Cleaning And Care Measures; Special Care Instructions - Hupfer ITW Manual De Instrucciones

Cleaning and Care

Special Care Instructions

7.3.1

Cleaning and Care Measures

Cleaning and care measures
Interior of the induction trolley
Induction trolleys for mechanical damages
Induction trolleys for defective spool carriers
Mechanical damages and obsolescence on the connecting lead
Mechanical damages and obsolescence on the mains plug
Protective earth test
Condensate pan at the bottom area (ITW UK only)
Air intake of the condenser (ITW UK only)
Air intake of the condenser (ITW UK only)
Slots of the condenser (ITW UK only)
Slots of the condenser (ITW UK only)
Dusty fan grille of the induction generators
7.4 Special Care Instructions
Resistance to corrosion in stainless steels is provided by a passive layer which is formed on the surface
when oxygen is absorbed. The oxygen in the air is sufficient for the formation of the passive layer, so that
faults or damage to the passive layer can be remedied again automatically by mechanical action.
The passive layer develops or is renewed more quickly when the steel comes into contact with water con-
taining oxygen. The passive layer can be chemically damaged or breached by agents which have a reduc-
ing (oxygen-consuming) effect when they come into contact with steel at concentrated levels or at high
temperatures.
Such aggressive substances include:
§
substances containing salt and sulphur
§
chlorides (salts)
§
seasoning concentrates (e.g. mustard, vinegar essence, seasoning cubes, saline solutions)
Further damages can occur due to:
§
extraneous rust (e.g. from other components, tools or rust film)
§
iron particles (e.g. grinding dust)
§
contact with non-ferrous metals (element formation)
§
lack of oxygen (e.g. no admission of air, low-oxygen water).
General working principles for handling appliances made of "refined stainless steel":
§
Always keep the surface of appliances made from stainless steel clean and open to air.
§
Use cleaning agents suitable for stainless steel. Never use bleaching cleaning agents or any con-
taining chlorides.
§
Remove layers of lime scale, grease, starch and egg-white by cleaning daily. Corrosion may occur
underneath these layers due to lack of air absorption.
§
After each cleaning operation remove all cleaning agent residues by wiping thoroughly. The surface
should be thoroughly dried after wiping.
91249668_A2
Action
clean x
check
check
check
check
carry out
empty x
check
clean
check
clean
clean
Section 7
Page 27
x
x
x
x
x
x
x
x
x
x
Induction trolley
ITW