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Check/replace the filter cell, Fig. 9-1, 7 check/replace the filter cell – INFICON UL5000 Dry Helium Leak Detector User Manual

Page 96: Danger

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96

Maintenance works

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9.7

Check/Replace the filter cell

The filter cell in front of the fans should be checked every three months (under worth
conditions mobthly). If the filters cells are dirty then you should replced them. They
allow to reduce the cooling power of the turbo pump and the leak detector.

Required tool

Wedge (Accessories).

Required material

Spare Filter cell P/N 200000685

Please refer to section

9.6.1

to open the unit.

Catch the filter cell by using your two fingers (

Fig. 9-2

/a) and pull it out of the

guide plate. You can also press the filter to the front with an appropriate tool throw
the ejection drilling (

Fig. 9-2

/3) located at the back side.

Fig. 9-1 Opening the UL5000

Pos. Description

Pos. Description

1

Wedge

2

Side cover

1

2

STOP

Danger

Disconnect the power cord from the UL5000 before opening one of the side covers.