Harbor Freight Tools Welding System 95951 User Manual

Auto A/C ReCoveRy /  
ReChARge MAChine  
Model 95951  
Set up And opeRAting inStRuCtionS  
Diagrams within this manual may not be drawn proportionally.  
Due to continuing improvements, actual product may differ slightly from the product described herein.  
®
distributed exclusively by harbor Freight tools .  
3491 Mission Oaks Blvd., Camarillo, CA 93011  
visit our website at: http://www.harborfreight.com  
Read this material before using this product.  
Failure to do so can result in serious injury.  
SAve thiS MAnuAl.  
©
®
Copyright 2007 by Harbor Freight Tools . All rights reserved. No portion of this  
manual or any artwork contained herein may be reproduced in any shape or form  
without the express written consent of Harbor Freight Tools.  
For technical questions or replacement parts, please call 1-800-444-3353.  
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3.  
1.  
keep bystanders, children, and visitors away while operating a powered ma-  
chine. Distractions can cause you to lose control. Protect others in the work area  
from debris fumes and oil. Provide barriers or shields as needed.  
eleCtRiCAl SAFety  
grounded machines must be plugged into an outlet properly installed and  
grounded in accordance with all codes and ordinances. never remove the  
grounding prong or modify the plug in any way. do not use any adapter plugs.  
Check with a qualified electrician if you are in doubt as to whether the outlet is  
properly grounded. If the machines should electrically malfunction or break down,  
grounding provides a low resistance path to carry electricity away from the user.  
2.  
3.  
double insulated machines are equipped with a polarized plug (one blade is  
wider than the other). This plug will fit in a polarized outlet only one way. If  
the plug does not fit fully in the outlet, reverse the plug. If it still does not  
fit, contact a qualified electrician to install a polarized outlet. Do not change  
the plug in any way. Double insulation eliminates the need for the three wire  
grounded power cord and grounded power supply system.  
Avoid body contact with grounded surfaces such as pipes, radiators, ranges,  
and refrigerators. There is an increased risk of electric shock if your body is  
grounded.  
4.  
5.  
do not expose powered machines to rain or wet conditions. Water entering a  
powered machine will increase the risk of electric shock.  
do not abuse the power Cord. never use the power Cord to carry the machines  
or pull the plug from an outlet. keep the power Cord away from heat, oil,  
sharp edges, or moving parts. Replace damaged power Cords immediately.  
Damaged Power Cords increase the risk of electric shock.  
6.  
When operating a powered machine outside, use an outdoor extension cord  
marked “W-A” or “W”. These extension cords are rated for outdoor use, and  
reduce the risk of electric shock.  
peRSonAl SAFety  
1.  
2.  
Stay alert. Watch what you are doing, and use common sense when operat-  
ing a powered machine. do not use a powered machine while tired or under  
the influence of drugs, alcohol, or medication. A moment of inattention while  
operating powered machines may result in serious personal injury.  
dress properly. do not wear loose clothing or jewelry. Contain long hair. keep  
your hair, clothing, and gloves away from moving parts in engine compartment.  
Loose clothes, jewelry, or long hair can be caught in moving parts in the machine.  
SKU 95951  
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3.  
4.  
Avoid accidental starting. Be sure the power Switch is off before plugging in.  
Leaving the Power Switch on while the machine is unattended invites accidents.  
Remove adjusting keys or wrenches before turning the powered machine on.  
A wrench or a key that is left attached to a rotating part of the powered machine  
may result in personal injury.  
5.  
6.  
do not overreach. keep proper footing and balance at all times. Proper foot-  
ing and balance enables better control of the powered machine in unexpected  
situations.  
use safety equipment. Always wear eye protection. Dust mask, nonskid safety  
shoes, hard hat, or hearing protection must be used for appropriate conditions. Al-  
ways wear ANSI-approved safety goggles and a dust mask/respirator when using  
or performing maintenance on this machine. Keep the work area well ventilated.  
tool uSe And CARe  
1.  
do not force the machine. use the correct machine for your application. The  
correct machine will do the job better and safer at the rate for which it is designed.  
