Tracer Big EZ Shot and EZ Shot M-L AM12050 - Manual (Page 3)

3
LEAK INSPECTION
1. Start the engine and run the A/C system on maximum for 5 to 10 minutes to circulate the dye.
The system must contain enough refrigerant to operate the compressor and circulate the
dye in order to find leaks.
2. Turn off the engine. Inspect possible leak areas with a UV or blue light lamp. For best results,
use a high-intensity Tracerline ® lamp and wear fluorescence-enhancing glasses. Leaks will
glow a bright yellow-green. The fluorescence will be brightest under low light conditions.
3. To find smaller leaks, operate the A/C system over the next 24 to 48 hours and reinspect.
4. Cleanup/reinspection—After the leaks are repaired, clean the remaining dye from the leak sites
with Tracerline GLO-AWAY™ or a shop cleaner. Check with the lamp to be sure all dye residue
has been removed. Residual dye could give a false leak indication.
5. Run the A/C system another 5 to 10 minutes and reinspect with the lamp. No glow means all
leaks have been repaired.
DYE DOSE
The BigEZ injector generates more torque than the EZ-Shot injection gun, making the BigEZ easier
to inject and allowing for more accurate dosing.
Dye Type and Cartridge Size
-0004 (4-oz), -0108 (8-oz) Applications
TP-9750-0004, R-12/mineral oil 32 compact vehicles or
TP-9760-0004, R-134a/PAG 16 standard size vehicles
TP-9770-0004, Universal
(both R-12 and R-134a)
TP-9750-0108, R-12/mineral oil 64 compact vehicles or
TP-9760-0108, R-134a/PAG 32 standard size vehicles
TP-9770-0108, Universal
(both R-12 and R-134a )
If known, use the amount of lubricant in the A/C system to determine the dye dose. Each line on the
cartridge equals 1/8 fl oz (3.7 ml) of dye.
SYSTEM REFRIGERANT/
LUBRICANT AMOUNT DYE DOSE SYSTEM
Refrigerant—Up to 2 lb (0.9 kg) 1 line (1/8 oz) Compact vehicle
Lubricant—Up to 5 fl oz (150 ml)
Refrigerant—2.1 to 5 lb (1.0 to 2.3 kg) 2 lines (1/4 oz) Standard vehicle
Lubricant—5 to 10 fl oz (150 to 300 ml)
Refrigerant—5.1 lb (2.3 kg) or more 3 lines (3/8 oz) Larger vehicles
Lubricant—10.1 fl oz (300 ml) or more or more
• When using TP-9770 universal dye only, attach the adapter/purge fitting to the low side service
port on the vehicle and connect the quick coupler attached to the hose assembly.
• When using TP-9750 mineral oil dye, connect the TP-9746 R-12 hose assembly to the low side
access fitting on the vehicle.
3. To inject the dye or lubricant—turn the plunger handle on the BigEZ injector or squeeze the
handle on the EZ-Shot injection gun. See " Dye Dose" to determine the recommended dosage.
4. If excessive resistance is met, the access fitting has not been opened fully. Check that the
hose-fitting connection is tight.
5. Disconnect the quick coupler from the service port and wipe both clean.