PRONAR T780 Translation Of The Original Instructions page 69

sub assemblies is equally required in each instance of mechanical damage. In the event of
confirmation of damage of hydraulic ram cylinders they must be replaced or repaired. In such
an event the whole set of seals must be changed.
Hydraulic conduits should be replaced after 4 years of trailer use.
Detailed tightness and technical condition inspection of hydraulic system should be
made at least annually.
TABLE 5.3 HL32 HYDRAULIC OIL CHARACTERISTICS
ITEM
1 ISO 3448VG viscosity classification
2 Kinematic viscosity at 40
3 ISO 6743/99 viscosity classification
4 DIN 51502 quality classification
ATTENTION!
Trailer with a leaking hydraulic system must NOT be used.
The condition of hydraulic systems should be inspected regularly while using trailer.
The hydraulic system is under high pressure when operating.
Regularly check the technical condition of the connections and the hydraulic conduits.
Use the hydraulic oil recommended by the Producer. Never mix two types of oil.
In the event of necessity of changing hydraulic oil for another oil, check the recommendations
of the oil producer very carefully. If it is recommended to flush the system with the
appropriate preparation, then it is necessary to comply with these recommendations.
Attention should be given, so that chemical substances used for this purpose do not damage
the materials of the hydraulic system.
The oil applied because of its composition is not classified as a dangerous substance,
however long-term action on the skin or eyes may cause irritation. In the event of contact of
NAME
0
C
5.10
VALUE
32
28.8 – 35.2
2
mm /s
HL
HL