OPERATOR’S MANUAL
TP-9364
Electronic Refrigerant Leak Detector
English
Declaration of Conformity
This is to certify that this equipment, designed and supplied by Tracer Products, a division of Spectronics Corporation, 956 Brush Hollow Road, Westbury, New York 11590, USA, meets the essential safety requirements of the European Union and is placed on the market accordingly. It has been constructed
in accordance with good engineering practice in safety matters in force in the Community and does not endanger the safety of persons, domestic animals or property when properly installed and maintained and used in applications for which it was made.
Equipment Description |
PRO-Alert 2791™ Electronic |
|
Refrigerant Leak Detector |
Applicable Directives |
73/23/EEC as amended by 93/68/EEC |
|
89/336/EEC as amended by 93/68/EEC |
|
2002/95/EC (RoHS) |
Applicable Standards |
EN61010-1: 2001; EN61326-1 |
|
A2:2000 Industrial |
CE Implementation Date |
December 8, 2003 |
Any questions relative to this declaration or to the safety of this product should be directed, in writing, to Tracer Products’ Customer Service Department at the address above.
WARNING
This symbol is used to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying this instrument.
Tracerline® PRO-Alert 2791™ Features
The PRO-Alert 2791 Electronic Refrigerant Leak Detector uses an innovative infrared absorption sensing cell that is extremely sensitive to all refrigerants, including R-134a and all HFCs.
•1,000-hour infrared cell life for low cost of ownership
•Infrared cell does not weaken over time, so response remains consistent and accurate
•High-efficiency air sampling pump provides quick response and quick clearing (“zeroing”)
•NiMH battery is environmentally friendly, won’t corrode, and provides greater charging capacity
•Ability to run off 12-volt or AC power adapter/charger
To get the best performance from your PRO-Alert 2791, please read this manual carefully before you start using the product. If you have any questions or need additional assistance, please call Tracer Products’ Customer Service Department at 1-800-641-1133 (outside the USA and Canada, call 1-516-333-1254).
Probe Cap
|
Filter |
|
High/Med/Low |
Cartridge |
|
Tip |
||
Indicators |
||
On/Off Switch |
Green/Yellow |
|
|
||
|
LEDs |
|
Charge Indicator |
Flexible Probe |
|
High/Med/Low |
||
|
||
Power |
Sensitivity |
|
Switch |
||
Jack |
||
|
||
|
IR Cell |
|
|
Access Door |
|
|
Rubberized Grip |
Power Cell
Compartment
Headphone
Jack
2
Getting Started
The PRO-Alert 2791 is shipped with the infrared cell and power stick installed. The nickel/metal hydride batteries in the power stick are not yet charged. To charge them, connect the cord of the AC charger/ adapter to the power jack at the rear of the instrument, and plug the adapter into the appropriate mains outlet. The battery charging light (rear left side) will flash when the detector is charging, changing to steady illumination when the power stick is charged. Allow 10 hours for the full charge.
NOTE: You should expect 6 hours of operation from a fully charged power stick. The PRO-Alert 2791 will operate from the AC adapter/charger. Connecting the supplied AC adapter/charger will allow operation of the detector while the power stick charges.
Using Your PRO-Alert 2791
WARNING
DO NOT OPERATE THIS INSTRUMENT IN THE PRESENCE OF GASOLINE, NATURAL GAS, PROPANE, OR IN OTHER COMBUSTIBLE ATMOSPHERES.
Using the PRO-Alert 2791 is simple. Press the power (left) switch once to turn the detector ON. The green ON indicator lamp will illuminate, and the yellow indicator lamps will illuminate from left to right in a running fashion while the infrared cell warms up (approximately 60 seconds).
When the detector is warmed up and ready for use, the yellow lamps extinguish and you will hear a steady beeping. The PRO-Alert 2791 is on HIGH (top light is illuminated). Press the sensitivity switch (right) once to go to MED (both lights are illuminated) and once again to go to LOW (bottom light is illuminated).
The PRO-Alert 2791 provides similar responses to all HFCs and refrigerant blends (i.e., R-134a)
General Information
The PRO-Alert 2791 Electronic Refrigerant Leak Detector is design certified by Intertek to meet SAE J2791, “Rating Criteria for Electronic Refrigerant Leak Detectors” for R-134a. The following SAE
Recommended Practice applies to this instrument only.
WARNING: Do not use cleaning agents or solvents on or near refrigerant lines. Wipe away dirt or potential false-triggering chemicals using a dry shop towel or shop air before leak testing. A leak detector may false-trigger in contaminated atmosphere. Avoid leak testing in severely contaminated areas.
