.
Santa Paula, CA 93060 USA
Tel: [phone]
Dannmar.com
Tire Changer
Installation and Operation Manual
Manual P/N 5900260 — Manual Revision A1 — December 2020
Model:
•DT-50
•DT-50A
Designed and engineered in Southern California, USA. Made in China.
⚠
DANGER
Read the entire contents of this manual before using this
product. Failure to follow the instructions and safety precautions in this
manual can result in serious injury or death. Make sure all other
operators also read this manual. Keep the manual near the product for
future reference. By proceeding with installation and operation,
you agree that you fully understand the contents of this manual
and assume full responsibility for product use.

Manual. Models DT-50 Swing-Arm Tire Changer (No Assist Tower) and DT-50A Swing-Arm Tire Changer (with
Assist Tower), Installation and Operation Manual, Manual P/N 5900260, Manual Revision A1, released December
2020.
Copyright. Copyright © 2020 by Dannmar Inc. All rights reserved. You may make copies of this document if you
agree that: you will give full attribution to Dannmar Inc., you will not make changes to the content, you do not gain
any rights to this content, and you will not use the copies for commercial purposes.
Trademarks. BendPak, the BendPak logo, Dannmar, and the Dannmar logo are registered trademarks of
BendPak Inc. All other company, product, and service names are used for identification only. All trademarks and
registered trademarks mentioned in this manual are the property of their respective owners.
Limitations. Every effort has been made to have complete and accurate instructions in this manual. However,
product updates, revisions, and/or changes may have occurred since this manual was published. BendPak
Dannmar reserves the right to change any information in this manual without incurring any obligation for
equipment previously or subsequently sold. BendPak Dannmar is not responsible for typographical errors in this
manual. You can always find the latest version of the manual for your product on the Dannmar website.
Warranty. The BendPak Dannmar warranty is more than a commitment to you: it is also a commitment to the
value of your new product. For full warranty details, contact your nearest BendPak Dannmar dealer or visit
Dannmar.com/support/warranty. Go to dannmar.com/support and fill out the online form to register
your product (be sure to click Submit).
Safety.Your new product was designed and manufactured with safety in mind. Your safety also depends on
proper training and thoughtful operation. Do not set up, operate, maintain, or repair the unit without reading and
understanding this manual and the labels on it;
do not use this product unless you can do so safely!
Owner Responsibility. In order to maintain your product properly and to ensure operator safety, it is the
responsibility of the product owner
to read and follow these instructions :
• Follow all installation, operation, and maintenance instructions.
• Make sure product installation and operation conforms to all applicable local, state, and federal codes, rules,
and regulations, such as state and federal OSHA regulations and electrical codes.
• Read and follow all safety instructions. Keep them readily available for operators.
• Make sure all operators are properly trained, know how to safely operate the unit, and are properly supervised.
• Do not operate the product until you are certain all parts are in place and operating correctly.
• Carefully inspect the product on a regular basis and perform all maintenance as required.
• Service and maintain the unit only with approved replacement parts.
• Keep the manual with the product and make sure all labels are clean and visible.
Only use this product if it can be used safely!
Unit Information. Enter the Model Number, Serial
Number, and the Date of Manufacture from the label
on your unit. This information is required for part or
warranty issues.
Model:
Serial:
Date of Manufacture:

