BOC Edwards A730-01-983, Инструкция по эксплуатации, Страница: 26 / 44

Issue A Nov 02
PAGE
20
XDS Dry Pump
MAINTENANCE
20
5.3 Inspect and clean the inlet strainer
Whenever you disconnect the pump from your
vacuum system, we recommend that you:
• Remove any debris trapped by the inlet
strainer (in the inlet port).
• Inspect the inlet strainer and if necessary,
clean it with a cleaning solution suitable for
the substances pumped. Refit the inlet
strainer before you reconnect the pump to
your vacuum system.
1. Refer to Figure 5. Disconnect your vacuum
system from the pump inlet-port (3) and
remove the centring-ring and strainer assembly
(1) and the 'O' ring (2). Inspect the centring-ring
and the 'O' ring. If they are clean, continue at
Step 5. If they are not clean, continue at Step 2.
2. Remove the 'O' ring (2) from the centring-ring
and strainer assembly (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.
5. Refit the centring-ring and strainer assembly
and the 'O' ring to the inlet-port. Refit your
vacuum system to the pump inlet-port.
5.4 Inspect and clean the gas ballast
control
Note: The gas ballast filter element (Figure 6, item 7)
is retained in its seating with adhesive; do not
try to remove it.
1. Refer to Figure 6. Turn the gas ballast control
to the high flow position (II).
2. Push the control down against the compression
spring (6) as far as it will go, then turn the
control anti-clockwise slightly to release the
bayonet lugs (5) and remove the control (1).
3. If necessary, wipe the control with a clean, dry,
lint-free cloth and check that the air-hole (3) is
not blocked. If necessary, clean the foam with
warm soapy water and allow to air dry.
Operation Frequency Refer to Section
Inspect and clean inlet strainer Yearly 5.3
Inspect and clean the gas ballast control Yearly 5.4
Clean the external fan cover Yearly 5.5
Replace the tip seals 9000 hours 5.6
Test the motor / drive condition 15000 hours 5.7
Replace the bearings 35000 hours Refer to BOC Edwards
Table 9 - Maintenance plan
Figure 5 - Inlet strainer assembly
1. Centring ring and strainer
2. 'O' ring
3. Pump inlet-port