2122.6-0000010 OM
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2.19.4 Flow restriction
Electronic control system for EHS hydraulic distributive valve sections has a func-
tion of “flow restriction” to control coupled agricultural implements, operating on less oil
flows. When setting “flow restriction” function, a more accurate and smooth control on the
specified flows is carried out. In standard mode, oil flow amount can be changed from 0 to
85 l/min for each section, when “flow restriction” function is switched on – from 0 to 40
l/min.
To activate this function, on electronic control panel (ECP) 35 (figure 2.1.1) there
are four buttons 2 (figure 2.19.7) for switching on “flow restriction” for each section of the
hydraulic distributive valve.
The operation procedure for “flow restriction” function is the following:
- pressing buttons 2 for switching on “flow restriction” select the required sections of
EHS hydraulic distributive valve for which it is necessary to carry out “flow restriction”. Af-
ter pressing buttons 2, annunciators 1 for corresponding sections of EHS hydraulic dis-
tributive valve start to glow;
- carry out control of the selected sections by means of joysticks with regards to exist-
ing “flow restriction”;
- switching off “flow restriction” function is carried out by repeated pressing button 2
for corresponding sections, after which annunciators 1 go out.
-
1 – annunciators for switching on “flow restriction” on hydraulic distributive valve
section; 2 – buttons for “flow restriction” start on hydraulic distributive valve section.
Figure 2.19.7
– ECP elements for “flow restriction” switching on and indication on
EHS hydraulic distributive valve sections
2.20 Switching unit, switching and security unit and electric cutout fuses
2.20.1 General information
Electric cutout fuses are intended for the protection of electrical lines against over-
loads and short circuit.
WARNING: TO AVOID BURNING OF TRACTOR WIRING, NEVER USE FUSES
WITH CURRENT RATING HIGHER THAN THE RATINGS SPECIFIED IN THIS SEC-
TION. IF A FUSE OFTEN BURNS OUT, FIND OUT THE CAUSE AND ELIMINATE THE
FAILURE!
EE fuses are located in a switching unit and engine compartment and specified in
clause 2.20.2 “Switching unit and fuses for electrical equipment”. ECS fuses for rear axle
DL, FDA, GB reduction unit, FPTO, RLL and ECS fuses for engine are located in a switch-
ing and security unit and specified in clause 2.20.3 “Switching and security unit”.
2.20.2 Switching unit and fuses for electrical equipment
Switching unit 3 (figure 2.20.1) is intended for current supply, its distribution among the
consumers of tractor electrical equipment and for the protection of electrical lines against cur-
rent overloads and short circuit.
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