DT-50 and DT-50A Tire Changer 3P/N 5900260 — Rev. A1 — Dec. 2020
Table of Contents
Introduction 3 Operation 24
Shipping Information 4 Maintenance 52
Safety Considerations 4 Troubleshooting 55
Components 6 Wiring Diagram 57
FAQs 8 Labels 58
Specifications 9 Parts 61
Installation Checklist 10 Maintenance Log 83
Installation 11
Introduction
This manual describes the installation and operation of the Dannmar Model DT-50 Swing-Arm Tire
Changer and the DT-50A Swing-Arm Tire Changer with Assist Arm. The DT-50 and DT-50A are used
for mounting and demounting automobile and light truck single-piece Tires. The DT-50A includes an
Assist Tower used to aid the operator in mounting and demounting tires.
Important: The DT-50 does
not include an Assist Tower or its tools.
More information about Dannmar products is available at Dannmar.com.
This manual is mandatory reading for all users of the DT-50 and DT-50A, including anyone
who sets up, operates, maintains, or repairs it.
You can always find the latest version of the manual for your product on the Dannmar
website.
⚠DANGER Be very careful when setting up, operating, maintaining, or repairing this equipment;
failure to do so could result in property damage, product damage, injury, or (in very
rare cases) death. Make sure only authorized personnel operate this equipment. All
repairs must be performed by an authorized technician. Do not make modifications
to the unit; this voids the warranty and increases the chances of injury or property
damage. Make sure to read and follow the instructions on the labels on the unit.
Keep this manual on or near the equipment so that anyone who uses or services it can read it.
Technical support and service for your Tire Changer is available from your distributor or by calling
Dannmar at [phone]. You may also call regarding parts replacement (please have the serial
number and model number of your unit available).

DT-50 and DT-50A Tire Changer 4P/N 5900260 — Rev. A1 — Dec. 2020
Shipping Information
Your equipment was carefully checked before shipping. Nevertheless, you should thoroughly inspect
the shipment
before you sign to acknowledge that you received it.
When you sign the bill of lading, it tells the carrier that the items on the invoice were received in good
condition.
Do not sign the bill of lading until after you have inspected the shipment. If
any of the items listed on the bill of lading are missing or damaged, do not accept the shipment until
the carrier makes a notation on the bill of lading that lists the missing or damaged goods.
If you discover missing or damaged goods after you receive the shipment and have signed the bill of
lading, notify the carrier at once and request the carrier to make an inspection. If the carrier will not
make an inspection, prepare a signed statement to the effect that you have notified the carrier (on a
specific date) and that the carrier has failed to comply with your request.
It is difficult to collect for loss or damage after you have given the carrier a signed bill of lading. If this
happens to you, file a claim with the carrier promptly. Support your claim with copies of the bill of
lading, freight bill, invoice, and photographs, if available. Our willingness to assist in helping you
process your claim does not make us responsible for collection of claims or replacement of lost or
damaged materials.
Safety Considerations
Read this manual carefully before using your new product. Do not set up or operate
the product until you are familiar with all operating instructions and warnings. Do not allow anyone else
to operate the product until they are also familiar with all operating instructions and warnings.
⚠WARNING There are many moving parts on a Tire Changer; keep clear of these moving parts
and the Tire being changed. In particular, when inflating a Tire, never lean over the
Tire; if it were to explode (which does happen), the force could injure or kill the
Operator or bystanders. During inflation, the Operator should be as far away from
the Tire as possible and all bystanders must be at least 30 feet away.
Safety Information
Please note the following:
•The product is a Tire Changer.
Use it only for its intended purpose.
•The product
must only be operated by authorized, trained, properly supervised personnel. Keep
children and untrained personnel at least 30 feet away from the product when it is in use.
•Always follow all applicable local, state, and federal codes, rules, and regulations, including (but not
limited to) OSHA standard 1910.177 (Servicing multi-piece and single piece rim Wheels).
•You
must wear OSHA-approved (publication 3151) Personal Protective Equipment at all times
when installing, using, maintaining, or repairing the Tire Changer. Leather gloves, steel-toed work
boots, eye protection, back belts, and hearing protection
are mandatory .
•Do not use the product while Tired or under the influence of drugs, alcohol, or medication.
•Do not use the product in the presence of cigarette smoke, dust, or flammable liquids or gases.
Use the product indoors in a well-ventilated area.
•Do not make any modifications to the product; this voids the warranty and increases the chances
of injury or property damage.
Do not modify any safety-related features in any way .

