Maintenance
57
GA03107_002_A4 - 09/2015 - © Oerlikon Leybold Vacuum
The loosened deposits must not remain in the pump. After cleaning, check
the pump by slowly turning the impellers by hand. They should move freely
and without any resistance.
Generally, the Roots pump does not need to be disassembled. If neces-
sary, this should only be done by our after-sales service.
5.7 Cleaning the Valve of the Pressure Balance Line
Observe all safety information provided in Sections 0.3 to 0.5 and 5.1.
Remove the screws and take off the cover with O-ring.
Take out the spring.
Remove the valve disk with O-rings.
If the bushing is damaged, pull it out of the valve disk and replace it.
Clean all parts or replace them if necessary. Reassemble in the reverse
sequence. When doing so, check the O-rings for leak-tightness and replace if
found faulty. Finally a leak test should be run.
NOTICE
CAUTION
Fig. 5.1 Valve of the pressure balance line
1
2
3
4
5
6
7
1 Cover
2 O-ring
3 Bushing
4 Spring
5 O-ring
6 Valve disc
7 O-ring
8 Fastening disc
9 Dampening element
10 Circlip
1
2
8
9
10
6
7
without ACE shock absorber.
with ACE shock absorber.
Summary of Contents for RUVAC WA
Page 67: ...Notes 67 GA03107_002_A4 09 2015 Oerlikon Leybold Vacuum ...
Page 68: ...68 GA03107_002_A4 09 2015 Oerlikon Leybold Vacuum EC Declaration of Conformity ...
Page 69: ...69 GA03107_002_A4 09 2015 Oerlikon Leybold Vacuum EC Incorporation Declaration ...
Page 71: ...Index 71 GA03107_002_A4 09 2015 Oerlikon Leybold Vacuum ...