Maintenance
Page 21
printed: 06/2020 Subject to change!
:FFUserManual.docx
6.1.5 Daily Cleaning
1. Let the unit cool down.
(down to ambience temperature).
2. Unplug the unit.
3. Close the main gas supply.
4. Remove the spits.
5. Catch the drain water.
(Water remaining from the cleaning catch up in the fat drawers).
6. Clean the removed parts.
•
The stainless-steel parts should be cleaned daily with soapy water, rinsed with clear water and
dried carefully.
•
If the unit is not used for a longer time the stainless-steel parts should be greased with Vaseline
oil.
6.2 Recommendation for the treatment
of large kitchen appliances made of "stainless steel”
6.2.1 Knowledge about “stainless steel”
Most catering equipment is made of stainless steel with the following material number.
•
1.4016 or 1.4511
=magnetizable chromium steel
•
1.4301, 1.4401 and 1.4571
= not magnetizable chromium steel
Chromium steel has advantageous thermomechanical properties. They do not become distorted
using heat.
Chrome-nickel steel has advantageous anti-corrosive properties.
The corrosion resistance of the rustproof steel has a passive layer, which can be formed on the
surface by oxidation. The oxygen in the air is enough to form a passive layer, so any malfunc-
tions or damage of the passive layer, caused by mechanical influence can be remedied on their
own. The growth of the passive layer is faster, if the steel touches running oxygenated water.
Acid, which has an oxidizing impact (nitric acid, oxalic acid), can strengthen the effect.
These acids are used, if the steel is strained used by chemicals and the passive layer is lost to a
large extend.
The passive layer can be disturbed or damaged by (oxygen-requiring) means, which react
reduced, if they are on steel that has high temperature or concentrated.
Such aggressive substances are e.g.
•
Substances containing salt and sulphur
•
Chlorides (salts)
•
Seasoning concentrates such as mustard, vinegar essence, seasoning tablets, saline solu-
tions, etc.
Further damage can be caused by
•
Rust from external sources
(e.g. from other components, tools or flash
rust)
•
Iron particles (e.g. grinding dust)
•
Contact with non-ferrous metals (element formation)
•
Lack of oxygen
(e.g. no access of air, oxygen-poor water
)
Summary of Contents for FF Series
Page 1: ...User Manual Wall of Flame FF Series...
Page 2: ......
