Control Block Assembly - Bosch Rexroth SB23 Manual

8/16 Assembly description
Bosch Rexroth AG, SB23, SB33, EHR23, EHR33, RE 66133-10-R/05.2013

5.3 Control block assembly

Tool • Torque wrench for 30 Nm with socket SW13 mm
For control blocks in EHS version with continuous pilot oil bores Rx and R,
control block segments are needed with O-ring counterbore for the pilot oil
bores.
The O-ring counterbores are designed with different diameters of the respective
following block segment.
For certain block combinations there are versions with O-ring counterbores
without continuous pilot oil bores.
If the control block segment flange surface shows punching marks which have
been processed by means of a whetstone, a spacer
tie rod screws
block the spacer
, and (or to ). (In case of an Open Center control
is threaded only on tie rod
must be threaded on the
.)