DT-50 and DT-50A Tire Changer 5P/N 5900260 — Rev. A1 — Dec. 2020
•Make sure all Operators read and understand this Installation and Operation Manual. Keep the
Manual near the Tire Changer at all times.
•Make a visual inspection of the Tire Changer every day. Do not use the product if you find any
missing or damaged parts. Instead, take the Tire Changer out of service, then contact an
authorized repair facility, your distributor, or Dannmar at [phone].
•Dannmar recommends making a
thorough inspection of the product once a month. Replace any
damaged or severely worn parts, decals, or warning labels.
Symbols
Following are the symbols that may be used in this Manual:
⚠DANGER Calls attention to a hazard that will result in death or injury.
⚠WARNING Calls attention to a hazard or unsafe practice that could result in death or injury.
⚠CAUTION Calls attention to a hazard or unsafe practice that could result in personal injury,
product damage, or property damage.
NOTICE Calls attention to a situation that, if not avoided, could result in product or property
damage.
Tip Calls attention to information that can help you use your product better.
Liability Information
Dannmar assumes no liability for damages resulting from:
• Use of the equipment for purposes other than those described in this Manual.
• Modifications to the equipment without prior, written permission from Dannmar.
• Damage to the equipment from external influences.
• Incorrect operation of the equipment.
•Injury or death caused by modifying, disabling, overriding or removing safety features.

DT-50 and DT-50A Tire Changer 6P/N 5900260 — Rev. A1 — Dec. 2020
Components
The following graphic identifies the main components of the Tire Changer.
Not all components visible in the photo above.

DT-50 and DT-50A Tire Changer 7P/N 5900260 — Rev. A1 — Dec. 2020
Tire Changer components include:
•Turntable. Holds and rotates the Wheel and has the Wheel Clamps built in to it.
•Wheel Clamps. Holds the Wheel in place, a part of the turntable.
•Tower. Supports the Swing Arm, and the Assist Tower.
•Swing Arm. Holds the Mount/Demount Head. Moves to the right up to 90°when not required.
Comes uninstalled.
•Assist Tower. DT-50A only. Holds additional tools that can be used during mounting and
demounting. Comes uninstalled.
•Mount/Demount Head. Mounts and demounts Tires. Located on the bottom of the Shaft. The
Tire Changer comes with an alloy steel Head. An optional plastic, non-marring Head is available.
•Shaft. Moves up and down; controls the position of the Mount/Demount Head.
•Shaft Cap. Moves the Shaft down to get the Mount/Demount Head to the desired height.
•Shaft Lock Handle. Locks the Swing Arm in the desired position.
•Swing Control. Stops the Swing Arm from moving past a specific point you choose.
•Bead Breaker. Breaks the Beads of Tires so you can demount them. Located on the right side
of the Tire Changer. Includes a Handle, a Blade, and a movable mechanism.
•Bead Lifting Tool. A hand tool used to pull the Bead edge of a Tire over the Mount/Demount
Head so the Tire can be demounted from the Wheel. Can also be used to hold down a Tire
Sidewall during Tire mounting.
•Turbo-Blast™ Bead Seater. Directs a burst of air pressure to help seat a difficult Bead. Never
point the Turbo-Blast Nozzle at people or things; use it with caution. Use it only to seat a difficult
Bead, nothing else. Has a Shut-off Valve near the base of the Turbo Blast Hose.
•Turbo-Blast™ Shut-Off Valve. Controls when the Turbo-Blast is On/Off. The Shut-Off Valve
must be turned off when the Turbo-Blast is not in use.
•Inflation Chuck with Inflation Gauge. Adds air to a Tire. The Inflation Gauge shows the
amount of air pressure currently in a Tire. Includes an Air Chuck with self-gripping clip and a
release valve button.
•Inflation Foot Pedal. Controls air flow to the Inflation Chuck and the Inflation Gauge. Not
Shown.
•Lube Bucket. Holds Tire lubricant. Use a lubricant approved by the Tire manufacturer for the Tire
being changed.
•Lube Brush. Applies the Tire lubricant.
•Bead Breaker Foot Pedal. Moves the Bead Breaker Blade in.
•Clamps In/Out Foot Pedal. Moves all four Wheel Clamps in or out.
•Turntable Foot Pedal. Rotates the Turntable. Press down and hold down to rotate the
Turntable clockwise, press up and hold up to rotate the Turntable counter-clockwise.
•Regulator/Filter. Controls the pressure of the incoming air supply and removes water from the
incoming air.
•Lubricator. Adds lubrication to the incoming air for tools on the Tire Changer that require it.
•Voltage Switch. Not shown. Switches the Tire Changer’s motor between 110 VAC and 220
VAC operation. Use with
caution (refer to Connecting to Power for detailed information). The
Tire Changer comes from the factory set to 110 VAC and the Power Cord has a 110 VAC Plug.

