If a leak is found for movement of piston 1 (primary leak), any leak described for piston movement 2 will cause a failure for piston 1 as well, as the liquid can move through the outlet valve to chamber 2. Such cases need to be identified as described before. Additionally, following causes are possible:
Probable cause | Suggested actions | |
|---|---|---|
1 | Leak at piston 1 or seal in chamber 1 | Inspect piston, replace piston and/or seal |
2 | Leak at inlet valve | Replace inlet valve or inlet valve cartridge (AIV only) |
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