Maintenance and repair 83/104
RE 92076-01-B/10.2017, A4... with HS5E pilot control valve/Series 3x, Bosch Rexroth AG
With replacement valves, no matching data for the current control system is
stored.
Load basic parameters
When the Load basic parameters command is executed, the current data that
matches the control system is lost.
Before doing this, back up the parameters as described in Chapter8.1.9 “Saving
parameters” on page76.
To replace the pilot valve undo the four screws at the recessed corners of the
name plate on the pilot valve. After 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 must be adjusted on the installed valve.
▶ Carry out calibration according to the description in Chapter8.1.8 “Calibrating
the HS5E control system” on page75.
HS5E pilot control valve HS5E/6 CA 24L-2X/VH/& < Size 250 R901448624
HS5E pilot control valve HS5E/6 CA 40L-2X/VH/& ≥ Size 250 R901448627
For HFC hydraulic fluids
HS5E pilot control valve HS5E/6 CA 24L-2X/MH/& < Size 250 R901467728
HS5E pilot control valve HS5E/6 CA 40L-2X/MH/& ≥ Size 250 R901467727
Undo the electrical connection on the pressure sensor’s connector. Replace the
pressure transducer by unscrewing the old pressure transducer and screwing in the
new one. Tighten the pressure transducer to a maximum torque of 20 - 25 Nm.
Tighten the M12 cable connections to 0.6Nm±6%.
You can obtain appropriate installation keys for low-torque ranges like this from
manufacturers like the Murr company, for example.
Table 24: Rexroth part number of cable set
Rexroth part number Cable set Cable length [cm]
R901472424 7000-40501-2410060 60
R901472416 7000-40501-2410070 70
R901472425 7000-40501-2410080 80
R901472418 7000-40501-2410090 90
R901464411 7000-40501-2410100 100
R901472426 7000-40501-2410110 110
R901472420 7000-40501-2410120 120
Please contact us to select the appropriate cable.
Pressure transducer
HM20-X
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