Do not force the machine and do not use the machine for a purpose for which it is  
not intended.  
2.  
3.  
do not use the powered machine if the power Switch does not turn it on or  
off. Any machine that cannot be controlled with the Power Switch is dangerous  
and must be replaced.  
disconnect the power Cord plug from the power source before making any  
adjustments, changing accessories, or storing the machine. Such preventive  
safety measures reduce the risk of starting the machine accidentally. Always un-  
plug the machine from its electrical outlet before performing any inspection,  
maintenance, or cleaning procedures.  
4.  
5.  
Store idle machines out of reach of children and other untrained persons.  
Tools are dangerous in the hands of untrained users.  
Maintain machines with care. Properly maintained machines are less likely to fail  
and are easier to control. Do not use a damaged machine. Tag damaged machines  
“Do not use” until repaired.  
6.  
7.  
Check for misalignment or binding of moving parts, breakage of parts, and  
any other condition that may affect the machine’s operation. if damaged,  
have the machine serviced before using. Many accidents are caused by poorly  
maintained machines.  
use only accessories that are recommended by the manufacturer for your  
model. Accessories that may be suitable for one machine may become hazardous  
when used on another machine.  
SKU 95951  
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SeRviCe  
1.  
2.  
Tool service must be performed only by qualified repair personnel. Service or  
maintenance performed by unqualified personnel could result in a risk of injury.  
When servicing a machine, use only identical replacement parts. Follow  
instructions in the “Inspection, Maintenance, And Cleaning” section of this  
manual. Use of unauthorized parts or failure to follow maintenance instructions  
may create a risk of electric shock or injury.  
SpeCiFiC SAFety RuleS  
1.  
2.  
Maintain labels and nameplates on the machine. These carry important informa-  
tion. If unreadable or missing, contact Harbor Freight Tools for a replacement.  
Maintain a safe working environment. Make sure there is adequate surround-  
ing workspace. Do not use this product in a damp or wet location. Be sure there is  
adequate ventilation. Do not operate machine or vehicle in enclosed space.  
3.  
4.  
5.  
6.  
When using a handheld powered machine, always maintain a firm grip on the  
machine with both hands to resist starting torque.  
Avoid unintentional starting. Make sure you are prepared to begin work before  
turning on the machine.  
Always keep the extension cord away from moving parts on the machine or  
the vehicle.  
people with pacemakers should consult their physician(s) before using this  
product. Electromagnetic fields in close proximity to a heart pacemaker could cause  
interference to or failure of the pacemaker. In addition, people with pacemakers  
should adhere to the following:  
Avoid operating powered machines alone.  
Don’t use a powered machine with the power switch locked on.  
If powered via a power cord be certain that the machine is properly grounded. A  
ground fault interrupt (GFCI) system is also a good precaution. This inexpensive de-  
vice is a good safety measure because it prevents a sustained electrical shock.  
Properly maintain and inspect all machines before use to avoid electrical  
shock.  
7.  
8.  
only use R134A refrigerant with this machine. Do not use other refrigerants.  
Please see refrigerant discussion on page 12 of this manual for more information.  
Before servicing, check vehicle owner’s manual to confirm that A/C system will  
operate on R134A refrigerant.  
Before starting service, check to see that the recovery tank has space for ad-  
ditional coolant, there is replacement refrigerant in the coolant tank, and there  
REV 08k  
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is cooling oil in the cooling oil bottle. Check compressor oil level to determine  
it is within safe limits before starting service.  
9.  
do not expose this machine to direct sunlight or rain. Keep it in a well ventilated  
sheltered area.  
10.  
The refrigerant tank may only be filled to 80% capacity during the recovery  
operation. Check tank level before starting service to ensure that there is sufficient  
recovery space.  
11.  
there must be at least 1 kg (2.2 lb) of refrigerant in the coolant tank to perform  
the refilling operation. Do not attempt the refilling operation if there is less than 1  
kg (2.2 lb) of refrigerant in the coolant tank.  
12.  
13.  
14.  
15.  
