S149-01-880 Issue F
Page 28 © Edwards Limited 2011. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Maintenance
5.3 Maintenance plan
A typical maintenance plan for the Microvac pump is provided in Table 5.
Figure 13 - Typical vacuum system piping
Table 5 - Maintenance plan
Operation Frequency
Inspect oil level Daily
Check operating temperature 60-71 °C (140-160 °F) Daily
Replace oil Application dependent
Inspect valve decks 6 months
Inspect pulleys and belts 6 months
Inspect gas ballast valve 6 months
Inspect bearing condition 12 months
Clean the motor and drive 12 months
Inspect taper lock bushings on pulleys After break in and 12 months
1. Vacuum chamber
2. Roughing valve
3. Roughing line
4. Air inlet valve
5. Gauge port
6. Mechanical fore pump
7. Optional foreline valve connection location
8. Optional hold pump connection location
9. Gauge port
10.Vapour pump
11.Valve
12.Alternate chamber gauge port location
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