Cleaning And Care Of The System; Cleaning And Care Of Stainless Steel - ATT Nussbaum SPRINTER MOBIL 2500 Manuel D'exploitation

means are to be checked.
• Check the torque of the fastening screws. Also
see the assembly protocol.
Torque (Nm) for shaft screws:
Fastening class 8.8
0,08* 0,12** 0,14***
M8 17,9 23,1 25,3
M10 36 46 51
M12 61 80 87
M16 147 194 214
M20 297 391 430
M24 512 675 743
Fastening class 10.9
0,08* 0,12** 0,14***
M8 26,2 34 37,2
M10 53 68 75
M12 90 117 128
M16 216 285 314
M20 423 557 615
M24 730 960 1060
* Lubricated slide friction number 0,8 MoS2
** Lightly oiled slide friction number 0,12
*** Ensured slide friction number 0,14 screw with micro-en-
capsulated plastic
• The system is fitted with no-maintenance DU slid-
ing bearings. Despite this, due to environmental
influences of various kinds (e.g. humidity, dust,
dirt) bearing zones may become noisy.
In this case, spray the affected areas with an acid
and resin free oil spray (no adhesive oil or biologi-
cally degradable oil). Noises normally occur after
the system has been raised and lowered several
times.
• Check the function of the CE STOP with warning
signal.
7.2.2 Maintenance every 2 years
Change the hydraulic oil according to manufactur-
ers instructions.
7.2.3 Maintenance every 6 years
• Exchange the protective and hydraulic hoses.
Excerpt from BGR 237
Specifications for the hydraulic hose lines:
• Normal specification:
6 years including 2 years storage time.
• Increased demands e.g. due to increased usage
times, e.g. multi-shift operation, short cycle times
and pressure impulses and large external and in-
ternal (due to medium) influences which signifi-
cantly reduce the lifetime of the hose lines:
2 year operation duration
7.3

Cleaning and care of the system

A regular and expert clean helps retain the value
of the system.
64
Additionally, it can also be a pre-requisiste for the
preservation of guarantee claims for any eventual
corrosion damage.
The best protection for the system is regular remov-
al of contaminants of any kind.
This includes above all:
• De-icing salt
• Sand, pebbles, earth
• Industrial dust of all types
• Water, also in connection with other environmen-
tal influences
• Aggressive deposits of all types
• Permanent humidity due to insufficient ventilation
The frequency of system cleaning depends, among
other things on the frequency of use, of system han-
dling, of workshop cleanliness, and the location of
the system.
Furthermore, the degree of contamination de-
pends on the time of year, the weather conditions
and workshop ventilation.
Under adverse circumstances, weekly system
cleaning might be required, however a monthly
cleaning may be sufficient.
Do not use and aggressive and abrasive materials
for cleaning, rather use mild cleaners, e.g. a com-
mercially available detergent and luke warm water.
• For cleaning, do not use high pressure washers
(e.g. steam cleaners).
• Carefully remove all contamination with a
sponge, or if required with a brush.
• Make sure that there is no residue of the cleaner
on the system.
• Dry the system with a cloth and spray it with a
spray wax or oil.
7.4

Cleaning and care of stainless steel

In all cases after assembly, a first cleaning should
be done with our stainless steel cleaner. We recom-
mend our stainless steel cleaning spray (1) for this.
Immediately remove iron particles, grinding dust,
swarf, and weld spatter. These foreign bodies can
accelerate rust if they are deposited on the stainless
steel surface. The passive layer of the non-corroding
steel is broken and this leads to pinhole corrosion.
To guarantee a perfect stainless steel, in princi-
ple we recommend regular cleaning and care
of stainless steel in exterior areas (at best every 6
months).
Contamination and deposits that have already
occurred or severe corrosive etching can be re-
moved with our special „Pelox" cleaner (2).
For stainless steel products that are placed close to
seawater, seawater resistant products can be im-
plemented in V4A quality.
Detailed information can be found under www.
edelstahl-rostfrei.de.
All stainless steel parts from the Feldmann product
range are made from V2A or V4A with material
OPI_SPRINTER MOBIL 2500-3000_V3.1_DE-EN-FR-ES-IT