59
Maintenance and Servicing
8. Maintenance and Servicing
8.1 Cleaning
Warning!
Danger of injury. Before any cleaning work, pull out the mains plug.
Regular cleaning of the easy-to-clean chamber interior prevents
build up of material remains, which over time could impair
the appearance and functionality of the stainless steel
chamber.
To clean the interior, the fan cover can be removed by pulling
it slightly forwards, after the two fixing screws have been
screwed out ( Fig. 36 ). The protective grid of the O
2
sensor can
(if the model is equipped with a O
2
module) be taken off after
the fixing screws have been removed ( Fig. 37).
The metal surfaces of the chamber can be cleaned with nor-
mal stainless steel cleaning agents. Make sure that no rusty
objects come into contact with the working chamber or with
the stainless steel housing. Rust deposits lead to an infection
of the stainless steel.
If rust spots should appear on the surface of the working
chamber, due to impurities, immediately clean and polish
the affected area.
Do not clean the operating panel, the plastic input module
and other plastic parts of the chamber with caustic or solvent-
based cleaning agents.
8.2 Regular maintenance
Monthlyy
Ź
For models with O
2
module: Perform oxygen calibration (see page 54 ).
Every three months
y
Ź
Check that door seals fit tightly, adjust door if necessary (see page 60 ).
Ź
In permanent mode: Grease the moving parts of the doors (hinges and lock) with thin
silicone grease and check that the hinge screws are not loose.
Annually:
y
Ź
Grease the moving parts of the doors (hinges and lock) with thin silicone grease and check
that the hinge screws are not loose.
Ź
Check that door seals fit tightly, adjust door if necessary (see page 60 ).
Fig. 36
To take off the
fan cover, remove two
g
screws
Fig. 37
O
2
sensor
