Assembly And (Initial) Commissioning; Safety Instructions For Assembly And (Initial) Commissioning; Rotating The Solenoid Coil; Installation - Bosch Rexroth M SED 6 VE1 Series Manual

12/20 Bosch Rexroth AG | Hydraulics
6

Assembly and (initial) commissioning

6.1 Safety instructions for assembly and
(initial) commissioning
DANGER
Before any work such as assembly or disassembly is
carried out at the valve, the hydraulic system must be
depressurized and the electrical control de-energized.
In order to avoid dangers from static charges, the
mounting or subplate on which the valve is to be fit-
ted must be electrically conductive and included in
the potential equalization according to IEC 60079-14
and IEC 60364-4-41.
6.2 Rotating the solenoid coil by ±90°
The solenoid coil can be mounted with an offset of ±90° to
the pole tube, i.e. the longitudinal axis of the valve.
IMPORTANT
The pole tube of the valve solenoid is completely sealed
towards the oil circuit. The solenoid coil can therefore still be
twisted if the valve has already been installed.
When turning the solenoid, make sure that it does not proj-
ect over the valve connection surface. Make sure that the
valve solenoid moves freely and does under no circum-
stance rest on the base plate to avoid damages to the valve.
WARNING
Explosion hazard!
Strictly observe the modification instructions as
improper installation causes the loss of explosion
protection.
1. Detach the mounting nut of the valve solenoid at the pole
tube (hexagon nut, wrench size 32) and pull the O-ring off.
See " Data sheet , unit dimensions" .
2. Remove the solenoid coil from the valve and rotate it
by 90° in the desired direction.
3. Re-attach the solenoid coil in the desired position so
that the locating pin of the solenoid coil enters the corre-
sponding locating hole of the valve housing.
4. Mount the O-ring to the pole tube and push it to the sole-
noid coil.
5. Re-tighten the mounting nut of the valve solenoid
(hexagon nut, wrench size 32).
Tightening torque: 4 + 1 Nm
M-.SED 6...VE1... | RA 22049-VE1-B2
6.3

Installation

WARNING
Risk of explosion!
Check whether the explosion protection marks on the
name plate of the valve match the information in these
operating instructions.
Check whether the correct valve type is used
➢
based on the type designation on the name plate of
the valve,
➢
based on the information on the name plate of the
valve solenoid.
Also check the scope of delivery for completeness and
possible transport damage. Also observe the safety
instructions in "5.2 Special residual risks and protec-
tive measures" as well as "5.2.4 Note on the valve use"
and "5.2.5 Working safely at the valve".
Check whether the operating instructions for the valve
are complete. Contact us if the operating instructions
are incomplete.
Before any assembly and disassembly work starts, the sur-
roundings must be cleaned so that no dirt can get into the oil
circuit. Only non-linting fabric or special paper may be used
for cleaning.
IMPORTANT
With the 4/2 directional seat valve, mount the supplied
Plus-1 plate between the valve and the valve connection
surface with throttle insert or check valve insert, if necessary
(see "5.2.4 Note on the valve use").
1. Check the valve contact surface for the required sur-
face quality (see "Dat a sheet, u nit dimensions"). Remove
the protective plate from the valve and keep it safe for
returns in case any repairs become necessary later.
2. Check the seal rings at the valve connection surface
and, if applicable, at the Plus-1 plate for completeness.
Other sealants are inadmissible.
3. Place the valve onto the valve mounting face.
If applicable, install the Plus-1 plate between the valve
and the connection surface.
WARNING
For reasons of stability only use the valve mounting
screws listed in "12.1 Available accessories".
Always fasten the valve with all 4 valve mounting
screws as otherwise, leak-tightness is not guaranteed.