Bosch rexroth SYDFED 2X Series Manual page 76

76/96 SYDFED-2X, SYDFED-3X, SYHDFED-1X | Maintenance and repair
Swivel angle sensor
VT-SWA-LIN-...-G15 for
SYHDFED systems
Seal kits for the pump
Pilot valve VT-DFPD-X-1X
Bosch Rexroth AG, Edition 11.2021, RE 30017-B
▶ A special tool (plastic mounting sleeve, material no. R900846331) is required
for inserting and tightening the countersunk screw! If this mounting sleeve is
not available, use a suitable tool made of non-magnetic material for inserting
the mounting screw and for guiding a screw driver between the poles of the
magnet.
▶ Tighten the countersunk screw M6 x 12 to 10.5 Nm.
After having installed the magnet carrier, check with your fingers, whether the
magnets positively adhere to the carrier.
Installing the VT-SWA-...-G15 swivel angle sensor
▶ "Glue in" the O-ring of the kit in the groove using some grease.
▶ Tighten mounting screws M6 x 35 with washers to 15.5 Nm.
▶ Adjust the swivel angle sensor. Notes on the adjustment can be found in
chapter 15.3.1 "Checking the swivel angle measurement" on page 86 and in
the functional description of the firmware HydraulicDrive in the chapter "Pump
controller calibration".
Miscellaneous
▶ If the magnet carrier has to be removed, also use a suitable mounting sleeve for
loosening the countersunk screw (see note on "Installing the magnet carrier"
above).
If the swivel angle sensor fails, proper operation of the SY(H)DFED system is no
longer possible.
General
The prod is a sensitive component and must therefore be handled with care. In
particular with regard to the magnetic properties, the prod must not be subjected
to hard impacts and has to be kept away from metal parts! Until the carrier is
installed in the pump housing, the original packaging is the safest place of storage.
Installing the VT-SWA-LIN-...-G15 swivel angle sensor
▶ Tighten sensor to 25 +5 Nm (27 mm A/F)
▶ Adjust the swivel angle sensor. Notes on the adjustment can be found in
chapter 15.3.1 "Checking the swivel angle measurement" on page 86.
Stating the Mat. no. of the pump you can order seal kits, which are either tailored
to certain individual components or offered as complete packages.
The pilot valve is a component, which is sensitive to contamination. When
replacing it, take care that no contaminants can enter fluid-carrying parts of the
valve and the pump. To replace the pilot valve loosen the 4 screws at the recessed
corners of the nameplate on the pilot valve. After the replacement, tighten the
screws to a tightening torque of 9 Nm ±1.8 %. Newly installed valves with
integrated electronics need to be adjusted:
▶ If the parameter settings (R parameters) in the replaced valve differ from
the factory setting, the settings have to be adjusted on the valve to be newly
installed.
▶ Carry out a calibration as described in 8.1.9 "Calibrating the SY(H)DFED
control system" on page 70.
To replace the pre-load valve, loosen the mounting screws and remove the pre-
load valve.