MSG11-5715-662 DCV UK.indd 21.07.22
Directly operated and pilot operated directional control valves
Series D1VW / D1DW / D3W / D3DW / D31DW / D41VW / D81VW / D91VW
12
Translation from German
Parker Hannin Corporation
11. Modication
We dene modication as the replacement of a
defective valve with a new valve of the same series.
In particular, it is not permitted to open the valve.
Make sure that the hydraulic system/
machine is unpressurised before the
product is installed/removed.
Note also the information in sections 1. "Warranty
and liability", 2. "Use of operating instructions", 2.
"Compliance with other rules and instructions", 2.
"Personnel requirements" and 3. "Remaining risk".
12. Service/maintenance
Regular maintenance is essential in prolonging the
service life of the system/machine, and safeguards
plant safety and the operational availability of all
components.
Regular maintenance intervals must be adhered
to, according to the cycles established for the user.
The minimum maintenance requirements
for our products are visual inspections
• to check the integrity of the seal at
position control
• to check for leaks
• and to check that the plugs are properly
secured.
Make sure that the hydraulic system/
machine is unpressurised before the
product is installed/removed.
If the product is removed from the sys-
tem/machine for maintenance work, the
system/machine must be disabled so it
cannot be switch on unexpectedly.
Before checking or removing electrical
connections, make certain that the power
supply has been disconnected and steps
have been take to ensure it cannot be
reconnected unintentionally.
As part of servicing/maintenance, only the fol-
lowing items can be replaced with original Parker
replacement parts:
• Accessible O-rings (sealing surfaces)
• Solenoid coils
• Plugs, provided they were included with the
original product
Note also the information in sections 1. "Warranty
and liability", 2. "Use of operating instructions", 2.
"Compliance with other rules and instructions", 2.
"Personnel requirements" and 3. "Remaining risk".
13. Decommissioning
Make sure that the hydraulic system/
machine is unpressurised before the
product is removed.
Note also the information in sections 1. "Warranty
and liability", 2. "Use of operating instructions", 2.
"Compliance with other rules and instructions", 2.
"Personnel requirements" and 3. "Remaining risk".
14. Disposal
At the end of the service life of this
product
• all escaping pressure uids must be
removed and disposed of properly
• any signicant uids remaining in the
product must be removed and disposed
of properly
• all materials must be segregated for
recycling when they are removed and
taken to a suitable recycling centre.
Please segregate the packaging material properly
(e.g. paper, plastic).
None of the components of the product contain
hazardous materials.
The normal local environmental protec-
tion laws must always be met when
disposing of the product.
Note also the information in sections 1. "Warranty
and liability", 2. "Use of operating instructions", 2.
"Compliance with other rules and instructions", 2.
"Personnel requirements" and 3. "Remaining risk".
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