Atd Tools 7304 Users Manual RHO7304

ATD7304OM ATD7304OM

2015-02-06

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Owner's Manual
Trolley Jack
Model
ATD-7304

!

Capacity
2 Ton

This is the safety alert symbol. It is used to alert you to potential personal injury hazards.
Obey all safety messages that follow this symbol to avoid possible injury or death.

! ADVERTENCIA

!

• Leer, comprender, y seguir las instrucciónes antes
de utilizar el aparato.
• El manual de instrucciónes y la información de
seguridad deben estar comunicado en lengua del
operador antes del uso.
• No seguir estas indicaciónes puede causar daños
personales o materiales.

WARNING

To avoid crushing and related injuries:
NEVER work on, under or around a
load supported only by a hydraulic
jack. ALWAYS use adequately rated
jack stands.

Atd Tools Inc.

160 Enterprise Drive, Wentzville, MO 63385
Read this manual and follow all the Safety Rules and Operating Instructions before using this product.
Printed in China

RHO7304-M1 rev 02/08

SAFETY and GENERAL INFORMATION

Save these instructions. For your safety, read, understand, and follow the information provided with and on this jack
before using. The owner and operator of this equipment shall have an understanding of this jack and safe operating
procedures before attempting to use. The owner and operator shall be aware that use and repair of this product
may require special skills and knowledge. Instructions and safety information shall be conveyed in the operator's
native language before use of this jack is authorized. If any doubt exists as to the safe and proper use of this jack,
remove from service immediately.
Inspect before each use. Do not use if broken, bent, cracked or damaged parts are noted. Any jack that appears
damaged in any way, or operates abnormally shall be removed from service immediately. If the jack has been or
suspected to have been subjected to a shock load (a load dropped suddenly, unexpectedly upon it), immediately
discontinue use until jack has been checked by a factory authorized service center (contact distributor or manufacturer
for list of authorized service centers). It is recommended that an annual inspection be done by qualified personnel.
Labels and Operator's Manuals are available from manufacturer.

PRODUCT DESCRIPTION

Hydraulic Floor Jacks are designed to lift, but not support, one end of a vehicle. Immediately after lifting, loads must
be supported by a pair of appropriately rated jack stands.
NEVER use hydraulic jack as stand-alone device. After lifting, immediately support the lifted vehicle with
a pair of appropriately rated jack stands. NEVER place ANY portion of your body beneath the vehicle when
lifting OR lowering!

!

SPECIFICATIONS
Model

Capacity

Jack Size (L x W )

Min. Height

ATD-7304

2 Ton

19 7/8" x 7 7/8" x 5 1/2"

5 1/2"

Max. Height
14"

PREPARATION

Before Use
1. Verify that the product and application are compatible, if in doubt call Atd Tools Technical Service (636) 3279050.
2. Before using this product, read the operator's manual completely and familiarize yourself thoroughly with the
product, its components and recognize the hazards associated with its use.
3. To familiarize yourself with basic operation, use the stamped end of the provided handle to engage and turn
release valve:
a. Clockwise until firm resistance is felt to further turning. This is the ‘CLOSED’ release valve position used to
raise the saddle.
b. Counter-clockwise, but no more than 1/2 turn from the closed position. This is the ‘OPEN’ release valve
position used to lower the saddle.
4. With saddle fully lowered, remove the oil filler plug. Pump 6 to 8 full strokes. Check oil level. *Proper oil level will vary
from just covering the ram cylinder to 3/16” above it as seen from the oil filler hole. Reinstall the oil filler plug.
*NOTICE: If the oil level is too low, the jack will not raise to its advertised maximum height. DO NOT overfill the
reservoir. An overfilled reservoir can cause a wide variety of performance problems and create an oily mess on
the shop floor! See the troubleshooting guide on page 4.
5. Ensure that jack rolls freely. Raise and lower the unloaded saddle throughout the lifting range before putting
into service to ensure the pump operates smoothly. Replace worn or damaged parts and assemblies with Atd
authorized replacement parts only.
Bleeding / Venting Trapped Air
With the release valve in the OPEN position (3b.) and with saddle fully lowered, locate and remove the oil filler
plug. Pump 6 to 8 full strokes. This will help release any pressurized air which may be trapped within the reservoir.
Reinstall the oil filler plug.
2

OPERATION

Saddle
Oil Filler Plug
(Remove cover
plate to access)

Lifting Arm

Lifting

Only attachments and/or adapters supplied
by the manufacturer shall be used. Lift only
on area of the vehicle as specified by the vehicle
manufacturer.

!

Front
Wheel

Handle
Sleeve

1. Follow the vehicle manufacturer’s recommended
guidelines for lifting. Engage the emergency brake
and chock each unlifted wheel in both directions to
prevent inadvertent vehicle movement.
2. Close release valve by turning it with the stamped end
of handle clockwise until firm resistance is felt.
3. Refer to the vehicle manufacturer owner’s manual to
locate approved lifting points on the vehicle. Center
jack saddle under lift point.
4. Verify lift point, then pump handle to contact lift
point. To lift, pump handle until load reaches desired
height.
5. Transfer the load immediately to appropriately rated
jack stands.

