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7.7.1 Assembly steps for the cartridge installation
1.
Check whether the order and serial number on the name plate of the control
cover complies with the information on the cartridge packaging.
WARNING! Damage to persons and property! The approval according to the
Pressure Equipment Directive becomes void when an unapproved cartridge is used.
You may only install cartridges listed in table 8 "Approved cartridges".
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2.
Remove the cartridge from the packaging.
CAUTION! Parts falling out! Risk of injury! The cartridge and the spool with spring
running in it are loosely inserted into the latter. (See elements 4, 5 and 7, fig. 3).
If the packaging is opened improperly or during transport, the spool with spring may
fall out and cause injuries or damage of the parts.
Open the original packaging of the cartridge with the cover facing up to prevent
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parts of the cartridge from falling out.
Transport the cartridge with inserted spool and spring only vertically (e.g. in the
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packaging container) and ensure in case of horizontal installation that the spool
with spring does not fall out of the cartridge.
3.
Check whether all seals are available and intact.
4.
Both the cartridge and the designated installation bore must be intact and clean.
5.
Carefully insert the cartridge (see element 7, fig. 3) into the installation bore and
carefully push it down to the base.
Make sure that no seals are damaged or lost during the insertion.
6.
Make sure that the compression spring is inserted (see element 4 and 5, fig. 3)
7.
Make sure that the axial seal (see element 6, fig. 3) is inserted into the valve
installation surface in the correct position.
7.7.2 Assembly steps for the control cover installation
Both the mounting surface of the control cover and the provided installation surface
must be intact and clean.
Only use non-linting fabric for cleaning the valve installation surface.
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1.
Remove the protective cover from the control cover.
Make sure that the serial number on the control cover name plate complies with
2.
the serial number of the cartridge.
3.
Ensure correct orientation of the control cover. Observe the porting pattern
according to the symbol and connection labeling at the control cover. At the
connection surface of the control cover, a locating pin has been attached
preventing the incorrect attachment of the control cover on the valve installation
surface.
RE 21055-B/02.20, LFA...DB(W).-7X/...E, Bosch Rexroth AG
Assembly
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