User Manual

Table Of Contents
Electric System LEXION 500 TIC
08a-4 Lex-e-08a 03/05
Description of function:
2/2
Concave display Sensor (B30) receives the necessary 12 V reference voltage from the
power supply relay K52.
The speed monitor module (A12) converts the analogue signal from
sensor (B30) into a digital signal which is displayed on terminal (A30) via
the CAN bus.
Concave pressurising
(hydro-pneumatic overload
system)
In order to avoid threshing drum blocking in case of threshing mechanism
overload, the concave is pressurised hydraulically to 130 bar by an
accumulator.
The adjustment of this hydraulic pressurisation is by the concave overload
system shut-off valve (636) – Hydraulic system, chapter 3.
Reducing the pressurisation Opening the shut-off valve (636) relieves the system pressure to the tank
- the pressure falls.
Increasing the
pressurisation
Opening the shut-off valve (636) in connection with actuating the Fill
accumulator switch (U26) will increase the system pressure. Actuating the
Fill accumulator switch (U26) is necessary to achieve a pressure build-up
in the hydraulic system. After opening the concave overload system shut-
off valve (636), this pressure goes into the accumulator and thus
pressurises the concave hydraulically.
Note: The pressurisation pressure of the hydro-pneumatic overload
protection must be set to 130 bar.