16.  
the hp and lp valves on the Control panel must be in the CloSed position  
when attaching the machine to the auto A/C system.  
When servicing, keep all hoses away from hot parts and moving components  
of vehicle engine area to prevent hose damage.  
When running the vehicle, be sure it is in pARk or neutRAl with parking  
brakes locked and wheels chocked.  
never start the vehicle or operate the vehicle A/C system if the hose is con-  
nected to the hp system and the hp valve on the Control panel is open.  
WARning: the brass components of this product contain lead, a chemical  
known to the State of California to cause birth defects (or other reproductive  
harm). (California Health & Safety code § 25249.5, et seq.)  
gRounding  
WARning!  
improperly connecting the grounding wire can result in the risk of electric shock.  
Check with a qualified electrician if you are in doubt as to whether the outlet is  
properly grounded. do not modify the power cord plug provided with the tool.  
never remove the grounding prong from the plug. do not use the tool if the  
power cord or plug is damaged. if damaged, have it repaired by a service facil-  
ity before use. If the plug will not fit the outlet, have a proper outlet installed by  
a qualified electrician.  
gRounded toolS: toolS With thRee pRong plugS  
1.  
Tools marked with “Grounding Required” have a three wire cord and three prong  
grounding plug. The plug must be connected to a properly grounded outlet. If the  
machine should electrically malfunction or break down, grounding provides a low  
Rev 08a  
SKU 95951  
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resistance path to carry electricity away from the user, reducing the risk of electric  
shock. (See 3-prong plug and outlet.)  
2.  
3.  
The grounding prong in the plug is connected through the green wire inside the  
cord to the grounding system in the machine. The green wire in the cord must be  
the only wire connected to the machine’s grounding system and must never be at-  
tached to an electrically “live” terminal. (See 3-prong plug and outlet.)  
Your machine must be plugged into an appropriate outlet, properly installed and  
grounded in accordance with all codes and ordinances. The plug and outlet should  
look like those in the following illustration. (See 3-prong plug and outlet.)  
3-prong plug and outlet  
outlets for 2-prong plug  
douBle inSulAted toolS: toolS With tWo pRong plugS  
1.  
2.  
Tools marked “Double Insulated” do not require grounding. They have a special  
double insulation system which satisfies OSHArequirements and complies with the  
applicable standards of Underwriters Laboratories, Inc., the Canadian Standard  
Association, and the National Electrical Code. (See outlets for 2-prong plug.)  
Double insulated machines may be used in either of the 120 volt outlets shown in  
the preceding illustration. (See outlets for 2-prong plug.)  
extenSion CoRdS  
1.  
2.  
Grounded machines require a three wire extension cord. Double Insulated ma-  
chines can use either a two or three wire extension cord.  
As the distance from the supply outlet increases, you must use a heavier gauge  
extension cord. Using extension cords with inadequately sized wire causes a seri-  
ous drop in voltage, resulting in loss of power and possible machine damage.  
(See table A.)  
3.  
4.  
The smaller the gauge number of the wire, the greater the capacity of the cord. For  
example, a 14 gauge cord can carry a higher current than a 16 gauge cord.  
(See table A.)  
When using more than one extension cord to make up the total length, make sure  
each cord contains at least the minimum wire size required. (See table A.)  
SKU 95951  
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5.  
If you are using one extension cord for more than one machine, add the nameplate  
amperes and use the sum to determine the required minimum cord size.  
(See table A.)  
6.  
7.  
If you are using an extension cord outdoors, make sure it is marked with the suffix  
“W-A” (“W” in Canada) to indicate it is acceptable for outdoor use.  
Make sure your extension cord is properly wired and in good electrical condition.  
Always replace a damaged extension cord or have it repaired by a qualified electri-  
cian before using it.  
8.  
Protect your extension cords from sharp objects, excessive heat, and damp or wet  
areas.  