An electronic leak detector may falsely indicate a leak in the presence of certain underhood chemicals. The table below lists some common underhood chemicals and indicates whether or not they will cause a false-trigger from the PRO Alert 2791.
Chemical |
False-trigger |
Windshield washer solvent (methanol base) |
YES |
Ford spot and stain remover |
YES |
Ford rust penetrant and inhibitor |
YES |
Ford gasket and trim adhesive |
YES |
Permatex natural blue cleaner and degreaser |
YES |
Ford brake parts cleaner |
YES |
Ford spray carburetor tune-up cleaner |
YES |
Ford clear silicone rubber |
NO |
Motorcraft G-05 antifreeze / coolant |
NO |
Gunk liquid wrench |
NO |
Ford pumice / lotion hand cleaner |
NO |
Ford Motorcraft DOT3 brake fluid |
NO |
Ford silicone lubricant |
NO |
Dexron automatic transmission fluid |
NO |
Mineral engine oil |
NO |
Leak test with the engine off.
a.Charge the system with sufficient refrigerant to have a gauge pressure of at least 340 kPa (50 psi) with the system off. At ambient temperatures below 15 °C (59 °F) leaks may not be measurable because the pressure may not be reached.
b.Visually trace the entire refrigerant system, and look for signs of air conditioning lubricant leakage, damage and corrosion on all lines, hoses and components. Check each questionable area with the detector probe, as well as all fittings, hose-to-line couplings, refrigerant controls, service valves with caps in place, brazed or welded areas, and areas around attachment points and hold-downs on lines and components. If looking for an apparently larger leak, check first at the MED or LOW sensitivity setting.
c.Always follow the refrigerant system around in a continuous path so that no areas of potential leaks are missed. If a leak is found, always continue to test the remainder of the system.
d.Recheck service valves with caps removed. Blow shop air over service valve to clear immediate area,
and then check with detector on MED sensitivity setting.
3
e.Move the detector at a rate of no more than 75 mm/sec (3 in/sec) and as close as possible to 9.5 mm (3/8 in) from the surface, completely encircling each test position (switch, sensor, refrigerant tubing connection, etc.).
f.Slower movement and closer approach of the probe normally improves the likelihood of finding a leak. However, detectors made to meet this standard are based on air sampling from the 9.5 mm (3/8 in) distance. So retest is advisable when a leak appears to be found at the most sensitive settings, particularly if the probe was in a static position on a joint, or making physical contact with a joint, as it was moving. Repeat with a moving probe test at that location, taking care to maintain the small gap (9.5 mm or 3/8 in) to confirm that the leak is of repairable size. Use of the MED sensitivity setting of the detector, after finding an apparent leak with the HIGH sensitivity setting, also may be helpful.
Finding Leaks
1.Turn the engine off. Place the tip of the leak-detector probe as close as possible to the site of the suspected leak. Try to position the probe within 1/4 inch of the possible leak source.
2.Slowly (approximately 1-2 inches/second [25 to 55 mm/second]) move the probe past each possible leak point. NOTE: It is important to move the tip of the probe past the leak to get a correct reading. The PRO-Alert 2791 only responds to changes in concentration of the refrigerant from the leak. Moving the probe permits the instrument to respond properly to these changes.
3.When the instrument detects a leak source, its yellow lamps will illuminate and it will emit a different audible tone.
4.When the PRO-Alert 2791 signals a leak, pull the probe away from the leak for a moment, then bring it back to pinpoint the location.
5.If the concentration of the refrigerant gas is high, press the sensitivity switch to change to the MED or LOW sensitivity setting. The lower sensitivity settings help find the exact site when a leak is large.
6.Once you have isolated the leak source, press the sensitivity setting to HIGH to continue using the PRO-Alert 2791.
Using the Manual Zero Mode
The PRO-Alert 2791’s automatic suppression of background contamination can be disabled, allowing for a continuous display of a leak without zeroing it out. When the PRO-Alert 2791 is set in the manual zero mode, the technician may manually reset or zero the detector.
To initialize this function, press and hold the sensitivity switch (right) for 5 seconds. The HIGH sensitivity indicator will flash to alert the user the detector is in manual zero mode. Increases in concentrations of refrigerants will be displayed by the illumination of the yellow LEDs. For best test results, allow the PRO-Alert 2791 to warm up for 5-10 minutes.
