Subaru LEGACY 2002 Quick Reference Index page 490

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HVAC System (Heater, Ventilator and A/C)

2) When compressor is in regular operation:

When the pressure in the high-pressure chamber of the compressor increases, the pressure over-

comes the spring tension and pushes the check ball against its seat, so the trigger valve closes.

The oil port pressure coming through the side block is applied to the end surface of vane to main-

tain proper back pressure.

(1) High-pressure chamber

(2) Trigger valve (Closed)

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