OEM Tools 24500 Service manual

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.
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.
The following safety information is provided as a guideline to help you operate your A/C Vacuum Pump 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 may result in serious
injury. In addition, make certain that anyone that uses the equipment understands and follows these safety
instructions as well.
Operating Instructions and Parts Manual 24500
03/14
2014 ©OEM-TOOLS
FOR CUSTOMER SERVICE
Technical Question?
CALL 1-866-458-2472
[email protected]
1.8 CFM SINGLE STAGE
VACUUM PUMP
WARNING
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 led with carrier.
Do not use product if broken,
bent, cracked or damaged parts
(including labels) are noted.

2
Operating Instructions and Parts Manual 24500
1.8 CFM SINGLE STAGE
VACUUM PUMP
03/14
2014 ©OEM-TOOLS
Thank you very much for choosing an OEMTools
Product!
For future reference, please complete the owner’s
record below:
Part# _______________ 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 machine is designed for certain applications only.
OEMTools cannot be responsible for issues aris-
ing from modication. We strongly recommend this
machine is not modied and/or used for any applica-
tion other than that for which it was designed. If you
have any questions relative to a particular applica-
tion, DO NOT use the machine until you have rst
contacted OEMTools to determine if it can or should
be performed on the product.
For technical questions please call 1-866-458-2472.
IMPORTANT INSTRUCTIONS
AND SAFETY RULES
• Keep bystanders, children, and visitors away
while operating the OEMTools A/C Vacuum Pump.
Distractions can cause you to lose control. Protect
others in the work area from injury.
• Stay alert. Watch what you are doing, and use
common sense when operating the OEMTools A/C
Vacuum Pump. Do not use the tool while tired or
under the inuence of drugs, alcohol, or medication.
A moment of inattention while operating the tool may
result in serious personal injury.
• Do not overreach. Keep proper footing and balance
at all times. Proper footing and balance enables
better control of the power tool in unexpected
situations.
• Use safety equipment.
• Wear ANSI-approved safety glasses underneath
a full face safety shield. Nonskid safety shoes,
hard hat, or hearing protection must be used for
appropriate conditions.
• Do not force the tool. Use the correct tool for your
application. The correct tool will do the job better
and safer at the rate for which it is designed.
• Store idle tools out of reach of children and other
untrained persons. Tools are dangerous in the hands
of untrained users.
• Maintain tools with care.
• Keep tools dry and clean.
• 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.
• Check for misalignment or binding of moving parts,
breakage of parts, and any other condition that may
aect the tool’s operation.
• If damaged, have the tool serviced before using.
Many accidents are caused by poorly maintained
tools.
• 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.
• Tool service must be performed only by qualied
repair personnel. Service or maintenance performed
by unqualied personnel could result in a risk of
injury.
• 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.
• 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.
• Maintain labels and nameplates on this product.
These carry important information. If unreadable or
missing, contact OEMTools for a replacement.
• Keep the handle dry, clean, and free from brake uid,
oil, and grease.
• 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.
• To reduce the risk of discomfort, illness, or death,
read, understand, and follow the following safety
instructions. Avoid breathing A/C refrigerant and
lubricant vapor mist. Exposure may irritate eyes,
nose, and throat. To remove R134a from the A/C
system, use service equipment certied to meet
the requirements of SAE J2788--R134a recycling
equipment. Additional health and safety information
may be obtained from refrigerant and lubricant
manufacturers.
• Always perform vehicle service in a properly

