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Insufficient installation space!
Insufficient installation space may lead to jamming or abrasions in case of actuation
and adjustment work at the valve.
▶
Provide for sufficient installation space.
▶
Ensure that actuation, adjustment elements and plug-in connectors are easily
accessible.
leaking hydraulic fluid!
Hydraulic fluid may leak during assembly and disassembly of the valve.
Consequently, persons may slip or fall.
▶
Only remove the protective caps of valve directly before the assembly.
▶
After the disassembly, provide the bores containing the hydraulic fluid with
suitable closing elements.
▶
Immediately remove leaked hydraulic fluid.
wear, tear and malfunctions!
The cleanliness of the hydraulic fluid has a considerable impact on the cleanliness
and life cycle of the valve. Any contamination of the hydraulic fluid will result in
wear and malfunctions. Particularly foreign particles may damage the valve.
▶
Always ensure absolute cleanliness.
▶
Install the safety valve so that it is free from dirt.
▶
Make sure that all connections, hydraulic lines and attachment parts are clean.
▶
Ensure that no cleaning agents are able to penetrate the hydraulic system.
▶
Do not use hemp as a sealant under any circumstances.
With the 4/2 directional seat valve, you have to assemble the supplied Plus-1
plate between valve and valve mounting surface, with throttle insert or check
valve insert, if necessary (see chapter 2.7 "Notes on the valve use").
To ensure proper functioning, care must be taken to ensure that the pressure
chamber of the solenoid is always filled with hydraulic fluid.
1.
Before any assembly and disassembly work starts, the surroundings must be
cleaned so that no dirt can get into the oil circuit. Only fibre-free cloth or special
paper may be used for cleaning.
2.
Remove existing preservative agent.
3.
Check the valve contact surface for the required surface quality
(see "Data sheet 22049-XN"). Remove the protective plate from the valve and
keep it safe for returns in case any repairs become necessary later.
4.
Dry the valve connection surface using suitable cleaning materials.
5.
Check the seal rings at the valve connection surface and, if applicable, at the
Plus-1 plate for completeness. Other sealants are not admissible.
6.
Check whether at the subplate, the pressure connecting line is connected to
P and the return line to T.
CAUTIOn
NOTICE
RE 22049-XN-B/05.17, M-.SED 6...XN..., Bosch Rexroth AG
Assembly
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