ReCoMMended MiniMuM WiRe gAuge FoR extenSion CoRdS*  
(120 oR 240 volt)  
nAMeplAte  
AMpeReS  
(at full load)  
extenSion CoRd length  
25 Feet  
50 Feet  
75 Feet 100 Feet 150 Feet  
0 – 2.0  
2.1 – 3.4  
18  
18  
18  
18  
18  
14  
12  
18  
18  
18  
16  
14  
12  
10  
18  
18  
16  
14  
12  
10  
-
18  
16  
14  
12  
10  
-
16  
14  
12  
12  
-
3.5 – 5.0  
5.1 – 7.0  
7.1 – 12.0  
12.1 – 16.0  
16.1 – 20.0  
tABle A  
-
-
-
* Based on limiting the line voltage drop to five volts at 150% of the rated amperes.  
SyMBology  
Double Insulated  
Canadian Standards Association  
Underwriters Laboratories, Inc.  
Volts Alternating Current  
V~  
Amperes  
A
No Load Revolutions per Minute (RPM)  
n xxxx/min.  
0
SKU 95951  
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unpACking  
When unpacking, check to make sure that the item is intact and undamaged. If any  
parts are missing or broken, please call Harbor Freight Tools at the number shown on the  
cover of this manual as soon as possible.  
ASSeMBly inStRuCtionS  
note: For additional information regarding the parts listed in the following pages, refer to  
the Assembly Diagrams near the end of this manual.  
1.  
2.  
WARning! Make sure the Power Switch of the tool is in its “OFF” position and  
that the tool is unplugged from the electrical outlet before making any adjustments  
to the tool.  
Remove the (4) Protection Bolts from the Electronic Scale before using this machine  
for the first time. The four Protection Bolts (see photo below) are fastened to the  
bottom of the machine. To do this:  
a. Use a 6mm wrench to remove the bolts. Turn them counterclockwise to loosen.  
Store the bolts in a safe place for future use.  
b. Use the Power ON/OFF Switch to turn on the machine.  
c. Press the “Recovering” and “Circulate” keys at the same time to reset the scale.  
The word “Good” will appear in the LED display if the scale is working properly.  
Protection Bolts  
3.  
4.  
Prior to shipping this machine, replace the Protection Bolts to lock the scale in place  
to prevent damage.  
Optional external coolant tank is discussed in this manual. This accessory is NOT  
INCLUDED with this machine and must be purchased separately. It is discussed  
here for your convenience.  
REV 09h  
SKU 95951  
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opeRAting inFoRMAtion  
lp gauge hp gauge indicators  
led display  
Circulate  
+
Recovering  
vacuumize  
Bp gauge  
Start/Stop  
Refilling  
lp valve  
hp valve  
Control panel gauges  
Please refer to the drawing on page 9 for Control Panel items.  
1.  
2.  
3.  
hp gauge: Displays pressure of the high pressure end of the auto A/C system.  
lp gauge: Displays pressure of the low pressure end of the auto A/C system.  
Bp gauge: Displays pressure of the refrigerant tank of this machine.  
indicator lights  
1.  
Recovering: When lighted, indicates that the machine is performing the recovery  
operation.  
2.  
3.  
vacuumize: When lighted, indicates that the machine is generating vacuum.  
Refilling: When lighted, indicates that the machine is refilling the auto system. New  
refrigerant is being added.  
4.  
5.  
drain: When lighted, indicates that the machine is draining used cooling oil from  
the auto A/C system.  
hp / Bottle Full: During the Recovery process when the light is on, it indicates either  
that the HP pressure has reached or exceeded 240 PSI. The Recovery process  
will halt until the pressure has automatically lowered to 180 PSI or less. If the pres-  
sure is within safe bounds and this light comes on, it indicates that the Refrigerant  
Tank is full, weighing over 14 kg. The Refrigerant Tank must be partially emptied to  
continue the recovery process.  
REV 09h  
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6.  
Bottle empty: During the Refilling Process, if the Refrigerant Tank contains less  
than 1 kg of fluid, the process will stop and the indicator light will come on. The  
bottle must be refilled before continuing the Refilling Process.  
lCd display  
1.  
2.  
When the “kg” indicator light is on, the value shown in the LCD Display is the re-  
covered or refilled refrigerant weight.  
