OEM Tools 24850 Service manual

UNPACKING
After unpacking unit, inspect carefully for any damage
that may have occurred during transit. Check for loose,
missing, or damaged parts. If any damage is observed,
a shipping damage claim must be filed with carrier. Do
not use the Jack if broken, bent, cracked or damaged
parts (including labels) are noted. Any Jack that appears
damaged in any way, operates abnormally or is missing
parts should be removed from service immediately. If
you suspect that the Jack was subjected to a shock
load (a load that was dropped suddenly, unexpectedly,
etc.) immediately discontinue use until it has been
checked by a factory authorized service center.
Please read and save these instructions. Read through this owner’s manual carefully before using product. Protect yourself
and others by observing all safety information, warnings, and cautions. Failure to comply with instructions could result in
personal injury and/or damage to product or property. Please retain instructions for future reference.
Operating Instructions and Parts Manual 24850
11/17
2017 OEMTOOLS™
FOR CUSTOMER SERVICE
Technical Question?
CALL 1-866-458-2472
[email protected]
20 TON
AIR/HYDRAULIC JACK
Thank you very much for choosing an OEMTOOLS™Product!
For future reference, please register your new tool at www.oem-tools.com and complete the owner’s record below:
Model: _______________ Purchase Date: ___________
Save the receipt, warranty and these instructions. It is important that you read the entire manual to become familiar with this product
before you begin using it. This product is designed for certain applications only. OEMTOOLS™cannot be responsible for issues arising
from modification. We strongly recommend this product is not modified and/or used for any application other than that for which it was
designed. If you have any questions relative to a particular application, DO NOT use the product until you have first contacted customer
service to determine if it can or should be performed on the product.
The following safety information is provided as guidelines to help you operate your 20 Ton Air/Hydraulic Jack under the safest possible
conditions. Any tool or piece of equipment can be potentially dangerous to use when safety or safe handling instructions are not known or
not followed. The following safety instructions are to provide the user with the information necessary for safe use and operation. Please
read and retain these instructions for the continued safe use of your service system. Failure to follow instructions listed below may result
in serious injury. In addition, make certain that anyone that uses the equipment understands and follows these safety instructions as well.
WARNING
Explanation of Safety Signal Words
WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
CAUTION: Used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may
result in property damage.
NOTES: Provide clarity and helpful information.

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Operating Instructions and Parts Manual 24850
11/17
2017 OEMTOOLS™
20 TON
AIR/HYDRAULIC JACK
IMPORTANT INSTRUCTIONS
AND SAFETY RULES
1. Know your tool. Read this manual carefully. Learn the
tool’s applications and limitations, as well as potential
hazards specific to it.
2. Keep work area clean and well lit. Cluttered or dark work
areas invite accidents.
3. Keep children away. All children should be kept away
from the work area. Never let a child handle a tool without
strict adult supervision.
4. DO NOT operate this 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 attempt to
operate.
5. Use safety equipment. Eye protection should be worn at
all times when operating this tool. Use ANSI approved
safety glasses. Everyday eyeglasses are NOT safety
glasses. Dust mask, non-skid safety shoes, hard hat
or hearing protection should be used in appropriate
conditions.
6. Wear proper apparel. Loose clothing, gloves, neckties,
rings, bracelets or other jewelry may present a potential
hazard when operating this tool. Keep all apparel clear of
the tool.
7. Don’t overreach. Keep proper footing and balance at all
times when operating this tool.
8. Check for damage. Check your tool regularly. If part of the
tool is damaged, it should be carefully inspected to make
sure that it can perform its intended function correctly. If
in doubt, the part should be repaired. Refer all servicing to
a qualified technician. Consult your dealer for advice.
9. Keep away from flammables. DO NOT attempt to operate
this tool near flammable materials or combustibles.
Failure to comply may cause serious injury or death.
10. Store idle tools out of the reach of children and untrained
persons. Tools may be dangerous in the hands of
untrained users.
11. Maintain tools with care.
12. Keep tools dry and clean.
13. Properly maintained tools are less likely to bind and
are easier to control. DO NOT use a damaged tool. Tag
damaged tools “Do not use” until repaired.
14. Check for misalignment or binding of moving parts,
breakage of parts, and any other condition that may affect
the tool’s operation.
15. If damaged, have the tool serviced before using. Many
accidents are caused by poorly maintained tools.
16. Use only accessories that are recommended by the
manufacturer for your model. Accessories that may be
suitable for one tool may become hazardous when used
on another tool.
17. Tool service must be performed only by qualified repair
personnel. Service or maintenance performed by
unqualified personnel could result in a risk of injury.
18. When servicing a tool, use only identical replacement
parts. Use of unauthorized parts or failure to follow
maintenance instructions may create a risk of injury.
19. Maintain a safe working environment. Keep the work
area well lit. Make sure there is adequate surrounding
workspace. Keep the work area free of obstructions,
grease, oil, trash, and other debris. DO NOT use this
product in a damp or wet location.
20. Maintain labels and nameplates on this product. These
carry important information. If unreadable or missing,
contact OEM for a replacement.
21. Keep the handle dry, clean, and free from brake fluid, oil,
and grease.
22. Before use, read and understand all warnings, safety
precautions, and instructions as outlined in the vehicle
manufacturer’s service manual. It is beyond the scope of
this manual to properly describe the correct procedure
and test data for each vehicle.
23. Always perform vehicle service in a properly ventilated
area. Never run an engine without proper ventilation for its
exhaust. Stop work and take necessary steps to improve
ventilation in the work area if you develop momentary
eye, nose, or throat irritation as this indicates inadequate
ventilation.
24. Engine parts that are in motion and unexpected
movement of a vehicle can injure or kill. When working
near moving engine parts, wear snug fit clothing and
keep hands and fingers away from moving parts. Keep
hoses and tools clear of moving parts. Always stay
clear of moving engine parts. Hoses and tools can
be thrown through the air if not kept clear of moving
engine parts.
25. The unexpected movement of a vehicle can injure or
kill. When working on vehicles always set the parking
brake or block the wheels.
26. Avoid accidental fire and/or explosion.
DO NOT smoke near engine fuel and battery
components.
27. 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.