To “zero” the PRO-Alert 2791, press the sensitivity switch (right) once. All three of the sensitivity indicators will flash for a few seconds while the detector measures and sets a new background base level. Any increase in concentrations of refrigerant above this base level will be displayed.
To turn off the manual zero mode, press and hold the sensitivity switch (right) until the LOW sensitivity indicator becomes steady.
NOTE: When the PRO-Alert 2791 is turned on, it will always default to the automatic zeroing mode.
Recharging the Power Stick
The battery charging light (rear left side) will flash when the detector is charging, changing to steady illumination when the power stick is charged. A fully charged power stick should provide power for greater than 6 hours of continuous operation. When the battery is fully depleted, the PRO-Alert 2791 will shut down. To show the battery is depleted, the green ON indicator, last yellow leak indicator and the amber battery charging indicator will flash.
Recharge the PRO-Alert 2791 by connecting the supplied AC power adapter, or using the cigarette lighter adapter. NOTE: The PRO-Alert 2791 does not need to be fully charged to operate nor fully discharged before recharging.
WARNING
DO NOT ATTACH ANY OTHER POWER CORDS TO THE PRO-Alert 2791’S POWER JACK EXCEPT THE AC POWER ADAPTER AND DC CORDS DESIGNED FOR THIS INSTRUMENT.
Changing the Filter Cartridge
The PRO-Alert 2791 uses a specially designed filter cartridge that fits into a protective cap. The filter cartridge should be changed when it appears dirty or when substances trapped in the filter cartridge seem to be affecting the sensitivity of the PRO-Alert 2791.
NOTE: Water or oil will not penetrate the filter material but will prevent airflow through the filter and affect sensitivity.
CAUTION
TURN OFF THE PRO-Alert 2791 AND HOLD THE PROBE WITH THE FILTER TIP POINTING DOWN WHEN REMOVING THE FILTER CAP.
To change the filter cartridge, twist off the protective cap. Remove and dispose of the used filter cartridge. Do not allow any moisture or dust to get into the probe. Do not disassemble or attempt to clean the material inside the filter
4
cartridge, as it can be damaged when handled. Slide a new filter cartridge into the cap. Twist the cap with the new filter cartridge onto the probe base until it is tight.
NOTE: It is very important that you operate the PRO-Alert 2791 with a filter cartridge installed at all times.
Failure to do so could damage the leak detector’s components.
Changing the Infrared Cell
WARNING
COMPONENTS MAY BE HOT. TURN OFF DETECTOR AND DISCONNECT POWER ADAPTER CORD BEFORE REMOVING THE INFRARED CELL DOOR.
The PRO-Alert 2791 infrared (IR) cell is located in the body of the detector. The IR cell is a complete assembly consisting of a metal tube, connectors and electronic components. The IR cell is not designed to be taken apart. Doing so will destroy the cell. This specialized IR cell will operate for about 1,000 hours.
The PRO-Alert 2791 will flash all the yellow leak indicators when the IR cell has reached the end of its useful life. To replace the IR cell:
1.Locate the latch for the IR cell door on the top cover at the rear of the detector.
2.Using a small screwdriver, pull the latch forward and remove the door.
3.Grasp the IR cell according to the directions printed on its label. Pull it straight out so both ends are released at the same time.
4.Remove the replacement IR cell from the protective package.
5.Carefully align the male leads and air tubes on the IR cell with the connectors mounted on the circuit board. Insert the leads into the sockets and push the IR cell straight down.
NOTE: Ensure the lead connectors on the IR cell ends are not bent and the cell is seated tightly.
Removing/Replacing the Power Stick
The PRO-Alert 2791 uses a preassembled power stick.
Remove the battery compartment door on the back of the PRO-Alert 2791 by pressing on both release buttons on the grip and pulling the door straight out. The power stick is connected to the circuit board via a miniature electrical connector. Disengage the connector and slide the power stick out of the PRO-Alert 2791.
Slide the new stick into the PRO-Alert 2791 and push the miniature connector on the power stick into the mating half on the circuit board. Do not bend the circuit board’s connector away from the board. Once the power stick is in place, close the battery compartment by aligning the two tabs and sliding the door straight in until it latches. Ensure the wire leads on the power stick are not pinched in the door. Allow 10 hours to fully charge the new power stick.
Replacement Parts and Accessories
Replacement parts and accessories for your PRO-Alert 2791 are available through the same dealer from whom you bought the instrument.