When the “MIN” indicator light is on the LCD Display shows the Vacuuming Time  
in Minutes.  
valve Controls  
lp valve: Low Pressure Control Valve.  
hp valve: High Pressure Control Valve.  
1.  
2.  
Function keys  
1.  
“+” key: Press this Key to adjust the setup value. Each press of the Key increases  
the set value by 1.  
2.  
3.  
“Circulate”: Press this Key to lock in the value set using the + Key.  
“Recovering”: Press this Key to initiate the refrigerant recovery operation. Dur-  
ing the Recovery operation, pressing this Key will toggle the LCD display between  
“Setup Value” and “Actual Recovery Value.”  
4.  
5.  
6.  
“vacuumize”: Press this Key to initiate the vacuum generation operation.  
“Refilling”: Press this Key to initiate the Refilling operation.  
“Start / Stop” : Press this Key to start or stop the current operation.  
WARning: Do not use any refrigerant other than factory specified R134A (also  
identified as 134A, Forane 134a or HFC-134a) in an automotive A/C system.  
use of Freon or other Fluorocarbons is prohibited by uS law.  
WARning: do not inhAle or hAndle ReFRigeRAnt. inhalation of high concen-  
trations of refrigerant is harmful and may cause heart irregularities, dizziness,  
central nervous effects, unconsciousness or death. intentional misuse or  
deliberate inhalation may cause death without warning. vapor reduces oxy-  
gen available for breathing and is heavier than air. decomposition products  
of refrigerant are also hazardous. Contact with liquid refrigerant can cause  
injury including frostbite.  
REV 09h  
SKU 95951  
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opeRAtion  
preparation  
1.  
Before operation, check the Vacuum Pump oil level. Do this by looking through  
the opening on the lower right side of the back panel. You will be able to see the  
vacuum pump oil reservoir. The level must be between the MIN and MAX mark-  
ings. If the oil level is low, open the back of the machine, remove the cap of the oil  
reservoir and fill to the MAX line with good quality compressor oil. Replace the oil  
cap and back of machine before beginning operation. DO NOT OPERATE THIS  
MACHINE WITHOUT ADEQUATE OIL IN THE VACUUM PUMP, SEVERE DAM-  
AGE WILL RESULT.  
2.  
WARNING: TheA/C (air conditioning) system is under high pressure. Do not loosen  
any hose fittings or remove any components until after the system has been com-  
pletely discharged and depressurized. Removal or loosening of a component while  
the system is under pressure can cause severe personal and property damage or  
injury.  
Checking the vehicle A/C System  
1.  
2.  
Check the vehicle compressor drive belt. If it is worn or cracked, it should be re-  
placed before any other service is performed.  
Check the vehicle system hoses. Look for cracks, bubbles, hard spots and dete-  
rioration. Inspect all hoses and fittings for leaks and refrigerant seepage. If there  
is any evidence of wear, replace the damaged parts before performing any other  
service.  
note: Use of a leak detector kit (not included) is recommended.  
3.  
1.  
2.  
Inspect the compressor fins for debris that may be impeding heat dispersion of the  
compressor. Clean between the fins with a tool or compressed air.  
Attaching the Recovery / Recharge Machine  
Operate the vehicle A/C system on “High” for a few minutes to pressurize the sys-  
tem. Turn the vehicle OFF. WARning: opening the hp valve while the vehicle  
is running with the A/C system on can cause the refrigerant tank to break or  
explode.  
Close the LP and HP valves on the Control Panel of the machine.  
WARning: Check vehicle service manual to identify with certainty the correct system  
connections.  
3.  
Connect the High Pressure hose to the high pressure connector of the machine and  
high pressure connector of the vehicle A/C system, and the Low Pressure hose to  
REV 09h  
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the low pressure connector of the machine and the low pressure connector of the  
vehicle A/C system.  
4.  
5.  
Turn the Power Switch to the ON position. The Power Switch is located on the up-  
per left side of the machine.  
The “kg” Indicator light will come on, and the LCD Display will show the net weight  
of refrigerant in the tank. If the tank is nearly full, (capacity 14 kg) you may not be  
able to recover the refrigerant in the vehicle A/C system.  
