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Safety instructions
Bosch Rexroth AG
, DB...5X/...XC, RE25802-XC-B/07.19
CAUTION
Contaminated hydraulic fluid!
Contamination in the hydraulic fluid may cause functional failures of the valve.
In the worst case, this may result in unexpected system movements and thus
constitute a risk of injury for persons.
▶
Ensure adequate hydraulic fluid cleanliness according to the details in the
data sheet over the entire operating range.
Leakage in case of incorrect working temperatures!
Use of the valve outside the approved temperature ranges may lead to permanent
leakage at the valves. Thus, hydraulic fluid in the form of a leaking hydraulic fluid jet
may injure persons, lead to damage to property and endanger the environment.
▶
Only use the valve within the intended environmental and hydraulic fluid
temperature range.
▶
In case of leakage, immediately exchange damaged seal rings or the valve.
Corrosion!
The valve described has surface protection (see
"Data sheet 25802-XC"
). Use of the
valve in humid environments still holds the danger of corrosion on the valve and
on the valve mounting screws and thus a reduction of the preload force of the
screw connection. To prevent the valve from becoming loose and causing a risk
of injury:
▶
Exchange the valves with corrosion damages as soon as possible.
▶
Check the surface protection on the valve and the valve mounting screws
at regular intervals.
Contact with salt water leads to increased corrosion on the valve. This can lead
to chemical corrosion of individual components of the valve. Therefore, take
suitable corrosion protection measures.
2.7 Notes on the valve use
▶
Be aware of possible pressure intensification if the valve is connected to the
chamber on the piston rod side of a differential cylinder. If the outflow of the
hydraulic fluid from this chamber is obstructed, pressure on the cylinder may
result in a pressure intensification that may damage cylinder chamber, supply line
and valve.
▶
The valve must always be filled with hydraulic fluid.