3
Operating Instructions and Parts Manual 24500
1.8 CFM SINGLE STAGE
VACUUM PUMP
03/14
2014 ©OEM-TOOLS
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.
• Engine parts that are in motion and unexpected
movement of a vehicle can injure or kill. When
working near moving engine parts, wear snug t
clothing and keep hands and ngers 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. The unexpected
movement of a vehicle can injure or kill. When
working on vehicles always set the parking brake or
block the wheels.
• Be alert for hot engine parts to avoid accidental
burns.
• When under pressure, refrigerants become liquid.
When accidentally released from the liquid state they
evaporate and become gaseous. As they evaporate,
they can freeze tissue very rapidly. When these
gases are breathed in, the lungs can be seriously
damaged. If sufcient quantities are taken into the
lungs, death can result. If you believe you have
exposed your lungs to released refrigerant, seek
immediate medical assistance. Refrigerants can
cause frostbite and severe burns to exposed skin.
Refrigerants are under pressure and can be forcibly
sprayed in all directions if carelessly handled. Avoid
contact with refrigerants and always wear protective
gloves and make certain other exposed skin is
properly covered. Refrigerants can also severely
injure or cause permanent blindness to unprotected
eyes. Avoid contact with refrigerants and always
wear safety goggles.
• Avoid accidental re and/or explosion. Do not
smoke near engine fuel and battery components.
• 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.
• 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.
• This product contains one of more chemicals known
to the State of California to cause cancer or birth
defects or other reproductive harm. Wash hands
thoroughly after handling.
DISPOSAL
• At the end of the useful life of the OEMTools
A/C Vacuum Pump dispose of the components
according to all state, federal, and local regulations
• All technicians opening the refrigeration circuit in
automotive air conditioning systems must now
be certied in refrigerant recovery and recycling
procedures to be in compliance with Section 609
of the Clean Air Act Amendments of 1990. For
information on certication call MACS Worldwide
at [phone].
GENERAL INFORMATION
ONLY QUALIFIED SERVICE PERSONNEL SHOULD OPERATE
THIS UNIT. SOME STATES MAY REQUIRE THE USER
TO BE LICENSED. PLEASE CHECK WITH YOUR LOCAL
GOVERNMENT AGENCY.
• DANGER - Avoid breathing refrigerant vapors and
lubricant vapor mist. Breathing high concentration
levels may cause heart arrhythmia, liss of
consciousness, or even suocation.
• DANGER - ELECTRICAL SHOCK HAZARD - Always
disconnect power source when servicing this
equipment.
• WARNING - Do not operate the vacuum pump on
systems under pressure. Damage to the pump may
occur.
• CAUTION- To reduce the risk of re, avoid the use of
extension cords thinner than NO. 14 awg. (2,5mm²)
to prevent the overheating of this cord please keep
length to a minimum.
• CAUTION-Do not use this equipment in the vicinity
of spilled or open containers of gasoline or other
ammable substances. Make certain that all safety
devices are functioning properly before operating the
equipment.
• CAUTION:THISEQUIPMENTISINTENDEDFORUSE
OFFINALEVACUATIONOFAREFRIGERANTSYSTEM.
THEEVACUATIONOFMATERIALSABOVE5PSIGMAY
CONTAMINATEORDAMAGETHEVACUUMPUMP.
CAUTION:DONOTRUNTHISEQUIPMENTWITHLOWORNO
OIL.RUNNINGTHISEQUIPMENTWITHNOLUBRICATION
WILLCAUSEPREMATUREFAILURE.

4
Operating Instructions and Parts Manual 24500
1.8 CFM SINGLE STAGE
VACUUM PUMP
03/14
2014 ©OEM-TOOLS
Thank you for purchasing the OEM®
A/C vacuum pump series. Our vacuum pumps are
specifically designed for the air-conditioning and refrigeration service industry.
The
vacuum pumps utilize an electrical motor and oil filled rotary
vacuum pump cartridge
construction.
Features:
• Equipped with oil mist free exhaust port
• Sure-Grip handle, ergonomically designed for superior comfort and portability
• Reinforced base provides extreme shock resistance
• Air cooled motor design allows for operation under high temperature conditions
• Equipped with 1/4" SAE and 1/2" ACME Male inlet tees.
• Accessible oil drain port & sight glass make both oil maintenance and accuracy easy
To help you get a good start, please continue to carefully read the balance of this manu-
al. This manual contains important information on the proper procedures for operating
this equipment. Please pay close attention to the:
Safety Information, Warnings, and
Cautions provided throughout this manual.
ALWAYS REMEMBER “ SAFETY FIRST ”
Introduction

5
Operating Instructions and Parts Manual 24500
1.8 CFM SINGLE STAGE
VACUUM PUMP
03/14
2014 ©OEM-TOOLS
Specifications
Model Number 24500
Stages 1
Motor Size (HP)
RPM @ 50/60Hz
1.8 CFM / 1/4 HP
2880 / 3440
Dimensions (Inches) 9.4 x 3.6 x 7.8
Weight 8.1 lb / 3.6 kg
Operating Temperature
Range 0˚C (32˚F) to 52˚C (125˚F)
Power Source 115 VAC 50 - 60Hz
Ultimate Vacuum as low as 75 Microns
Oil Capacity 6.5 oz / 200 ml
Construction Heavy Gauge Aluminum Chasis with reinforced base and
rubber lined steel handle
Overload Protection Motor Thermally Protected, Dual Voltage units have
extra IEC fuse
Control System ON-OFF power switch
Intake Fittings 1/4" SAE and 1/2" ACME Male
Free Air Displacement 1.8 CFM @ 60Hz - 48 l/m @ 50Hz

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Operating Instructions and Parts Manual 24500
1.8 CFM SINGLE STAGE
VACUUM PUMP
03/14
2014 ©OEM-TOOLS
Unit Layout
Handle
Reinforced Base
Exhaust / Oil Refill Cap
Oil
Sightglass
Oil Drain
1/2" ACME x
1/4" SAE
Inlet Port
Power Cord
(Not Shown)
Oil Reservoir
Unit consists of:
• OEM®24500 model vacuum pump
• Vacuum pump oil
• Operational manual