6.  
7.  
Open the HP and LP Valves located on the Control Panel of the machine.  
Read pressure shown on the HP and LP Pressure Gauges on the Control Panel.  
note: If the pressure on either gauge is less than 22 PSI, it indicates that the system  
needs repair. There is probably a leak which does not allow the automotive system  
to maintain pressure.  
Clearing the hoses  
1.  
2.  
With the vehicle turned OFF, and the hoses connected, it is necessary to remove  
air from the hoses and machine before beginning the recovery process. To do this,  
run the Vacuuming process.  
Press the “Vacuumize” Key on the control panel. The LED Display will show the  
default time setting for the Vacuuming process.  
3.  
4.  
5.  
Press “+” to set Vacuuming time. 3-5 minutes is recommended.  
Close the HP and LP Valves on the Control Panel.  
Press the “Start / Stop” Key to begin the vacuuming process.  
Recovery  
1.  
2.  
3.  
4.  
Once the hoses have been cleared, you can run the “Recovery” process.  
Open the HP and LP valves on the Control Panel.  
Press the “Recovering” Key on the Control Panel.  
The LCD Display will show the default number of kilograms of refrigerant to be re-  
covered. Check the vehicle specifications to determine the correct amount for that  
vehicle. Press the “+” Key repeatedly to set the correct value.  
5.  
6.  
Press the “Start / Stop” Key to begin the recovery process.  
During the recovery process, you can monitor progress by pressing the “Recover-  
ing” Key. The LCD Display will toggle between the preset recovery target value and  
the current recovery value.  
REV 09h  
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7.  
8.  
Machine will run automatically until correct amount of refrigerant is removed.  
When the pressure of both the HP and LP system are near “0”, the system will  
automatically reset to run approximately 1 minute longer. After that, there is a 20  
second oil drain period. The machine will then automatically shut off.  
9.  
Machine will shut off and alarm will sound to signal process is completed.  
understanding and resolving problems during the recovery process  
1.  
Ifduringtherecoveryprocessthepressureexceedssafelimits, therefrigerantbottlebe-  
comesfull,ornorefrigerantisrecoveredforaminute,thesystemwillstopautomatically.  
Depending on the reason for shut down, an alarm may sound, and the “HP/Bottle Full”  
indicator may light. If this happens, resolve the problem before restarting the process.  
2.  
3.  
4.  
If the system pressure exceeds 240 PSI, the machine will shut down an alarm will  
sound, and the “HP / Bottle Full” light will come on. Reduce the pressure to below  
180 PSI, then press the “Start / Stop” Key to restart the process.  
If the Refrigerant Bottle becomes full during the recovery process, the operation  
will shut down, an alarm will sound, and the “HP / Bottle Full” light will come on.  
Remove some refrigerant from the bottle before restarting the process.  
If weight of refrigerant tank does not increase for a minute, it indicates that no refrig-  
erant is being recovered. This may mean the auto A/C system is empty, the HP or  
LP valve is closed, a hose is blocked, or other problem. The process will shut down,  
and an alarm will sound. Resolve the problem before restarting the process.  
5.  
Do not operate machine more than 10 times in an hour. Doing so may overheat  
compressor. If overheated, machine will automatically shut down and alarm will  
sound. Allow machine to rest for at least 5 minutes before attempting restart.  
vacuuming the System  
1.  
2.  
After recovering the refrigerant in the autoA/C system, you must vacuum the system  
to remove all remaining contaminants.  
The LP and HP hoses are still connected from running the Recovery Process. The  
HP and LP Valves are open on the Control Panel. NOTE: The Vacuuming Process  
will not run if the system pressure is above 35 PSI. The recovery process must be  
run to reduce system pressure.  
3.  
4.  
Press “Vacuumize” Key on the Control Panel. The LCD Display will show the default  
time preset for the vacuum process. Using the “+” Key adjust the time as required.  
Typically, vacuuming should proceed for 20-30 minutes. Newer or more regularly  
serviced systems can run 20 minutes. Dirtier systems should run 30 minutes.  
