3522.5-0000010 РЭ
175
Figure 3.16.9 –Diagram of directive valve positioning and centre slide-valve posi-
tioning at performance of different functions.
Version of programmed flow regulation curve for tractors BELARUS-3522.5 is
shown in figure 3.16.10.
Figure 3.16.10 – Dependence of working liquid flow at outlet from SB 23LS-EHS
distributor sections on control signal value at control by means of joysticks.
On electronic card is installed diagnostic LED (see figure 3.16.8), by flashing of this
LED can be detected possible failures of electrohydraulic distributor EHS. When during
operation of distributor appear failures, the operator should register by LED flashing failure
code and inform dealer about presence of failure with this code and call dealer for distribu-
tor repair.
Note – Failure indication rules of EHS distributor and troubleshooting methods are
described in subsection 7.3 «Possible failures of HLL and guidelines for troubleshooting”.
Electrohydraulic control of slide-valve position of EHS distributor sections allows
automatize control functions according to set operation mode and control strategy of agri-
cultural machines working implements. For this possibility in electronic control system of
hydraulic distributor is included programming unit for programming of hydraulic lift linkage
operations. Rules for EHS distributor control and programming order of sequence of op-
erations are described in subsection 2.16 “Electronic System of Hydraulic Distributor EHS
Sections Control”.
Digital
elec-
tronics
Digital
elec-
tronics
Digital
elec-
tronics
Digital
elec-
tronics
Neutral
Up Down Low fixed position
PWM rate
Averaged value of working liquid flows
of four distributor sections, l/min
https://tractormanualz.com/
To Next Page
