Heavy Duty
Wheel Dolly
Operating Instructions & Parts Manual
Model Number
Atd-7227
Capacity
3/4 Ton (1500 Lbs)
Atd Tools Inc. ©2005
160 Enterprise Drive, Wentzville, MO 63385
Atd7227-M0
Printed in China
Save these instructions. For your safety, read and understand the information contained within. The owner and
Product Size
Net
operator shall have an understanding of this product and safe operating procedures before attempting to use this
product. Instructions and Safety information shall be conveyed in the operators native language before use of this
product is authorized. Make certain that the operator thoroughly understands the inherent dangers associated with
the use and misuse of the product. If any doubt exits as to the safe and proper use of this product as outlined in this
factory authorized manual, remove from service until which time it is clear. Inspect before each use. Do not use if
broken, bent, cracked or otherwise damaged parts are noted. If the dolly has been or suspected to have been
subjected to a shock load, discontinue use until checked out by an authorized factory service center. Owners and
operators of this equipment shall be aware that the use and subsequent repair of this equipment may require special
training and knowledge. It is recommended that an annual inspection be done by qualified personnel and that any
missing or damaged parts, decals, warning / safety labels or signs be replaced with factory authorized replacement
parts only. Any dolly that appears to be damaged in any way, is worn or operated abnormally should be removed from
service immediately until such time as repairs can be made.
PRODUCT DESCRIPTION
Atd Tools Wheel Dolly is designed to facilitate the removal and installation of pneumatic tires and wheel assemblies on
trucks, buses and trailers. It is a labor saving device useful in auto shops, bus barns and fleet service.
SPECIFICATIONS
Model Capacity
Atd-7227
Handle
Main Frame
3/4 Ton
(1500 Lbs)
Chain
Hydraulic
Lift
5" 2 1/4" - 11" 43 1/2" x 43" x 34 7/8"
Lifting Range
(L x W x H)
Hydraulic
Unit
Load
Leveler
Oil Filler Plug
Rear Caster
Tilt Range
-2.5o - 10
Saddle
o
Handle
Sleeve
Weight
174
Jack Handle
Lift Member
Figure 1- Model Atd-7227 Nomenclature
Front Caster
Release Valve
Figure 2- Model Atd-7227 Hydraulic Unit Nomenclature
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Atd7227-M0
WARNING
BEFORE USE
1. Inspect before each use. Do not use if bent, broken,
leaking or cracked components are noted. Ensure that
casters, rollers and lifting arms move freely. Check
and tighten any loose assemblies.
2. Verify that the product and the application are
compatible, if in doubt call Atd Tools Technical
Service (636)272-9050.
3. Read, understand and follow vehicle manufacturer’s
recommended tire change procedures.
4. With ram lowered, locate and remove oil filler plug.
This purges the hydraulic system of pressurized air
trapped in reservoir. Check fluid level. Proper level is
level with filler plug hole.
5. Reinstall oil filler plug.
• Read and understand all warnings and instructional
material provided on and with this product before use.
• Do not exceed rated capacity.
• Use only on smooth, hard, level surfaces capable
of sustaining the load.
• Before moving, lower the load to the lowest
possible point and assure that the load is centered
and secured with a load restraint device.
• Apply load as close to the vertical position of the
lifting arms as possible.
• No alterations shall be made to this product.
• Failure to heed this warning may result in personal
injury as well as property damage.
!
ASSEMBLY (refer Figure 3 below)
1. Attach front caster (# 1) into left main frame (# 4) and right main frame (# 5) with M8x16 bolts and washers (# 2 & 3).
2. Attach rear caster (# 6) into rear support (# 7), with M8x16 bolts, washers and nuts (# 2, 3 & 16).
3. Insert left main frame (# 4) in right main frame (# 5).
4. Attach upright (# 6) and rear support (# 7) into the main frame assembly with two M12x100 bolts and nuts (#12 & 13)
and four M14x110 bolts, washers and nuts (No. 9, 10 & 11).
5. Attach lifting strap (# 14) to the mouting ear of upright and main frame with M8x34 bolts, washers and nuts (# 3,15
& 16).
6. Attach power unit (# 17) onto the upright assembly.
7. Insert load leveler handle (# 18) to rear support (#7) with bolts and pin (# 19 & 20)
8. Attach the chain (# 21) onto upright assembly.
21
9
8
10
5
11
13
4
3
1
2
14
16
17
18
20
19
12
7
16
3
2
6
15
3
Figure 3- Assembly Drawing for Model Atd-7227
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Atd7227-M0
HOW TO USE
1. Set emergency brake, chock tires of diagonally
opposed wheel(s) in both directions AND take every
precaution necessary to ensure set up is stable and
prevent inadvertent vehicle movement.
2. When tire & wheel assembly are ready to remove,
position wheel dolly to accept tire & wheel assembly
and secure load with restraint.
3. Use jack handle to turn release valve clockwise until
tight. DO NOT OVERTIGHTEN. Insert jack handle into
handle sleeve of hydraulic unit and pump until lifting
arms reach desired height.
Note: Do not use wheel dolly to free a seized up wheel
assembly. For typical practice of taking out a seized
up wheel assembly, a long metal bar can be used to
pry the wheel assembly from the stuck wheel axle. If in
doubt, always follow vehicle’s manufacturer manual on
how to remove tire & wheel assembly.