Press “Start / Stop” Key on the Control Panel to begin the Vacuuming Process.  
REV 09h  
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5.  
1.  
The LCD Display will count down the time remaining in the process. When the time  
reaches “0” the process will automatically stop.  
Refilling the Automotive System with Oil and Refrigerant  
Vehicle manufacturers design for and specify a specific amount of refrigerant for  
best operation of your vehicle A/C system. This amount is specified in weight. Too  
much or too little refrigerant will adversely effect the operation of the A/C system.  
Some newer vehicles will shut down the A/C system if too much refrigerant is in  
the system.  
2.  
After recovery, check the amount of used oil separated from the automotive sys-  
tem, and be sure there is at least 20 ml more new oil in the New Oil bottle than the  
amount removed. If there is not enough oil in the bottle, close the Oil Charge Valve  
(I-9) and add oil to the new oil bottle.  
3.  
4.  
Check to be sure the HP and LP valves on the Control Panel are open.  
Slowly open the Oil Charge Valve (I-9) allowing new oil to be sucked into the au-  
tomotive A/C system. Do not open the valve all the way, rather, use it carefully to  
control the flow of oil. Allow oil to flow into the system until 10 ml more than the  
amount removed has been added back.  
5.  
6.  
When sufficient oil has flowed back into system, close Oil Charge Valve.  
Press the “Refilling” Key on the Control Panel. The machine will begin to replace  
refrigerant in the vehicle A/C system. The Refilling Indicator light will be on.  
7.  
NOTE: If the refilling process is taking too long, you can speed the process by using  
the vehicle A/C compressor. Turn off the HP valve on the machine Control Panel.  
WARning! never turn the vehicle A/C system on if the hp valve is open. Turn the  
vehicle A/C system on. The refilling process will go faster.  
8.  
9.  
After system has been completely refilled, the machine will stop automatically.  
Close both the HP and LP valves on the Control Panel. Move the Power Switch to  
the OFF position. If the vehicle A/C system is running, turn it off.  
10.  
11.  
Slightly loosen the hose connector, allow a few seconds to stabilize any existing pres-  
sure in the hoses, and then back off the hose connectors and remove the hoses.  
Always test the vehicle A/C system before returning the vehicle to the customer.  
Refilling Using an External Refrigerant Tank (Not Included)  
note: For more accurate refilling, use the internal tank process as discussed pages 15 - 16.  
note: Make sure the LP and HP Valves on the control panel on the machine are closed.  
REV 09h  
SKU 95951  
For technical questions, please call 1-800-444-3353.  
Page 15  
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1.  
2.  
3.  
4.  
Connect the Low Pressure hose to the vehicle A/C system.  
Disconnect the High Pressure (HP) hose from the auto A/C system.  
Disconnect HP hose from the High Pressure Connector on the Left Side Panel.  
Using the High Pressure Hose, connect the Oil Drain Valve (I-13) to the valve of  
the External Tank (not included).  
5.  
6.  
7.  
Open the HP and LP Valves on the Control Panel. If the gauges show more than 29  
PSI, perform the recovery operation discussed on page 14 before proceeding.  
Close Oil Drain Valve and Tank Filling Valve. Run Vacuuming Process for the HP and  
LP Hoses and auto A/C system as discussed on page 13 “Clearing the Hoses”.  
Add new cooling oil by opening the oil valve as discussed on page 15 “Refilling the  
Automotive System with Oil and Refrigerant”. NOTE: Always add cooling oil before  
adding refrigerant.  
8.  
9.  
Open the Oil Drain Valve (I-13). Gradually open the External Tank Valve.  
The new refrigerant will be drawn into the vehicle A/C system due to the vacuum  
created in step 6 above.  
10.  
If the refilling process is slow, you may speed things up by starting the vehicle and  
turning on the A/C system.  
inSpeCtion, MAintenAnCe, And CleAning  
1.  
2.  
WARning! Make sure the Power Switch of the tool is in its “OFF” position and  
that the tool is unplugged from the electrical outlet before performing any inspec-  
tion, maintenance, or cleaning procedures.  