DT-50 and DT-50A Tire Changer 8P/N 5900260 — Rev. A1 — Dec. 2020
Frequently Asked Questions
Question: What does a Tire Changer do?
Answer: A Tire Changer takes Tires off of Wheels (called demounting), puts Tires onto Wheels
(called mounting), and inflates Tires.
Q: What is the difference between a Tire, Wheel, and Rim?
A: A Wheel is the round
metal piece that attaches to the Vehicle’s axle. A Tire is the round rubber
piece that surrounds the Wheel. The outer edge of the Wheel, where the Tire attaches to the
Wheel, is called the Rim. Some people use Wheel and Rim interchangeably.
Q: What are the steps in the process of demounting a Tire and then mounting a new Tire?
A: The steps are: Deflate the Tire, break the Bead on both sides of the Tire, secure the Wheel on the
Turntable, demount the Tire, mount the new Tire, inflate the new Tire, then remove the Wheel
from the Turntable.
Q: What does “break the Bead” mean?
A: A Tire is held on the Rim of a Wheel by the Tire Bead sitting between the Rim Lip and the Bead
Retainer of the Rim (this location is called the Bead Seat). The air pressure in the Tire holds it in
place once the Bead is seated (during mounting). When you “break the Bead”, you move the Tire
Bead out of Bead Seat, which is required to demount the Tire.
Q: Can I break the Bead without fully deflating the Tire?
A: No, do not do this.
Always fully deflate a Tire before attempting to break its Bead.
The air pressure energy in a Tire, even if not fully inflated, can be considerable. If you attempt to
break the Bead of a Tire not fully deflated, that air pressure energy would be released all at once,
possibly injuring or, in rare cases, killing the Operator or bystanders.
Q: What important thing should I always do when working with the Tire Changer?
A: You must identify and correctly match the Tire and Wheel/Rim diameters of the Tires you are
mounting; they must match exactly. If they do not match exactly, this is called a Tire mismatch.
The result of a mismatch is that the Tire could literally explode off the Wheel when you inflate it or
while the Vehicle is being driven. In both cases, people could be injured or killed. Note that the
phrase “Tire mismatch” is also used to mean Tires on a single Vehicle with different tread patterns
or from different manufacturers. This is not what we are talking about here. Dannmar
recommends getting and reading OSHA standard 29 CFR 1910.177 (Servicing Multi-Piece and
Single Piece Rim Wheels) for additional information.
Q: Where should I put my Tire Changer?
A: Place the Tire Changer on a flat Concrete Floor with clearance around it that is also near where
you work on Tires. Ideally, you want it a little off the beaten path, as you must – for safety – keep
everyone away from the Tire Changer while it is in use. No one other than the Operator should be
within 30 feet of the Tire Changer while it is in use. Refer to the Clearance section.
Q: Why is there a 110 VAC plug on the Power Cord; I want to use a 220 VAC power source?
A: The Tire Changer comes configured from the factory for 110 VAC operation. However, it may be
converted to 220 VAC. Conversion requires a certified, licensed Electrician. Refer to Connecting
to Power for complete instructions for switching. Pay careful attention to the instructions for
switching input voltage. If done incorrectly, the Tire Changer will be damaged.

