Installation - Bosch Rexroth CIMSmart Instruction Manual

4. I
NSTALLATION
The CIMSmart is installed into a separate flange in the head of the cylinder outside of the high-
pressure zone. The flange contains a special bore pattern, as shown in Appendix B, drawing 3-
033701, which provides the interface between CIMS and the cylinder.
Installing or replacing of the CIMS can be executed without infringement of the hydraulic integrity of
the hydraulic cylinder.
To prevent pressure build-up of leak oil under the CIMS-sensor, a check
valve has to be installed in the leak oil connection in the sealing flange of the
hydraulic cylinder. This check valve (see Figure 1) is delivered together with
CIMS. The opening pressure of this check valve is 0.25 bar. Through this
check valve the leak oil is bled into the environment. If this is not allowed, the
leak oil connection from the cylinder has to be connected to a tank such that
there is no possibility to build up pressure in this connection.
To prevent pressure build-up of leak oil under the CIMS-sensor, either a
check valve or an open connection to a tank has to be present.
Warning!
The CIMSmart has to be mounted and demounted with care. Using tools like a hammer or crowbar
may lead to tensions and damage of the sensor. Also prevent that the CIMS is exposed to high
accelerations/shocks from e.g. hammer blow, screw-on with automatic screwdriver, etc.. Especially
handle the sensitive surface (as indicated in drawing F 037 A00 002, 0) with care! No deformation
or damage of the sensor is allowed.
The CIMSmart connection must never be disconnected while under power.
Do not install / remove the CIMS from the cylinder with the supply voltage being applied.
Do not touch the printed circuit board (PCB) or any other electrical components, as the CIMS
contains electronic components that can potentially be damaged due to electrostatic discharge.
For installing the CIMSmart, it is recommended to use a (electronically controlled) torque wrench
for mounting all screws.
The different parts of the CIMSmart are sealed with O-rings. Those O-rings are vulnerable parts
and have to be handled with care. An O-ring has to be replaced in case of damage. Following
steps should be carried out to change an O-ring:
1. Remove the old O-ring from CIMSmart part,
2. Install the new O-ring (as specified in drawing F 037 A00 002, 0) with some grease (Shell
Rhodina EP (LF)2) to make the mounting of the parts easier and to prevent damage to the
O-rings.
The following sections describe the mounting of CIMSmart onto the hydraulic cylinder and the
mechanical and electrical installation of the cable.
F037 300 069 (2015.09.02)
13
Figure 1: Check valve