Maintenance Plan; Inspect And Clean The Inlet Strainer - Edwards XDS35iC Instruction Manual

▪ Do not touch or inhale the thermal breakdown products of fluorinated materials
which may be present in the pump if the pump has been heated to 260 °C and
above. Fluorinated materials are safe in normal use but can decompose into very
dangerous substances (which may include hydrofluoric acid) if they are heated to
260 °C and above. The pump may have overheated if misused or in a fire. Safety
Data Sheets for fluorinated materials used in the pump are available on request,
contact us or the supplier.

6.2 Maintenance plan

The plan shown in
necessary to maintain the pump in normal use. Instructions for each operation are given
in the section shown.
More frequent maintenance may be required if the pump is used to pump corrosive or
abrasive gases and vapours.
Table 10 Maintenance plan
Operation
Inspect and clean inlet
strainer
Inspect and clean the gas
ballast control (if fitted)
Clean the external fan cover Annually
Replace the tip seal and ex-
haust valve
Test the motor/drive condi-
tion
Replace the bearings

6.3 Inspect and clean the inlet strainer

Whenever disconnecting the pump from the vacuum system:
▪ Remove any debris trapped by the inlet strainer (in the inlet port).
▪ Inspect the inlet strainer and if necessary, clean with a cleaning solution suitable
for the substances pumped. Refit the inlet strainer before reconnecting the pump
to the vacuum system.
1. Refer to
pump inlet port (item 3) and remove the centring ring and strainer assembly
(item 1) and the O‑ring (item 2). Inspect the centring ring and the O‑ring. If clean,
continue at Step 5. If not clean, continue at Step 2.
2. Remove the O‑ring (item 2) from the centring ring and strainer assembly (item 1).
Do not allow the O‑ring to come into contact with the cleaning solution.
3. Wash the centring ring and strainer assembly in a suitable cleaning solution and
allow it to dry.
4. If necessary, wipe the O‑ring with a clean, dry, lint‑free cloth.
A73001880_N
A73001880_N - Maintenance
Table: Maintenance plan
Frequency
Annually
Annually
Annually or as required
15000 hours
35000 hours
Figure: Inlet strainer assembly. Disconnect the vacuum system from the
Page 28
details the routine maintenance operations
Refer to Section
Inspect and clean the inlet
strainer on page 28
Inspect and clean the gas bal-
last control (if fitted)
Clean the external fan cover
page 30
Replace the tip seals
Test the motor condition
page 30
Contact us
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on page 29
on
on page 30
on