DT-50 and DT-50A Tire Changer 9P/N 5900260 — Rev. A1 — Dec. 2020
Specifications Model DT-50 and DT-50A
Specification Performance
Motor 110/220 VAC, 50-60 HZ, 1 Ph., 1.1kW*
Power Cord Length 8 Ft. / 2438 mm
Drive System Type Electric / Air
Air Requirement 116 – 145 PSI (8 – 10 BAR) at 15-25 CFM
Wheel Clamping Method 4 Clamps – Internal / External
Table Clamping System Dual Pneumatic Cylinders
Bead Breaking System Pneumatic Blade
Tower Design Rigid Fixed / Swing Arm
Assist Tower Design Swing Arm (Model DT-50A Only)
Rim Size Clamping Min.-Max.** 12-26 in.
Actual Clamping Diameter Min.-Max. 13.5-27.5 in. / 345-700 mm
Turntable Rim Width Capacity 3 – 15 in / 76 – 381 mm
Bead Breaker Rim Width Capacity 3 – 14 in / 76 – 356 mm
Maximum Tire Diameter 47 in / 1200 mm
Noise <70 dB
Operating Temperature +39˚ to +104˚F /+4˚ to +40˚C
Operating Humidity 90% at 20˚C and 50% at 40˚C Non-Condensing
Dimensions 50.78 in. wide by 47.25 in. deep by 76 in. high
1290 mm wide by 1200 mm deep by 1930 mm
high
*Factory configured for 110 VAC operation; may be switched to 220 VAC. Refer to Connecting to
Power for instructions; licensed, certified Electrician required to switch to 220 VAC.
**Rim size indicates the Bead Seat diameter not the outside diameter of the Wheel.
Specifications subject to change without notice.

DT-50 and DT-50A Tire Changer 10 P/N 5900260 — Rev. A1 — Dec. 2020
Installation Checklist
Following are the steps needed to install the Tire Changer. Perform them in the order shown.
☐1. Review the installation Safety Rules.
☐2. Make sure you have the necessary Tools.
☐3. Find an appropriate Location.
☐4. Make sure there is adequate Clearance around and above the Tire Changer.
☐5. Unpack the Unit.
☐6. Move the Tire Changer to its permanent location.
☐7. Anchor the Unit.
☐8. Install the Swing Arm.
☐9. Install the Assist Tower and Arm. (DT-50A Only)
☐10. Assist Arm motion adjustment, if required. (DT-50A Only)
☐11. Connect to Air.
☐12. Connect to Power. Switching to 220 VAC operation requires a certified, licensed
Electrician.
☐13. Prepare the Lube Bucket.
☐14. Review the Final Checklist.

DT-50 and DT-50A Tire Changer 11 P/N 5900260 — Rev. A1 — Dec. 2020
Installation
This section describes how to install your Tire Changer. Perform the tasks in the order presented.
Installation Safety Rules
Pay attention at all times during installation. Use appropriate tools and equipment. Stay
clear of moving parts. Keep hands and fingers away from pinch points.
Safety is your top priority .
Use caution when unpacking the Tire Changer from its shipping container and setting it up. The Tire
Changer is heavy and the weight is not evenly distributed. Dropping or knocking over the unit may
cause equipment damage and personal injury.
⚠WARNING You must wear OSHA-approved (publication 3151) Personal Protective Equipment
at all times when installing, using, maintaining, or repairing the Tire Changer: leather
gloves, steel-toed work boots, eye protection, back belts, and hearing protection.
Only experienced, trained technicians may install the Tire Changer. In particular, all electrical work
must be accomplished by a licensed, certified Electrician.
⚠CAUTION Certain parts of installing the Tire Changer are difficult for one person. Dannmar
strongly recommends having two or more persons work together to install the
unit.
Tools
You may need some or all of the following tools:
•Forklift, pallet jack, or shop crane
•Utility knife
•Hammer, mallet, crow bar, or pry bar
•Tin or sheet metal snips
•Hex key and wrench set, metric and SAE
•Screwdriver set, slot and Phillips
•Hammer drill and masonry drill bit.
Finding a Location
Keep the following in mind when deciding on a location:
•Power source. The Tire Changer needs to be near an appropriate power source.
•Floor. Anchor the Tire Changer on a flat, Concrete Floor.
•Clearance. The Tire Changer needs space around it. Refer to Clearance for more information.
•Access. You need some space to move Tires to and from the Tire Changer.
•Danger. When the Tire Changer is in use, especially during Inflation, you need to keep everyone
away from it. Only the Operator should be within 30 feet of the Tire Changer when it is in use.
Do not set up the Tire Changer in a well-travelled area .
•No water. The Tire Changer has electronic components. If the Tire Changer gets wet while
connected to power, those electronic components will most likely short circuit and have to be
replaced.

