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12.5 Recycling
Due to the high metal share, hydraulic products can mostly be recycled. In order to
achieve an ideal metal recovery, disassembly into individual assemblies is required.
The metals contained in electric and electronic assemblies can be recovered by
means of special separation procedures as well.
13 Extension and modification
Explosion hazard caused by unauthorized modification!
Any unauthorized modification results in the loss of the explosion protection.
▶
Modifications exceeding the extent described in these operating instructions are
not permitted.
▶
Particularly the solenoid coil must not be moved to the opposite side of
the valve as this would interchange the switching positions and a definite
assignment to the type designation would no longer be possible.
14 Troubleshooting
14.1 How to proceed for troubleshooting
▶
Always work systematically and purposefully, even when under time pressure.
Random and imprudent disassembly and readjustment of settings can, in the
worst-case scenario, result in the inability to determine the original cause of error.
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First get a general idea of the function of your valve in conjunction with the
overall system.
▶
Try to find out whether the valve has functioned properly in conjunction with the
overall system before the error occurred first.
▶
Try to determine any changes to the overall system in which the valve is
integrated:
– Were there any changes to the application conditions or to the area of
application of the valve?
– Have any changes (e.g. refittings) been made or have repair works been carried
out at the overall system (machine/system, electrical systems, control) or at the
valve? If so: What were they?
– Was the valve or machine used as intended?
– How did the fault become apparent?
▶
Try to get a clear idea of the cause of error. Ask the direct (machine) operator.
Extension and modification
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RE 22049-XN-B/05.17, M-.SED 6...XN..., Bosch Rexroth AG
41/48
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