Edwards XDS46i

5. Ret the centring ring and strainer assembly and the O‑ring to the inlet port. Ret
the vacuum system to the pump inlet port.
Figure 5 Inlet strainer assembly
1. Centring ring and strainer 2. O‑ring
3. Pump inlet port
1. Centring ring and strainer 2. O‑ring
3. Pump inlet port
6.4 Inspect and clean the gas ballast control (if ed)
Note:
The gas ballast lter element (Figure: Gas ballast control assembly on page 28, item 7) is
retained in its seang with adhesive, do not try to remove it.
1.
Refer to Figure: Gas ballast control assembly on page 28. Turn the gas ballast
control to the high ow posion (II).
2. Push the control down against the compression spring (item 6) as far as it will go,
then turn the control an ‑clockwise slightly to release the bayonet lugs (item 5)
and remove the control (item 1).
3. If necessary, wipe the control with a clean, dry, lint‑free cloth and check that the
air hole (item 3) is not blocked.
4.
Ret the control into the gas ballast inlet and ensure that the compression spring
locates correctly between the bayonet lugs.
5.
Push the control down as far as it will go and then turn the control clockwise
slightly unl the bayonet lugs engage correctly.
6.
Reset the gas ballast control to the required posion.
Page 27
A73101880_F - Maintenance