DT-50 and DT-50A Tire Changer 12 P/N 5900260 — Rev. A1 — Dec. 2020
⚠WARNING Do not use the Tire Changer if it is in water. You will short circuit the electronic
components in the Tire Changer and you could electrocute yourself or bystanders.
Clearance
Space to work and move tires around the Tire Changer is required.
⚠WARNING The Clearance values shown below allow enough space to operate the Tire
Changer.
However, for safety purposes, only the Operator should be
within 30 feet of the Tire Changer while it is in use.
Top view. Not to scale. Not all components shown.

DT-50 and DT-50A Tire Changer 13 P/N 5900260 — Rev. A1 — Dec. 2020
Unpacking
Dannmar recommends unpacking the Tire Changer as close as possible to its permanent location. The
less you have to move things around, the smoother your unpacking and installing effort will be.
Note: Many of the Tire Changer components have been greased to protect them during shipping.
Dannmar recommends having some rags nearby when unpacking, as you will almost
certainly get grease on your gloves. You should clean the grease off of the Turntable, the
Mount/Demount Head, and the Shaft Lock Handle, as keeping them greased would hinder
normal operation of the unit. You can keep the Shaft and the Swing Control knob greased.
Use caution when taking the Tire Changer out of its shipping container . You do not
want to damage the unit, misplace any of the components, or hurt anyone.
To unpack the Tire Changer:
Make sure you are wearing OSHA-approved (publication 3151) Personal Protective Equipment:
leather gloves, steel-toed work boots, back belts, hearing protection, and ANSI-approved eye
protection (safety glasses, face shield, or goggles).
At the bottom of the Cover, push the metal tabs all the way down, on all four sides.
You may have to apply some force to get all of the metal tabs free; they sometimes stick.
Lift the Cover off.
⚠CAUTION Dannmar recommends having at least two people lift the Cover off, it is heavy and
awkward. If the cover is dropped, it could cause injury or equipment damage.
Remove the plastic wrap around the Tire Changer and other components.
Moving the Tire Changer to its Permanent Location
⚠WARNING Make sure to use an appropriate lifting device, such as a Forklift or Pallet Jack, to
move the Tire Changer while it is on its Pallet. Make sure only personnel who are
experienced with material handling procedures are allowed to move the Tire
Changer. The Tire Changer is heavy and the weight is not evenly distributed;
dropping or knocking over the unit may cause equipment damage or personal
injury. Dannmar recommends having at least two people work together to move the
Tire Changer.
To move the Tire Changer:
Make sure you are wearing OSHA-approved (publication 3151) Personal Protective Equipment:
leather gloves, steel-toed work boots, back belts, hearing protection, and ANSI-approved eye
protection (safety glasses, face shield, or goggles).
Remove the shipping bolts that hold the Tire Changer to the Pallet.
Carefully move the Tire Changer off the Pallet.
The Tire Changer can be moved off the Pallet using a Forklift under either side. Use care when
moving the Tire Changer off the Pallet
.
If you prefer lifting the Tire Changer to move it, use an appropriate lifting device (such as a Shop
Crane) with a strap secured around the top of the Main Tower to move it into place.

DT-50 and DT-50A Tire Changer 14 P/N 5900260 — Rev. A1 — Dec. 2020
⚠CAUTION While moving the Tire Changer, be sure to stay clear of pneumatic fittings and
plumbing to prevent damage.
Move the Tire Changer to its permanent location.
Anchoring the Tire Changer
The Tire Changer has holes in its base for anchoring it in place.
Note: Dannmar recommends anchoring, as the Tire Changer uses force at various times during
the changing of a Tire. Anchoring ensures it will not move during operation.
The Tire Changer has four .5 in / 12.7 mm holes for anchoring, one at each corner of the base.
Top View. Not to scale. Not all components shown.
The Anchor Bolts (sometimes called Wedge Anchors) mentioned in the following procedure are
not
supplied with the Tire Changer. You could, for example, use 3/8 in wide by 3 in deep Anchor Bolts to
secure the Tire Changer, drilling the hole approximately 2.5 in / 63.5 mm into the Concrete.
To Anchor the Tire Changer:
Make sure you are wearing OSHA-approved (publication 3151) Personal Protective Equipment:
leather gloves, steel-toed work boots, back belts, hearing protection, and ANSI-approved eye
protection (safety glasses, face shield, or goggles).
Make sure the Tire Changer is in the desired location.
Using the Tire Changer anchor holes as guides, drill four holes for the Anchor Bolts.
Go in straight; do not let the drill wobble. Use a carbide drill bit (conforming to ANSI B212.15).

