12-83 Leak Detection (continued)
Very small leaks can be detected by charging the system with helium gas. Helium
molecules are smaller than R134a molecules and will leak more quickly. Charge system
to 200 psi maximum. Use commercially available electronic helium detector or soap and
water solution to locate leaks.
Leaks are most likely to occur at fittings and crimped transitions between hard line and
flexible hose. Concentrate initial leak detection efforts in these areas.
Page 12.20 Chapter 12 Servicing JUL 2020
FIGURE 12-7 C017-6 REV AD OR LATER SWASHPLATE ASSEMBLY
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