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Operating Instructions and Parts Manual 24850
11/17
2017 OEMTOOLS™
20 TON
AIR/HYDRAULIC JACK
28. For safety purposes and the prevention of damage to
expensive components, it is advised that the user have
an understanding of basic automotive repair and a
working knowledge of automotive systems.
29. We believe the information contained herein to be
reliable. However, general technical information
is given by us without charge and the user shall
employ such information at their own discretion
and risk. We assume no responsibility for results or
damages incurred from the use of such information
in whole or in part. Always refer to specific
instructions and technical information supplied by
vehicle manufacturer.
30. The manufacturer declines any and all responsibility
for damage to vehicles or components if said damage
is the result of unskillful handling by the operator or of
failure to observe the basic safety rules set forth in the
instruction manual.
31. This equipment is intended only for professional use by
personnel trained in performing the service functions
for which it has been designed.
32. This equipment is designed for servicing a variety
of vehicles in a safe, convenient manner. However,
differences in vehicle makes and models may make
it impossible to use this equipment as it is intended.
DO NOT attempt to force the use of this equipment
on an application for which it is not designed to
perform.
33. The procedures documented in this manual are to
serve as guidelines for the use of this equipment.
34. In addition to these guidelines, always follow the
manufacturer’s recommended procedures when
servicing each unique vehicle.
35. The use of this equipment is simple and
straightforward if you follow the instructions. When
operating this equipment, use common sense, and
always stop to think before using a Jack or lifting a
vehicle
PRODUCT SPECIFICATIONS
Capacity: 20 Ton
Min. Height: 9.5" Min.
Ram Travel: 6.25"
Screw Adj.: 3.25"
Max. Height: 15.5"
Air Pressure: 110-125 PSI
Air Inlet Fitting: 1/4" NPT
PRODUCT DESCRIPTION
The heavy-duty OEMTOOLS™20-Ton Air/Hydraulic Jack
has a powerful air motor to lift heavy loads with ease.
The compact design easily fits between dual tandem
axles. This jack is great for lifting axles, farm vehicles,
heavy-duty machinery, and industrial construction
equipment.
NEVER use for any purpose other than the uses outlined
above!
1. Verify that the product and application are compatible,
if in doubt call OEMTOOLS™at 1-866-458-2472.
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. Wear appropriate safety gear, including heavy-duty
work gloves and ANSI-approved safety goggles
during use.
4. Ensure that jack rolls freely. Raise and lower the
unloaded jack throughout the lifting range before
putting into service to ensure the pump operates
smoothly. Replace worn or damaged parts.
5. DO NOT exceed the weight capacity of the jack. Make
sure weight is evenly distributed. Be aware of dynamic
loading! Sudden load movement may briefly create
excess load causing product failure. Exceeding the
maximum capacity for this product is dangerous and
can lead to serious injury or property damage.
6. Always evaluate your task before using this jack. Jacks
are designed to lift, but not support, rated capacity
partial vehicle loads consisting of one end of a vehicle.
Immediately after lifting, support loads with a pair of
appropriately rated jack stands. Use only as intended.
7. Use only on a hard, level and flat surface capable of
bearing the combined weight of the Jack, the load
being lifted, the operator and any tools being used.
8. If you are working and the load becomes off-balance
and/or the jack begins to tip over, DO NOT ATTEMPT
TO CATCH OR LIFT THE LOAD WHEN FALLING. SERIOUS
PERSONAL INJURY CAN RESULT! In this event, clear
the area as quickly and safely as possible in order to
avoid injury from the falling load, including getting hit
with flying fragments.
9. Before each use, inspect the general condition of
the Jack. Check for oil leaks, jack operation, loose
components, free rotation and pivoting of saddle
adjustment components. If a problem occurs, have the
problem corrected before further use.