Release
Valve
Rear Caster

Handle

Figure 1 - ATD-7304 Nomenclature

!

WARNING

NEVER use hydraulic jack as a stand
alone device! ALWAYS transfer the lifted load
IMMEDIATELY to a pair of appropriately rated jack
stands. Use one pair of jack stands per vehicle.
Rated capacity is per pair only! Do not exceed rated
capacity.

!

• Study, understand, and follow all printed
materials provided with/on this product before use.
• Do not exceed rated capacity.
• Use only on hard, level surface.
• This is a lifting device only!
• Immediately after lifting, support the load with
a pair of appropriately rated jack stands.
• Lift only on areas of the vehicle as specified by
the vehicle manufacturer.

Lowering
Be sure all tools and personnel are clear before
lowering load. Slowly open the release valve!
The more you turn the handle counter-clockwise, the
faster the load will come down. Maintain control of the
rate of speed at which the load lowers at all times!

!

• Do not move or dolly the vehicle while on the jack.
• No alterations shall be made to this product.
• Failure to heed these markings may result in
personal injury and/or property damage.

!

WARNING

1. Raise load high enough to clear the jack stands.
2. Remove jack stands carefully (always used in pairs).
3. Slowly turn the handle counter-clockwise, but no
more than 1/2 full turn. If the load fails to lower:
a. Use another jack to raise the vehicle high
enough to reinstall jack stands.
b. Remove the malfunctioning jack and then the
jack stands.
c. Use the functioning jack to lower the vehicle.
4. After removing jack from under the vehicle, fully
lower the saddle to reduce ram exposure to rust and
contamination.

X

To avoid crushing and related injuries:
• Never work on, under or around a load supported
only by hydraulic jack.
• Always use adequately rated jack stands.
• Chock each unlifted tire in both directions.
• Do not use this device to lift, level, lower, support nor
move a house, mobile home, travel trailer, camper or
any building structure.
• Be alert and sober when using this product. Do not
operate under the influence of drugs or alcohol.
3

MAINTENANCE

Important: Use only 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 set jack in its upright, level position. Remove oil filler plug.
2. *Proper oil level will vary from just covering the inner cylinder to ~3/16” above the inner cylinder as seen from
the oil filler plug hole. Reinstall the oil filler plug.
*NOTICE: If the oil level is too low, the jack will not raise to its advertised maximum height. DO NOT overfill the
reservoir. An overfilled reservoir can cause a wide variety of performance problems and create an oily mess on the
shop floor! See the troubleshooting guide below.
Changing oil
For best performance and longest life, replace the complete fluid supply at least once per year.
1. With saddle fully lowered, 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 oil until ~3/16" above the inner cylinder as seen from the oil filler hole. Reinstall oil filler plug.
Lubrication
A periodic coating of light lubricating oil to pivot points, axles and hinges will help to prevent rust and assure that
wheels, casters and pump assemblies move freely.
Cleaning
Periodically check the pump piston and ram for signs of rust or corrosion. Clean as needed and wipe with an oily
cloth.
Note: Never use sandpaper or abrasive material on these surfaces!
Storage
When not in use, store the jack with saddle fully lowered.

TROUBLESHOOTING
Symptom

Possible Causes

Corrective Action

Jack will not lift load

• Release valve not tightly closed
• Load is too heavy

• Ensure release valve tightly closed
• Consider higher capacity jack

Jack will lift, but not maintain
pressure

• Release valve not tightly closed
• Hydraulic unit malfunction

• Ensure release valve tightly closed
• Discontinue use, contact Atd Tools
technical service

Jack will not lower after unloading

• Reservoir overfilled
• Linkages binding

• Drain fluid to proper level
• Clean and lubricate moving parts

Poor lift performance

• Fluid level low
• Air trapped in system

• Ensure proper fluid level
• With ram fully retracted, remove
oil filler plug to let pressurized air
escape. Reinstall oil filler plug

Will not lift to full extension

• Fluid level low

• Ensure proper fluid level
4

REPLACEMENT PARTS

Not all components of the jack 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)327-9050 Fax:(636)327-9044

Model ATD-7304
Item
1
2
3
4
5
6
---

Description
Quantity
Front Wheel Assembly
2
Rear Caster Assembly
2
Saddle
1
Oil Filler Plug
1
Handle
1
Spring Clips
5
Labels
2
Owner’s Manual
1

2

3
6

1

5

4

Figure 2 - ATD-7304 Replacement Parts

5

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 contacting your point of sale and obtaining return
or repair information from your supplier.
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.

Atd Tools Inc.
160 Enterprise Drive,
Wentzville MO 63385
636-327-9050

6



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