Fluorescent Dye Leak Detection

Fluorescent Dye Leak Detection
1. Check for leaks using ultraviolet (UV) lamp.

WARNING: Eye protection glasses supplied with the ultraviolet (UV) lamp should be used to protect eyesight from harm.

NOTE: The air conditioning (A/C) system has an R-134a leak trace dye wafer incorporated into the desiccant bag. The exact location of leaks can be pinpointed by the bright yellow/green glow of the tracer dye. Since more than one leak may exist, always inspect each component. If it is necessary to add dye (due to a severe leakage for example) use proprietary tracer dye injection equipment.

2. Check all components, fittings and lines of the A/C system.
3. Carry out the repair.
4. After the leak is repaired, remove any traces of leak trace dye with a general purpose oil solvent.
5. Check the A/C system for correct operation.
6. Verify the repair by operating the system for a short time and inspecting with the (UV) lamp.