Stephan VCM 44 - 10. Cleaning and disinfection; 10.1 Stages of the cleaning and disinfection process

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Maintenance

31.10.2002 \\Docuserver\ba\Master\Ba_eng\UM\044_60\UM_A+S\Wartung.fm 24

VCM 44 A

9. Maintenance

9.1 Sharpening the blades

Only sharpened blades should be installed. Blunt blades must be sharpened on special blade

grinding machines. Blades should be wet-ground to prevent oxidation or drawing temper. Burrs

should be removed wet with a whetstone.

9.2 Changing the seals

If the machine may run under vacuum conditions, the pressure chamber must always be her-

metically sealable. Leakage to the motor bearing shield may damage the motor. Therefore, the

seals must be checked and cleaned daily.

Damaged seals must be replaced immediately. The running sleeve should be carefully

cleaned at the same time. Should traces of broaching be detected, the running sleeves should

also be replaced.

9.2.1 Construction of the motor shaft seal, standard

Shaft seal bowl/motor

Should competent grinding work not be possible on site, blades may be sent to

Stephan for regrinding.

Pos. No. Description Part No.

2 Sealing flange, complete 3K1012-03