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Operating Instructions and Parts Manual 24500
1.8 CFM SINGLE STAGE
VACUUM PUMP
03/14
2014 ©OEM-TOOLS
Initial Preparation
1. Connect vacuum pump to the proper voltage power supply.
2. The vacuum pump is shipped without oil in the reservoir. Remove the exhaust/oil fill
cap and add oil until it is seen in the middle of the oil sight glass. Re-secure cap.
3. Remove the 1/4" inlet service port cap, turn on the vacuum pump. After 15 seconds,
replace 1/4 cap back on inlet port.
4. Re-check vacuum pump oil level. Add or remove oil if necessary.
To achieve good final vacuum levels, the oil level should be visually seen through sight
glass.
CAUTION: DO NOT RUN THIS EQUIPMENT WITH LOW OR NO OIL. RUNNING THIS
EQUIPMENT WITH NO LUBRICATION WILL CAUSE PREMATURE FAILURE.
VACUUM PUMP IS NOW READY FOR USE.
Vacuum Pump Operation
WARNING: Do not operate on systems under pressure.
Damage to the pump may occur.
1. Check the correct power supply outlet to
be used.
2. Connect vacuum pump to the proper
voltage power supply
3. Check oil level in vacuum pump.
4. Connect vacuum pump as shown in
Figure - 1.
5. Open manifold valves.
6. Turn vacuum pump power switch “ON”.
7. Run vacuum pump until final vacuum
level is met.
8. Once the final vacuum level is reached,
close manifold valves, turn power switch
“OFF”.
VACUUM OPERATION COMPLETE

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Operating Instructions and Parts Manual 24500
1.8 CFM SINGLE STAGE
VACUUM PUMP
03/14
2014 ©OEM-TOOLS
Routine Maintenance
It is recommended to change the vacuum pump oil after 50 hours of usage. The purity
of the oil will determine the final vacuum level achieved. Always use the recommended
vacuum pump oil. The oil provided with the pump has been specially blended to maintain
maximum viscosity at normal running temperatures as well as cold weather starts.
OIL CHANGE PROCEDURES:
1. Be sure the pump oil is warmed up. if not warm, turn vacuum pump “ON” for 10
minutes.
2. Make sure vacuum pump is not plugged in.
3. Remove the oil drain cap and drain the contaminated oil into a suitable container. Tilt
the vacuum pump toward the oil drain port.
4. Once all the oil has been drained, re-secure the oil drain cap back onto the oil drain
port.
5. Remove the exhaust / oil fill cap and add oil until it is seen in the middle of the oil sight
glass. Re-secure exhaust/oil fill cap.

9
Operating Instructions and Parts Manual 24500
1.8 CFM SINGLE STAGE
VACUUM PUMP
03/14
2014 ©OEM-TOOLS
Troubleshooting Chart
Condition Possible Problem Solution
Unusually noisy
1. Bad bearings.
2. Loose motor bolts.
3. Coupling drive.
4. Dirty, low, or improper oil.
5. Air leaks in connections.
1. Replace motor.
2. Tighten bolts.
3. Adjust or replace coupling.
4. Replace oil.
5. Fix leaks.
High temperature
1. Low or improper voltage.
2. Worn bearings.
3. Low oil level.
1. Check power source
voltage.
2. Replace motor.
3. Add or replace.
Poor vacuum
1. System leaks.
2. Low oil level.
3. Dirty oil.
4. Air leaks at connection.
5. Air leak through seal.
6. Worn rotary mechanism.
1. Fix leaks.
2. Add or replace oil.
3. Flush and replace oil.
4. Fix leaks.
5. Replace shaft seal.
6. Replace pump.
Oil leaks
1. Oil leaks through exhaust.
2. Oil leaks through shaft seal.
3. Oil leaks through
reservoir.
4. System vented pressure.
5. Pump tipped over.
1. Oil level too high.
2. Replace shaft seal.
3. Tighten bolts or replace
gasket.
4. Check oil level.
5. Check oil level.
Pump does not start
1. No power to motor.
2. Damaged motor.
3. Thermal cutout.
1. Check power cord.
2. Replace motor.
3. Wait for thermal switch
to reset. Check for cause of
thermal.
Thermal cutout
1. Low or incorrect voltage.
2. Cold weather.
3. Dirty Oil.
1. Check voltage, supply.
2. Start and run vacuum
pump with the intake
fitting closed for 1 minute
to warm up oil.
3. Flush and replace oil.

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Operating Instructions and Parts Manual 24500
1.8 CFM SINGLE STAGE
VACUUM PUMP
03/14
2014 ©OEM-TOOLS
LIMITED ONE YEAR WARRANTY
From one year from the original purchase date of this product, OEM-TOOLS will warranty this product. If you
nd 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., 3580 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 veries 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, les, batteries, or calibration. We recommend that you maintain your tools and sharpen or
replace blades, bits, les, and batteries as necessary. OEMTOOLS reserves the right to makes 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 eort 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 one year 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 specic legal rights, and you may
also have other rights, which vary from state to state.
Contact Us
PLEASE READ THE FOLLOWING CAREFULLY
OEMTOOLS and/or it’s distributors have provided the parts list and assembly diagram as a reference only.
Neither OEMTOOLS and/or it’s distributors make any representation or warranty of any kind to the buyer
and/or user of this tool that he or she is qualied to do any repairs or replace any parts of this product.
OEMTOOLS and it’s distributors expressly state that all repairs or parts replacement should be done by cer-
tied or licensed technicians. The buyer assumes all risk and liability arising out of his or her repairs or parts
replacement to the original production.
OEMTOOLS®
3580 E. Raines Rd. #3, Memphis, TN 38118
TEL: [phone]
e-mail: [email protected]