The determine shows the vacuum clutch system. Such a clutch works by using the present vacuum inside the engine manifold to work the clutch. The vacuum clutch contains a reservoir, non-return valve, vacuum cylinder with piston, and solenoid valve.  Sarankan agar pemilik kenderaan sentiasa memeriksa secara berkala tahap minyak clutch https://clutch-plate20752.techionblog.com/33049340/clutch-plate-fundamentals-explained