BeFoRe eACh uSe, inspect the general condition of the tool. Check for loose  
screws, misalignment or binding of moving parts, cracked or broken parts, damaged  
electrical wiring, leaking valves, damaged hoses, and any other condition that may  
affect its safe operation. If abnormal noise, leaking or vibration occurs, have the  
problem corrected before further use. do not use damaged equipment.  
MAintenAnCe ChARt  
Before  
use  
After  
use  
Maintenance type  
Inspect tool for damage  
(see #2, above)  
x
Wipe off with clean, moist  
cloth  
x
Check Refrigerant and  
Cooling Oil level  
x
x
Check Compressor Oil Level  
REV 09h  
SKU 95951  
For technical questions, please call 1-800-444-3353.  
Page 16  
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pARtS liSt  
For ease of understanding, the components of this machine are displayed in groups.  
Each group is identified with a Roman Numeral. Components within each group are identi-  
fied with the group numeral plus a part number. For example “IV-3” is Part 3 in Group IV.  
Group I : Left Panel Assembly  
Group II : Bottom Panel Assembly  
Group III : Front Panel Assembly Group IV : Right Panel Assembly  
Group V : Control Panel Assembly Group VI : Back Panel Assembly  
part  
I-1  
I-2  
I-3  
I-4  
I-5  
I-6  
I-7  
I-8  
I-9  
description  
Left Side Panel  
Q’ty  
1
part  
II-6 Mat  
description  
Q’ty  
1
II-7 Scale Tray  
1
Load Cell Controller  
Pressure Controller A  
Mounting Bracket 1  
Transformer  
1
II-8 Refrigerant Cylinder  
III-1 Front Panel  
III-2 Dryer and Filter  
III-3 Separator  
1
1
1
1
1
1
1
Pressure Controller B  
Mounting Bracket 2  
Hose Connector  
1
III-4 Solenoid  
1
1
IV  
Right Side Panel  
1
4
V-1 Control Panel  
1
Oil Charge Valve  
1
V-2 Main Control Board with LCD  
V-3 Key Pad  
1
I-10 Quick Coupler  
I-11 Oil Bottle  
1
1
1
V-4 High Pressure (HP) Gauge  
V-5 Low Pressure (LP) Gauge  
V-6 Cylinder Gauge  
1
I-12 Separator  
1
1
I-13 Oil Drain Valve  
II-1 Bottom Panel  
II-2 Vacuum Pump  
II-3 Caster Wheel  
II-4 Compressor  
II-5 Scale Weight Sensor  
1
1
1
V-7 Low Pressure (LP) Valve  
V-8 High Pressure (HP) Valve  
VI-1 Back Panel  
1
1
1
4
1
1
1
please Read the Following Carefully  
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY  
DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR  
DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT  
HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS  
QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR  
DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE  
UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUY-  
ER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL  
PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION  
OF REPLACEMENT PARTS THERETO.  
SKU 95951  
For technical questions, please call 1-800-444-3353.  
Page 17  
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Auto A/C Recovery / Recharge Machine Component groups  
SKU 95951  
For technical questions, please call 1-800-444-3353.  
Page 18  
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group i left Side panel Assembly  
SKU 95951  
For technical questions, please call 1-800-444-3353.  
Page 19  
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group ii Bottom panel Assembly  
SKU 95951  
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group iii Front panel Assembly and group v Control panel Assembly  
SKU 95951  
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liMited 90 dAy WARRAnty  
Harbor Freight Tools Co. makes every effort 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 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.  
To take advantage of this warranty, the product or part must be returned to us with  
transportation charges prepaid. Proof of purchase date and an explanation of the com-  
plaint must accompany the merchandise. 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.  
This warranty gives you specific legal rights and you may also have other rights  
which vary from state to state.  
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353  
Record product’s Serial number here:  
note: If product has no serial number, record month and year of purchase instead.  
note: Some parts are listed and shown for illustration purposes only, and are not available  
individually as replacement parts.  
SKU 95951  
For technical questions, please call 1-800-444-3353.  
Page 22  
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