2122.6-0000010 OM
65
1 – OPU for HLL power cutoff switch; 2 – buttons for selecting programmes P1, P2,
P3; 3 – annunciators for programmes P1, P2, P3; 4 – annunciators for uplift of correspond-
ing sections in EHS hydraulic distributive valve; 5 – annunciator for operating section
number of EHS hydraulic distributive valve; 6 – indicator for oil flow amount in operating
section of EHS hydraulic distributive valve; 7 – switch “STOP” for emergency shut-down of
EHS hydraulic distributive valve operation; 8 – annunciators for lowering corresponding sec-
tions of EHS hydraulic distributive valve; 9 – buttons for selecting EHS hydraulic distributive
valve sections.
Figure 2.19.6
– Panel of operations programmer unit for hydraulic lift linkage
2.19.3.2 Operation indication of EHS hydraulic distributive valve sections when
controlling hydraulic distributive valve directly from two joysticks (manual mode)
For operation with OPU for HLL, press power cutoff button 1 (figure 2.19.6).
At each connection to power supply, in OPU for HLL there is carried out a check of func-
tioning of all light annunciators and indicators. After switching on, all annunciators and in-
dicators shall pop up on the unit panel, and after one-two seconds go out, as well as an
audible signal. After this, OPU for HLL starts to reflect the current condition of joysticks.
Operation indication of EHS hydraulic distributive valve sections when controlling
the hydraulic distributive valve with joysticks is carried out in the following way:
- when setting the section into the “uplift” position using a joystick – annunciator for up-
lift 4 (figure 2.19.6) of the corresponding section in EHS hydraulic distributive valve pops up;
- when setting the section into the “lowering” position using a joystick – annunciator for
lowering 8 corresponding section of EHS hydraulic distributive valve pops up;
- when setting the section into the “floating” position using a joystick – annunciators 4
and 8 of corresponding sections in EHS hydraulic distributive valve glow at the same time;
- annunciator 5 indicates the section number of EHS distributive valve on which joy-
stick control is carried out;
- indicator 6 indicates oil flow amount in the section on which control is carried out.
Unit of measurement for oil flow amount in the section is l/min. Indicator 6 indicates sym-
bols “FL” in the “floating” mode.
2.19.3.3 Control procedure for EHS hydraulic distributive valve on the set
algorithm (automatic mode)
2.19.3.3.1
А
utomatic control mode for EHS hydraulic distributive valve sections allows
to avoid multiple repetition of carrying out the same operations by the operator manually.
When carrying out operations on controlling units, connected to EHS hydraulic dis-
tributive valve sections, OPU for HLL allows to memorize and reproduce the operations,
carried out before. OPU for HLL possesses an ability to memorize three different se-
quences of operations using joysticks.
https://tractormanualz.com/
