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2.6 Product-specific safety instructions
The following safety instructions apply to chapters 6 to 14.
Explosion hazard due to ignitable atmosphere during all work on the valve!
During all work on the valve (assembly, disassembly etc.), an explosive atmosphere
must be avoided! Otherwise, an ignition may be triggered which may lead
to an explosion.
▶
Before working with the valve, ensure that no explosive atmosphere can occur
during the work.
Easily inflammable liquid!
In connection with an explosive atmosphere or other heat sources, the use
of liquids (e.g. hydraulic fluid, coolants etc.) may lead to explosions.
▶
Only use the valve in the intended explosion protection area.
▶
The ignition temperature of the liquid used must be 50 K higher than the
maximum surface temperature.
Exceeding the maximum temperatures!
The use of the valve outside the approved temperature ranges may lead
to functional failures like overheating of the valve solenoid. Explosion protection
is therefore no longer ensured.
▶
Only use the valve within the intended environmental and hydraulic fluid
temperature range.
Valve solenoid has hot surface!
Risk of burning!
▶
Provide a suitable touch guard.
▶
During operation, only touch the valve solenoid with heat-protective gloves.
Allow the valve solenoid to cool down to room temperature before touching
it directly with your hands during maintenance works.
Pressurized system parts and leaking hydraulic fluid!
When working at hydraulic systems with stored energy (accumulator or cylinders
working under gravity), valves may even be pressurized after switching off the
pressure supply. During assembly and disassembly works, the valve or parts may
be ejected and cause personal injury and/or damage to property. Furthermore,
there is the danger of severe injury caused by a powerful leaking hydraulic fluid jet.
▶
Ensure before working at the hydraulic product that the hydraulic system
is depressurized and the electrical control de-energized.
▶
Completely unload the pressure at machines and systems before working at the
valve.
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.
Safety instructions
WARNING
RE 29115-XE-B/09.19, 4WRZ..7X/...XE..., Bosch Rexroth AG
13/48
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