DT-50 and DT-50A Tire Changer 15 P/N 5900260 — Rev. A1 — Dec. 2020
Use a drill bit that is the same diameter as the Anchor Bolt. So if you are using an 3/8 in diameter
Anchor Bolt, for example, use a 3/8 in diameter drill bit.
Vacuum each hole clean.
Dannmar recommends using a wire brush and a vacuum to get the hole very clean.
Do
not ream the hole. Do not make the hole any wider than the drill bit made it.
Make sure the Washer and Nut are in place, then insert the Anchor Bolt into the Tire Changer
anchor hole.
The Expansion Sleeve of the Anchor Bolt may prevent the Anchor Bolt from passing through the
hole in the base of the Tire Changer, this is normal. Use a hammer or mallet to get the Expansion
Sleeve through the base and down into the hole.
Even using a hammer or mallet, the Anchor Bolt should only go into the hole part of the way; this is
normal. If the Anchor Bolt goes all the way in with little or no resistance, the hole is too wide.
Once past the hole in the base, the Anchor Bolt eventually stops going down into the hole as the
Expansion Sleeve contacts the sides of the hole, this is normal.
Hammer or mallet the Anchor Bolt the rest of the way down into the hole.
Stop when the Washer is snug against the base of the Tire Changer.
Use a torque wrench to tighten each Nut clockwise to the torque recommended by the
manufacturer of the Anchor Bolt.
If no torque is specified, Dannmar recommends ~55 lbf-ft / 74 N-m for a 3/8 in diameter Anchor
Bolt.
Important: Do
not use an impact wrench to torque the Anchor Bolts.
Wrenching the Nut forces the Wedge up, forcing out the Expansion Sleeve and pressing it tightly
against the Concrete.

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Installing the Swing Arm
IMPORTANT Dannmar strongly recommends having a second person help install the Swing Arm.
⚠WARNING Use care when moving the Swing Arm. It is heavy and not evenly balanced. If it is
dropped, you could injure bystanders and damage the unit.
To install the Swing Arm:
Refer to the Swing Arm Parts List and the figure below.
Make sure you are wearing OSHA-approved (publication 3151) Personal Protective Equipment:
leather gloves, steel-toed work boots, back belts, hearing protection, and ANSI-approved eye
protection (safety glasses, face shield, or goggles).
Carefully remove the components that secured the Swing Arm during transport.
Locate the
Swing Arm Pivot
(332), two
washers (331),
Nut (334) and
Washer (331).
Have one person
hold the Swing
Arm in position
on the Tower
while the other
slides in the two
Washers (333)
on the top and
bottom of the
Swing Arm, and
then slide in the
Swing Arm Pivot
Pin (332).
Secure the Pivot
Pin with the
Washer (333)
and the Nut
(334) then
tighten.
Install the Swing
Arm Control
Screw (204).
Make sure to
orient the Swing
Arm so that the
Mount/Demount
Head is over the
Turntable.

DT-50 and DT-50A Tire Changer 17 P/N 5900260 — Rev. A1 — Dec. 2020
Installing the Assist Tower and Arm (DT-50A Only)
IMPORTANT Dannmar strongly recommends having a second person help install the Assist
Tower and Arm.
⚠WARNING Use care when moving the Assist Tower and Arm. It is heavy and not evenly
balanced. If it is dropped, you could injure bystanders and damage the unit.
To install the Assist Tower and Arm:
This section applies to the DT-50A only.
Refer to the Assist Tower Parts List and the figure below.
Dannmar strongly recommends having a second person help install the Assist Tower and Arm.
Make sure you are wearing OSHA-approved (publication 3151) Personal Protective Equipment:
leather gloves, steel-toed work boots, back belts, hearing protection, and ANSI-approved eye
protection (safety glasses, face shield, or goggles).
Carefully remove the components that secured the Assist Tower and Arm during transport.
Have one person hold the Assist Arm and Tower while you guide the Arm in position over the Pivot
Pin on the Tower, as shown below.
Slide on the Washer then thread on the top and bottom lock nuts on the Pivot Pin.
Adjust the motion of the arm by tightening the bottom lock nut until the arm can move freely, but is
not so tight as to require significant force to move.
Tighten the top locknut to lock the bottom locknut in position.
View not to scale, not all components shown.