4. Use load leveler to adjust the angle.
5. Carefully move loaded wheel dolly away from hub.
6. To install, reverse order.
Note: Before moving loaded wheel dolly, always secure
the load with provided chain.
MAINTENANCE
Important: Use only a good grade hydraulic jack oil.
Avoid mixing different types of fluid and NEVER use
brake fluid, turbine oil, transmission fluid, motor oil or
glycerin. Improper fluid can cause premature failure of
the jack and the potential for sudden and immediate
loss of load. We recommend Mobil DTE 13M or
equivalent.
Adding oil
1. With saddle fully lowered and pump piston fully
depressed, adjust wheel dolly to level position.
Remove oil filler plug.
2. Fill until oil is level with the filler plug hole, reinstall oil
filler plug.
Changing oil
For best performance, replace the fluid at least once per
year.
1. With saddle fully lowered and pump piston fully
depressed, remove jack from leveler assembly, then
remove the oil filler plug.
2. Lay the jack on its side and drain the fluid into a
suitable container.
Note: Dispose of hydraulic fluid in accordance with local
regulations.
3. Fill with good quality hydraulic jack oil. Reinstall oil
filler plug.
Lubrication
A coating of light lubricating oil to pivot points, axles and
hinges will help to prevent rust and assure that casters
and pump assemblies move freely.
Cleaning
Periodically check the pump piston and ram for signs if
rust or corrosion. Clean as needed and wipe with a clean,
oil soaked rag.
Note: Never use sandpaper or abrasive material on these
surfaces !
Storage
When not in use, store the unit with pump piston and
ram fully retracted.
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Atd7227-M0
TROUBLESHOOTING
Symptom
Hydraulic unit will not lift load
Hydraulic unit bleeds off after
lift
Hydraulic unit will not lower
after unloading
Poor performance
Will not lift to full extension
Possible Causes Corrective Action
• Release valve not tightly closed
• Overload condition
• Release valve not tightly closed
• Overload condition
• Hydraulic unit malfunction
• Reservoir overfilled
• Linkages binding
• Fluid level low
• Air trapped in system
• Fluid level low
• Ensure release valve tightly closed
• Remedy overload condition
• Ensure release valve tightly closed
• Remedy overload condition
• Contact Atd Tools Tech. Service
• Drain fluid to proper level
• Clean and lubricate moving parts
• Ensure proper fluid level
• With ram fully retracted, remove oil
filler plug to let pressurized air escape,
then reinstall oil filler plug
• Ensure proper fluid level
ONE YEAR LIMITED WARRANTY
For a period of one (1) year from date of purchase, Atd Tools Inc. will repair or replace, at its option, without charge,
any of its products which fails due to a defect in material or workmanship, or which fails to conform to any implied
warranty not excluded hereby.
Performance of any obligation under this warranty may be obtained by returning the warranted product, freight
prepaid, to Atd Tools Inc. Warranty Service Department, 160 Enterprise Drive, Wentzville, MO 63385.
Except where such limitations and exclusions are specifically prohibited by applicable law. (1) the CONSUMER'S
SOLE AND EXCLUSIVE REMEDY SHALL BE THE REPAIR OR REPLACEMENT OF DEFECTIVE PRODUCTS AS
DESCRIBED ABOVE, and (2) Atd Tools Inc. SHALL NOT BE LIABLE FOR ANY CONSEQUENTIAL OR INCIDENTAL DAMAGE OR LOSS WHATSOEVER, and (3) THE DURATION OF ANY AND ALL EXPRESSED AND IMPLIED
WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE, IS LIMITED TO A PERIOD OF ONE (1) YEAR FROM DATE OF PURCHASE.
Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to
you. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above
limitation or exclusion may not apply to you. This warranty gives you specific legal rights, and you may also have
other rights which vary from state to state.
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Atd7227-M0
REPLACEMENT PARTS
Available Parts: Please refer to the Parts drawing when ordering parts. Not all components of the dolly are replacement
items, but are illustrated as a convenient reference of location and position in the assembly sequence. When ordering
parts, give Model number, serial number and description below. Call or write for current pricing:
Atd Tools Inc. 160 Enterprise Drive, Wentzville, MO 63385 Tel:(636)272-9050 Fax:(636)272-9044
Model Atd-7227
Ref# Part # Description Qty.
1 B0430S-00 Hydraulic Unit 1
2 T474-04000-000 Front Caster (3 1/2'’) 2
3 T590-08000-000 Rear Caster (5 1/2'’) 1
4 T590-07000-000 Chain 1
— Atd7227-L0 Label ( not shown) 1
— Atd7227-M0 Owner’s Manual 1
— T5900-99-00000 Hardware Kit ( not shown) all bolts and nuts
2
4
1
Figure 4 - Replacement Parts Illustration for Model Atd-7227
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Atd7227-M0
Notes
Atd Tools Inc.
160 Enterprise Drive, Wentzville, MO 63385
Tel: (636)272-9050 Fax: (636)272-9044 www.atdtools.com
Notes
Atd Tools Inc.
160 Enterprise Drive, Wentzville, MO 63385
Tel: (636)272-9050 Fax: (636)272-9044 www.atdtools.com
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