Bosch Rexroth SB23 - Control Block Assembly

8/16 Assembly description
Bosch Rexroth AG, SB23, SB33, EHR23, EHR33, RE 66133-10-R/05.2013
5.3 Control block assembly
• 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
must be threaded on the
tie rod screws
, and (or to ). (In case of an Open Center control
block the spacer
is threaded only on tie rod .)
Tool