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Operating Instructions and Parts Manual 24850
11/17
2017 OEMTOOLS™
20 TON
AIR/HYDRAULIC JACK
TO PREVENT SERIOUS INJURY: DO NOT USE A DAMAGED
OR MALFUNCTIONING JACK
10. If in doubt about the safety of your project, we advise
you to have the work done by a professional familiar
with applicable safety practices.
OPERATION
LIFTING VEHICLE
Always transfer the load to appropriately rated jack stands.
DO NOT work under a load which is supported only by a jack.
Never tie, clamp or disable the lift control valve.
Only attachments and/or adapters supplied by the
manufacturer shall be used.
1. Connect an adequate air source to the air supply inlet.
2. Before first use of this product, pour a teaspoon of
good quality air tool lubricant into the hose quick
coupler plug, then connect it to air source and turn
on the air valve and operate for 3 seconds to evenly
distribute lubricant.
Follow the vehicle manufacturer’s recommended
guidelines for lifting and the location of recommended
lift points.
3. Use the slotted end of the handle to turn the release
valve clockwise until it is firmly closed.
4. Apply the emergency brake and use wheel chocks
to block all wheels to prevent any movement of the
vehicle being lifted.
5. Place the jack into position and adjust the extension
screw as needed.
6. Connect the air quick coupler into the shop air supply
hose quick coupler-female, and then turn on the air
valve.
7. Raise the load to desired height, turn off the air valve
and immediately USE JACK STANDS with adequate
capacity to support the load.
8. When air source is not available, insert the big end
of the handle into the handle bracket, and pump it
manually to raise the load to desired height. Then
immediately transfer the load to appropriate support
devices such as jack stands.
LOWERING VEHICLE
Be sure all tools and personnel are clear before lowering load.
WARNING: When work is done, raise load enough
to carefully remove the jack stands. Then SLOWLY and
CAREFULLY lower the load by turning the release valve
counterclockwise (use the slotted end of the handle) in
extremely small increments, then lower the extension screw by
turning it clockwise as needed and remove the jack.
Dangerous dynamic shock loads are created by quickly
opening and closing the release valve when the load
is being lowered. The resulting overload may cause
hydraulic system failure which could cause severe
personal injury and/or property damage.
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.
1. Clean the outside of the jack with dry, clean and soft
cloth and periodically lubricate the joints, extension
screw and all moving parts with light oil as needed.
2. When not in use, store the jack in a dry location with
ram (13) and extension screw (13.1) fully lowered.
3. Purge the hydraulic system to eliminate any air in the
system if jack efficiency drops or jack doesn’t work:
a. If manual operation performs poorly, use the slotted
end of the handle to turn the release valve 1-1/2 turns
counterclockwise and remove the oil filler plug (16)
by gently pulling, insert the handle into the handle
bracket and pump it 10 to 15 times, then replace the
filler plug.
b. If air operation performs poorly, connect the air
inlet fitting to air source, use the slotted end of
the handle to turn the release valve 1-1/2 turns
counterclockwise and remove the oil filler plug
(16) by gently pulling, turn on the air valve to let
the pump work for one minute, then replace the
filler plug.
4. Check the hydraulic oil: place the jack in an upright
position, completely lower the ram and remove the
filler plug, if it is not adequate, fill with high quality
hydraulic jack oil to the lower rim of the fill hole, purge
away air from the hydraulic system as described
above, top off with more hydraulic oil, then replace the
filler plug.
5. For best performance and longest life, replace the
complete jack oil at least once per year: With the ram
fully lowered, remove the oil filler plug, lay the jack on
its side and drain the oil into a suitable container, then
fill with high quality hydraulic jack oil as described
above, reinstall the filler plug.
NOTE: Dispose of hydraulic oil in accordance with local
regulations.

