Indication Of Operation Of The Hydraulic Distributor Ehs Sections When The Hydraulic Distributor Is Controlled Directly By Two Joysticks (Manual Mode); Order Of The Hydraulic Distributor Ehs Sections Control According To The Specified Algorithm (Automatic Mode) - Belarus 3522.5 Operator's Manual

1 – power disconnect switch of OPU of HLL; 2 – buttons to servo the set-up pro-
gramms P1, P2, P3; 3 – annunciators of programs P1, P2, P3; 4 – annunciators of uplift of
the corresponding hydraulic distributor EHS sections; 5 – annunciator of number of the ac-
tive hydraulic distributor EHS section; 6 – indicator of oil flow value of the active hydraulic
distributor EHS section; 7 – "STOP" switch of hydraulic distributor EHS emergency opera-
tion; 8 – annunciators of lowering of the corresponding hydraulic distributor EHS sections;
9 – buttons to select the hydraulic distributor EHS section.
Figure 2.16.6 – Board of the operation programming unit of the hydraulic lift linkage
2.16.3.2 Indication of operation of the hydraulic distributor EHS sections when the
hydraulic distributor is controlled directly by two joysticks (manual mode)
To work with OPU of the HLL it is necessary to push the power disconnect button 1
(figure 2.16.6). With each power connection function check of all light annunciators and
indicators is carried out in OPU of the HLL. After switch-on all annunciators and indicators
on the unit board shall turn on and off in one-two seconds as well as the acoustic signal.
After this the OPU of the HLL starts to display a current joystick state.
Indication the hydraulic distributor EHS sections when controlled by the joysticks is
the following:
- when the section is set by the joystick into position "uplift" – an uplift annunciator 4 of
the corresponding hydraulic distributor EHS section lights up (figure 2.16.6);
- when the section is set by the joystick into position "lowering" – a lowering annuncia-
tor 8 of the corresponding hydraulic distributor EHS section lights up;
- when the section is set by the joystick into position "floating" –the annunciators 4 and
8 of the corresponding hydraulic distributor EHS sections lights up;
- the annunciator 5 displays the number of the hydraulic distributor EHS section, which
is controlled with the joystick;
- the indicator 6 displays a value of oil flow within the section which is being controlled.
Measuring units for oil flow value are l/min. In the "floating" mode the indicator 6 displays sym-
bols "FL".
2.16.3.3 Order of the hydraulic distributor EHS sections control according to the
specified algorithm (automatic mode).
2.16.3.3.1 Automatic mode of the hydraulic distributor EHS sections control pre-
cludes multiple repetition of the same manual operations by the operator.
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