ATT NUSSBAUM SPRINTER MOBIL 2500 Manuel D'exploitation page 61

• According to manufacturer instructions, the hy-
draulic oil should be changed every two years in
normal operations. Various environmental infl u-
ences e.g. location, temperature swings, inten-
sive operation etc., can have an infl uence on the
quality of the hydraulic oil. For this reason, the oil
must be checked during annual safety inspec-
tions and maintenance.
The oil is used if it has a milky colour or if the hy-
draulic oil smells unpleasantly.
To change oil, lower the lift is to its lowest position
then suction the oil out of the oil container and
replace the contents.
The manufacturer recommends a high-quality
clean hydraulic oil. The required oil volume and
type is to be taken from the technical data. Af-
ter fi lling, the hydraulic oil must be between the
upper and lower marking on the oil dipstick, or
approx. 2 cm below the oil fi lling opening.
Dispose of the old oil according to regulations
to the intended location (district offi ces, environ-
mental protection offi ce or commercial regula-
tory offi ce has the obligation to disclose about
disposal points).
• All weld seams must have a visual inspection. Stop
the system and contact the manufacturer if there
are cracks or breaks in weld seams.
• Check the powder coating and improve if re-
quired.
Damage by external infl uences is to be treated
immediately after detection. If these points are
not treated, infi ltration of deposits of all kinds can
cause wide-ranging and permanent damage.
These points are to be lightly sanded (120 grit),
cleaned and degreased. Afterwards, rework with
a suitable touch up paint (note the RAL No.).
• Check galvanized surfaces and touch up as
needed. White rust is fostered by permanent hu-
midity, poor ventilation.
Rust is brought out by mechanical damage, wear,
aggressive deposits (de-icing salt, leaking operating
fl uids) cleaning that is not done or incomplete.
The affected areas can be treated by using a
sanding cloth (A 280 grit). If required, the parts
are to be treated with a suitable, resistant mate-
rial (paint etc.).
AD H9451 12.06.2015 SPRINTER MOBIL - HYMAX PRO
• Check the protective hose and hydraulic hoses:
Check the condition of the protective hose
around the hydraulic lines. These should be ex-
changed if there is damage. During this, check
hydraulic lines for any crushing points (from third
party infl uences, e.g rolling over it with a load).
Any affected lines must be exchanged. Other-
wise pressurized hoses must be exchange as re-
quired, however at latest after 6 years.
Hose lines are to be replaced:
• for damage to the outer coating up to the in-
sert (chafe marks, cuts, cracks)
• for brittleness of the outer coating (crack for-
mation), deformation of the natural shape in
the depressurized and in pressurized states.
• if leaking
• for damage or deformation of the mounting fi x-
ture
• if the mounting fi xture has meandered
• if the lifetime has been exceeded
Repair of the hose line using the implemented
hose / mounting fi xture is not permitted!
Extending the replacement intervals given in the
guideline is possible if the inspection for safe-work
condition is done in adjusted, shortened time
frames, if required and by competent personnel.
If ther is an extension of the replacement interval,
no situation may occur which could result in injury
of employees or other personnel.
• For systems with aluminium panelling, these must
be removed to clean the drive in rails of dirt.
• Check the torque of the fastening anchor.
• The condition and function of the load suspension
means are to be checked.
• Check the torque of the fastening screws.
Also see the assembly protocol.
61