5
Operating Instructions and Parts Manual 24850
11/17
2017 OEMTOOLS™
20 TON
AIR/HYDRAULIC JACK
PARTS DIAGRAM

6
Operating Instructions and Parts Manual 24850
11/17
2017 OEMTOOLS™
20 TON
AIR/HYDRAULIC JACK
Item Description Quantity
1 Base 1
2 Ball 6
3 Seal 1
4Release Valve 1
5 Ball Cup 2
6 Spring 1
7 Spring 1
8 Screw 2
9 Nylon Ring 1
10 Cylinder 1
11 O-Ring 1
12 Cup Seal 1
13 Ram 1
13.1 Extension Screw 1
14 Packing 1
15 Reservoir 1
16 Filler Plug 1
17 Nylon Ring 1
18 Top Nut 1
19 O-Ring 1
20 Spring Plate 1
21 Spring 2
22 Eye Bolt 2
23 Nut 2
24 Lock Washer 2
25 Washer 1
26 Pump Cylinder 1
27 O-Ring 1
28 Nylon Ring 1
29 Back Up Ring 1
30 Piston 1
31 Pin 3
32 R-Pin 3
33 Connector 1
34 Handle Bracket 1
Item Description Quantity
PARTS LIST
35 Lock Lever 1
36 Lever 1
37 Nut 1
38 O-Ring 1
39 O-Ring 1
40 Packing 1
41 Throttle 1
42 Spring 1
43 Nut 1
44 Quick Coupler-Male 1
45 Valve Body 1
46 Screw 1
47 Air Hose 1
48 Air Motor 1
49 Ball 1
50 Ball Cup 1
51 Spring 1
52 Screw 1
53 O-Ring 1
54 Screw 1
55 Plastic Cap 1
56 Handle 2

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Operating Instructions and Parts Manual 24850
11/17
2017 OEMTOOLS™
20 TON
AIR/HYDRAULIC JACK
OEMTOOLS™90 DAY LIMITED WARRANTY
For 90 days from the original purchase of this product, OEMTOOLS™will warranty this item. If you find any defect in
material or workmanship, through normal usage, return it to the place of purchase or to OEMTOOLS™for repair or
replacement at our discretion. In order to obtain this service, send your tool and proof of purchase, transportation pre-paid,
to OEMTOOLS™Q.A. Dept., 3850 Raines Road #3, Memphis, TN 38118. We will not be responsible for lost or damaged
goods during transportation; please insure your package. 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.
OEMTOOLS™does not provide warranty for products labeled other than OEM®or OEMTOOLS™. OEMTOOLS™will not
provide any warranty for products subjected to abnormal use. Abnormal use includes, but is not limited to, abuse, accident,
alteration, neglect, and unauthorized or unreasonable use or repairs. This warranty does not cover bits, blades, files,
batteries, or calibration. We recommend that you maintain your tools and sharpen or replace blades, bits, files, and batteries
as necessary. OEMTOOLS™reserves the right to make any changes in construction or design at any time without any
obligation in incorporating such changes to tools or equipment previously sold.
OEMTOOLS™makes every effort to ensure 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. This warranty gives you specific legal rights, and you may also have other rights,
which vary from state to state.
Don’t forget to register your new OEMTOOLS™product at www.oem-tools.com.
CONTACT US
3580 E. Raines Road, Suite 3, Memphis, TN 38118
Tel: [phone]
www.oem-tools.com