12-volt cord with cigarette-lighter plug, 12 ft (3.7 m) |
125954 |
120-volt mains adapter and cord, 6 ft (1.8 m) |
125955 |
230-volt (Euro plug) mains adapter and cord, 6 ft (1.8 m) |
125956 |
230-volt (UK plug) mains adapter and cord, 6 ft (1.8 m) |
125957 |
240-volt mains adapter and cord, 6 ft (1.8 m) |
126000 |
100-volt mains adapter and cord, 6 ft (1.8 m) |
125958 |
Power stick |
125922 |
Replacement infrared cell |
125959 |
Filter cartridges, package of 5 |
125921 |
Replacement probe cap |
125923 |
Specifications |
|
|
Usage |
Indoor or outdoor |
|
Optimum sensitivity to R-12 and R-134a |
Down to 0.1 oz/yr. (3 g/yr.) |
|
Input voltage range |
12 to 16 V(DC) |
|
Input current |
500 mA max. |
|
Operating and charging temperature range* |
+32 °F to 122 °F |
(0 °C to +50 °C) |
Storage temperature range |
+14 °F to +140 °F |
(-10 °C to +60 °C) |
Humidity |
95% RH NC max. |
|
Altitude |
6500 ft (2000 m) |
|
Pollution degree |
2 |
|
Overvoltage category |
2 |
|
Weight (with power cells) |
1.28 lb (0.58 kg) |
|
*May be operated for a limited time in lower temperature environments
5
Troubleshooting Guide
Problem |
|
Cause |
|
Remedy |
1. All yellow lights flashing |
1a. |
IR sensor cell has become |
1a. |
Remove sensor access door |
together. |
|
unseated. |
|
and push both ends of sensor |
|
|
|
|
down. (Do not remove/reinsert |
|
|
|
|
sensor cell.) Restart unit and |
|
|
|
|
examine. |
|
1b. |
IR sensor cell has failed. |
1b. |
Replace with new sensor. |
2. Will not detect refrigerant. |
2a. |
Unit may not be warmed up |
2a. |
If yellow lights are scrolling, |
|
|
and ready to use. |
|
wait 90 seconds to see if the |
|
|
|
|
unit starts to beep and the lights |
|
|
|
|
stop scrolling. |
|
2b. |
Pump may have failed. |
2b. |
You should hear the pump |
|
|
|
|
running after the warm-up |
|
|
|
|
sequence is completed. Verify |
|
|
|
|
it is not a low battery condition |
|
|
|
|
(see #3). |
|
2c. |
Air tubing inside may have |
2c. Contact Tracer Products. |
|
|
|
come disconnected. |
|
|
|
2d. |
Battery may be dead. |
2d. |
See #3 below. |
3. After warm-up sequence the |
3a. |
Battery needs recharging. |
3a. |
Charge battery for 10-12 hours. |
green, the last yellow and |
|
|
|
|
the amber charging LEDs |
|
|
|
|
flash. |
|
|
|
|
|
3b. |
Power stick has failed. |
3b. |
Replace power stick. |
4. Pump is not working. |
4a. |
Pump has failed. |
4a. |
See 2b. |
|
|
|
|
|
Warranty and Liability
Your PRO-Alert 2791 Electronic Refrigerant Leak Detector is of the finest design and craftsmanship. As such,
Tracer Products warrants that when delivered it will be free from defects in manufacture.
Tracer Products’ obligation under this warranty is limited to repairing or replacing, at the option of Tracer Products, any part(s) of the product which, if properly installed, used and maintained, proves upon factory examination to have been defective in materials or workmanship within two years from the date of delivery.
Tracer Products does not warrant components that deteriorate under normal use, including the power stick, infrared absorption element and filters. In addition, Tracer Products does not warrant any instrument that has been subjected to misuse, negligence or accident, or has been repaired or altered by anyone other than Tracer Products.
This warranty is in place of all other warranties of quality. There are no other warranties either oral, written, express, implied or statutory. IMPLIED WARRANTIES OF FITNESS FOR PURPOSE AND MERCHANTABILITY ARE EXCLUDED. This warranty and your remedies thereunder are solely as stated in this manual. In no event shall Tracer Products be liable for special, indirect, incidental or consequential damages, nor for any damages arising out of delay in shipment or production.
Return Authorization Procedure
A defective PRO-Alert 2791, or a defective replacement part or accessory, should be returned to your wholesaler for warranty evaluation. If you have any questions, please contact the Customer Service Department at Tracer Products.
NOTE: Do not return your defective unit directly to the factory without first contacting Tracer Products for a Return Authorization Number.
