Assembly 27/44
RE29583-XH-B/09.19, 4WS2EM10..5X/...XH...,
Bosch Rexroth AG
NOTICE
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 10.7 "Spare parts".
If the valve is directly attached to a moveable actuator, installation of the valve
control spool parallel to the direction of acceleration of the actuator has to be
avoided.
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 29583-XH"
). 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 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.
Only use valve mounting screws with the thread diameters, screw lengths and
strength properties listed in
"Data sheet 29583-XE"
.
Always fasten the valve with all 4 valve mounting screws as otherwise,
leak-tightness is not guaranteed.
8.
When using the subplates mentioned under 7.6 "Required accessories" or in case
of assembly on comparable cast iron installation surfaces, tighten all four valve
mounting screws with a tightening torque of 12.5 Nm ± 1.5 Nm (with a friction
coefficient of µ
total
= 0.09...0.14). This tightening torque refers to the maximum
admissible operating pressure.