DT-50 and DT-50A Tire Changer 18 P/N 5900260 — Rev. A1 — Dec. 2020
Thread the Air Line from the Assist Tower through the top and bottom Air Line Guides on the
tower, as shown in the figure below.
Connect the Air Line from the Assist Tower to the Push-to-Connect pneumatic coupling as shown
in the figure below.
Partial back view. Not to scale, not all components shown.

DT-50 and DT-50A Tire Changer 19 P/N 5900260 — Rev. A1 — Dec. 2020
Assist Arm Motion Adjustment (DT-50A Only)
This section applies to the DT-50A only. The DT-50A Assist Tower is moved by the operator as
required anywhere around the top of the Tire. The Assist Tower is supported by the Assist Arm which
is connected to the Tower through two adjustable Pivot Points. One Pivot Point is located on the
Assist Arm and the other is located where the Assist Arm connects to the Tower. The ease with which
the Assist Arm moves is controlled by these Pivot Points through a threaded shaft and two locknuts on
each Shaft.
Refer to the figure on this page and the procedures below.
To Decrease the Assist Arm’s resistance to motion:
Select the Assist Arm Pivot Point or the Assist Arm Tower Pivot Point.
Loosen the Top Lock Nut by one or two turns.
Slowly loosen the Bottom Lock Nut while moving the Assist Arm. The resistance to motion should
reduce as you loosen the nut.
When the Assist Arm’s resistance to movement is acceptable, tighten the Bottom Lock Nut.
Hold the Bottom Lock Nut in place while tightening the Top Lock Nut to lock the Assist Arm’s
resistance in the current position.
To Increase the Assist
Arm’s resistance to
motion:
Select the Assist Arm Pivot
Point or the Assist Arm
Tower Pivot Point.
Loosen the Top Lock
Nut by one or two
turns.
Slowly tighten the
Bottom Lock Nut while
moving the Assist Arm.
The Assist Arm’s
resistance to motion
should increase as you
tighten the bottom lock
nut.
When the resistance to
movement is
acceptable, stop
tightening the Bottom
Lock Nut.
Hold the Bottom Lock
Nut in place while
tightening the Top Lock
Nut to lock the Assist
Arm’s resistance in the
current position.

DT-50 and DT-50A Tire Changer 20 P/N 5900260 — Rev. A1 — Dec. 2020
Connecting to Air
The Tire Changer requires a 15 to 25 CFM Air Source with an operating air pressure of 116 to 145 psi
(8 to 10 bar). Connect the Air Source to the Air In connector on the Lubricator/Regulator/Filter, located
on the back of the Tire Changer.
Important: The Tire Changer uses pneumatic and electrical energy; if your organization has
Lockout/Tag-out policies, implement them once the unit is connected to the Air
Source.
The Air Lines going out of the Regulator/Filter and Oiler/Lubricator come connected and ready for use;
no installation or adjustment is required.
The incoming Air Source connects to the Tire Changer via the Air In connector on the Regulator/Filter.
Note: You need to provide a Fitting for the Air In connector; it is not supplied.
Side view. Drawing not to scale. Not all components shown.
The following drawing shows a Quick-Connect Air Fitting (shown on the right, below) that connects to
the Air In connector (shown on the left, below). The Quick-Connect fitting is
not supplied with the Tire
Changer.
The Regulator / Filter removes contaminants from the incoming air. It also includes a gauge that
shows the operating air pressure of the incoming air. If you see water in the Water Sight Gauge, you
can drain it using the Water Drain Plug. Refer to Maintenance for more information.
The Oiler / Lubricator puts pneumatic oil, for lubrication, into the incoming air. This lubricated air is
routed to pneumatic components of the Tire Changer.