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Safety instructions
Bosch Rexroth AG
, 4WS2EM10..5X/...XH..., RE29583-XH-B/09.19
WARNING
Non-compliance with functional safety!
The valve controls movements in machines or systems. In case of mechanical and
electric faults, e.g. failure of the energy supply, persons may be caught by the
system, kicked away or bruised.
▶
During set-up of your circuit, observe functional safety e.g. according to
EN ISO 13849.
Penetrating water and humidity!
In case of use in humid or wet environments, water or humidity may penetrate at
electrical connections or the valve electronics. This may cause malfunctions at
the valve and unexpected movements in the hydraulic system, which may result in
personal injury and damage to property.
▶
Only use the valve within the intended IP protection class or lower.
▶
Ensure before the assembly that all seals are fitted and the electrical
connections are intact.
CAUTION
Contaminated hydraulic fluid!
Contamination in the hydraulic fluid may cause functional failures e.g. jamming or
blocking of nozzles of the valve. In the worst case, this may result in unexpected
system movements and thus constitute a risk of injury for persons.
▶
Ensure an 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 range 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 29583-XH"
). 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.