6
French
GUIDE DE L’UTILISATEUR
TP-9364
Détecteur électronique de fuites de fluide frigorigène
Déclaration de Conformité
La présente vous informe que ce matériel, conçu et fourni par Tracer Products, division de Spectronics Corporation, 956 Brush Hollow Road, Westbury, New York 11590, États-Unis, est conforme aux exigences essentielles de sécurité de l’Union Européenne et qu’il est par conséquent placé sur le marché. Il a été construit conformément aux bonnes pratiques d’ingénierie en matière de sécurité, en vigueur dans la communauté et il ne met en danger ni les personnes ni les animaux domestiques ni les biens matériels dès lors qu’il est correctement installé et entretenu et utilisé aux fins pour lesquelles il a été conçu.
Description du matériel |
Détecteur de fuites électronique pour fluide frigorigène PRO-Alert 2791™ |
Directives applicables |
73/23/EEC modifié par 93/68/EEC |
|
89/336/EEC modifié par 93/68/EEC |
|
2002/95EC (RoHS) |
Normes applicables |
EN61010-1: 2001; EN61326-1 |
|
A2-2000 Industriel |
Date de mise en œuvre CE |
8 décembre 2003 |
Toutes les questions au sujet de cette déclaration ou de la sécurité de ce produit doivent être adressées, par écrit, au service à la clientèle de Tracer Products, à l’adresse ci-dessus.
AVERTISSEMENT
Ce symbole est employé pour signaler à l’utilisateur la présence d’instructions importante pour le fonctionnement et la maintenance (l’entretien) dans la documentation accompagnant cet appareil.
Caractéristiques du Tracerline® PRO-Alert 2791™
Le détecteur de fuites électronique pour fluide frigorigène PRO-Alert 2791 utilise un capteur infra-rouge innovant qui est extrémement sensible à tous les fluides frigorigènes, notamment le R-134a et tous les HFCs.
•Durée du capteur infra-rouge de 1000 heures, ce qui est très avantageux, considérant le petit prix d’achat
•Le capteur infra-rouge ne s’affaiblit pas avec le temps, si bien que les réponses demeurent régulières et exactes
•La pompe d’échantillonage d’air à rendement élevé fournit des réponses rapides et se remet à zéro rapidement (« zeroing »)
•La pile NiMH est respectueuse de l’environnement, ne rouille pas et dispose d’une plus grande capacité de chargement
•Peut fonctionner avec l’adaptateur/chargeur CA
Pour obtenir les meilleurs résultats de votre PRO-Alert 2791, veuillez lire ce manuel attentivement avant de commencer à utiliser le produit. Si vous avez des questions ou s’il vous faut plus d’aide, veuillez appeler le service à la clientèle de Tracer Products au 1-800-641-1133 (à l’extérieur des États-Unis et du Canada, appelez le
1-516-333-1254).
Capuchon de la sonde
Indicateurs
High/Med/Low Cartouche filtre
(haut/moyen/bas)
Pointe
|
Interrupteur |
Voyants DEL |
|
|
marche-arrêt |
||
|
|
|
verts/jaunes |
|
|
|
Sonde flexible |
Témoin de |
|
||
charge |
|
Sélecteur de |
|
Prise |
|
sensibilité High/ |
|
|
Med/Low (haut/ |
||
d’alimentation |
|
moyen/bas) |
|
|
|
|
Trappe d’accès |
|
|
|
au capteur |
|
|
|
infra-rouge |
|
|
|
Poignée |
|
|
|
caoutchoutée |
|
|
Compartiment |
|
|
|
des piles |
|
Prise écouteur |
rechargeables |
7 |
|
|
|
|
|
Démarrage
Le PRO-Alert 2791 est expédié avec le capteur infra-rouge et le manche d’alimentation déjà installés. Les piles en nickel/hydrure métallique dans le manche d’alimentation ne sont pas encore chargées. Pour les charger, connectez le cordon du chargeur/adaptateur CA à la prise d’alimentation à l’arrière de l’appareil, et branchez l’adaptateur dans la prise de secteur appropriée. Le voyant de charge (à l’arrière, du côté gauche) clignote quand le détecteur est en charge ; le voyant est allumé fixe quand le manche d’alimentation est chargé. Prévoyez 10 heures pour qu’il soit chargé à fond.
