Fig.45:
Attach clamping arms
3.
Pull the valve cover against the seal by means of the star grip on the
pressurizing tool
(hand-tight).
Fig.46:
Secure internal assembly
4.
Apply max. 3 bar of compressed air to the
pressurizing tool
.
!
Air pressures > 3 bar can damage the metal bellows.
5.
Immerse the internal assembly in a water bath for approx. 30 seconds.
!
During immersion, check the internal assembly for leakage. Leakages will
become visible through rising bubbles.
Maintenance
Carrying out the "Internal assembly" leak test (bubble test)
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