Installation - Bosch Rexroth CIMS Mk IV Instruction Manual

4. I
NSTALLATION
The CIMS Mk IV 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 pressureless to a
tank.
Warning!
The CIMS Mk IV 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, Appendix A) with
care! No deformation or damage of the sensor is allowed.
The CIMS Mk IV 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 CIMS Mk IV, it is recommended to use a (electronically controlled) torque wrench
for mounting all screws.
The different parts of the CIMS Mk IV 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 damages. Following
steps should be carried out to change an O-ring:
1. Remove the old O-ring from CIMS Mk IV part,
2. Install the new O-ring (as specified in drawing F 037 A00 002, Appendix A) 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 CIMS Mk IV onto the hydraulic cylinder and the
mechanical and electrical installation of the cable.
F 037 300 069 (2013.05.21)
To prevent pressure build-up of leak oil under the CIMS-sensor, either a
check valve or a pressureless connection to a tank has to be present.
13
Figure 1: Check valve