Bosch Rexroth M SE 6 XD Series Operating Instructions Manual page 30

Directional seat valves, direct operated, with solenoid actuation
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Assembly
Bosch Rexroth AG, M-.SE 6 ...XD..., RE22047-XD-B/02.19
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 valve in clean condition.
Make sure that all connections, hydraulic lines and attachment parts are clean.
Ensure that no cleaning agents are able to penetrate the hydraulic system.
Only use seal kits as listed in chapter 10.6 "Spare parts".
With the 4/2 directional seat valve, assemble the supplied Plus-1 subplate
between valve and mounting surface.
To ensure proper functioning, care must be taken that the pressure chamber
of the solenoid is always filled with hydraulic fluid.
1.
Before any assembly and disassembly work starts, the environment must
be cleaned so that no dirt can get into the oil circuit. Only fiber-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 22047-XD"). 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 subplate for completeness. Other sealants are not admissible.
6.
Check whether the pressure connecting line is connected with P and the return
line with T at the subplate.
Exchanging P and T may cause damage at the valve in case of pressurization.
7.
Place the valve on the contact surface. If applicable, assemble the Plus-1 subplate
between valve and connection surface.
Only use valve mounting screws with the thread diameters and strength
properties listed in chapter 7.6 "Required accessories". Observe the minimum
length of the valve mounting screw of 50 mm!
For the valve type M-4SE 6...XD..., valve mounting screws are included in the
scope of delivery.
Always fasten the valve with all 4 valve mounting screws as otherwise,
leak-tightness is not guaranteed.
NOTICE

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