REMARQUE : Un manche d’alimentation chargé à fond devrait vous fournir 6 heures de fonctionnement. Le PRO-Alert 2791 peut fonctionner à l’aide de l’adaptateur/chargeur CA. En connectant l’adaptateur/chargeur CA fourni, le détecteur peut fonctionner pendant le chargement du manche d’alimentation.
Utilisation du PRO-Alert 2791
AVERTISSEMENT
NE PAS FAIRE FONCTIONNER CET INSTRUMENT EN PRÉSENCE D’ESSENCE, DE GAZ NATUREL,
DE PROPANE OU D’AUTRES ATMOSPHÈRES COMBUSTIBLES.
Le PRO-Alert 2791 est facile d’emploi. Appuyez une fois sur l’interrupteur d’alimentation pour mettre le détecteur en marche (ON). Le témoin vert « ON » s’allume et les voyants jaunes s’allument de gauche à droite en va-et-vient pendant l’échauffement du capteur infrarouge (environ 60 secondes).
Une fois le détecteur à sa température de fonctionnement et prêt à fonctionner, les voyants jaunes s’éteignent et un bip sonore retentit régulièrement. Le PRO-Alert 2791 est alors au niveau élevé « HIGH » (le voyant du haut et allumé). Appuyez une fois sur l’interrupteur de sensibilité (à droite) pour passer à « MED » (moyenne, les deux
voyants s’allument), et une fois encore pour passer à « LOW » (bas, le voyant du bas s’allume). Le PRO-Alert 2791 fournit des réponses semblables pour tous les mélanges de HFC et de fluide frigorigène (R-134a, par ex.).
Information générale
Intertek certifie que la conception du détecteur électronique de fuites de fluide frigorigène PRO-Alert 2792 satisfait
àla norme SAE J2791, « Norme des détecteurs électroniques de fuites de fluides frigorigènes » pour R-134a.
L’usage suivant recommandé SAE s’applique uniquement à cet appareil.
AVERTISSEMENT : Ne pas utiliser d’agents nettoyants ou de solvants sur des conduits de fluides frigorigènes ou
àproximité de ceux-ci. Débarrassez-vous des saletés ou des produits chimiques pouvant causer des faux relevés
àl’aide d’une serviette sèche ou d’air comprimé avant l’essai d’étanchéité. Un détecteur de fuites peut provoquer des faux relevés dans une atmosphère contaminée. Évitez les essais d’étanchéité dans les zones sévèrement contaminées.
Un détecteur de fuites électronique peut indiquer faussement une fuite en présence de certains produits chimiques sous le capot. Le tableau ci-dessous énumère certains produits chimiques se trouvant souvent sous le capot et indique s’ils causeront ou non des faux relevés avec le PRO Alert 2791.
Produits chimiques |
Faux relevé |
Solvant nettoyant du pare-brise (à base de méthanol) |
OUI |
Produit détachant de Ford |
OUI |
Liquide pénétrant anticorrosion de Ford |
OUI |
Joint d’étanchéité de Ford et adhésif de garniture |
OUI |
Nettoyant bleu naturel et dégraissant Permatex |
OUI |
Nettoyant pour frein de Ford |
OUI |
Nettoyant en vaporisateur pour mise au point du carburateur de Ford |
OUI |
Caoutchouc de silicone transparent de Ford |
NON |
Antigel/liquide de refroidissement Motorcraft G-05 |
NON |
Dissolvant nettoyant |
NON |
Pierre ponce/crème nettoyante pour les mains de Ford |
NON |
Liquide de frein Motorcraft DOT3 de Ford |
NON |
Lubrifiant au silicone de Ford |
NON |
Fluide Dexron pour les transmissions automatiques |
NON |
Huile minérale pour moteurs |
NON |
Essai d’étanchéité lorsque le moteur est à l’arrêt.
a.Chargez suffisamment de fluide frigorigène dans le système pour que la pression manométrique soit au moins de
340 kPa (50 psi) quand le système est à l’arrêt. Il se peut qu’aux températures ambiantes en-dessous de 15° C (59° F), les fuites ne soient pas mesurables parce qu’il n’est peut-être pas possible d’atteindre la pression.
b.Suivez des yeux le système frigorigène tout entier en recherchant des signes de fuite du lubrifiant de climatiseur, d’avarie et de corrosion de tous les conduits, tuyaux et composants. Examinez chaque zone suspecte à l’aide de la sonde de détection, ainsi que toutes les installations, tous les raccords de tuyaux, les régleurs de débit
de fluide frigorigène, les valves de commande de frein en gardant les couvercles en place, les zones brasées
8
Loading...