gas-ballast lter on page 40) to trap any dust and debris if air is used as the gas-ballast
supply.
If using a dierent gas for the gas-ballast supply or to connect a valve to the gas-ballast
inlet:
1. Remove the lters (as described in Clean the gas-ballast lter on page 39).
2. Connect the gas supply or valve to the 1/4 inch BSP threaded hole.
4.11 Leak-test the system
Leak‑test the system and seal any leaks found aer you have installed the pump, to
prevent leakage of substances out of the system and leakage of air into the system.
Page 30
A34310880_T - Installaon
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