Belarus 3522.5, Operator'S Manual

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3522.5-0000010
РЭ
52
2.13.5 Complex electronic control system
2.13.5.1 General information on assignment of complex electronic control system
The complex electronic control system (CECS) on “BELARUS-3522.5” tractors is in-
tended to perform the following functions:
- indication of the gear engaged;
- control of gearshifting mode;
- rear PTO control;
- front PTO control;
- FDA drive control;
- rear axle differential lock control;
- warning indication of fault condition of transmission hydraulic system and HLL,
testing emergency voltage in on-board system;
- failure testing of electronic systems controlling RPTO, FPTO, FDAD, rear axle DL,
gearshifting;
Allocation of control elements, indicators and CECS annunciators is given in figure
2.13.4.
Confirmation of sending request for drive operation modes by buttons is accompa-
nied by a short acoustic signal.
Switching on parking lights decreases lighting brightness of CECS indicators and
annunciators.
ATTENTION: PILOT ANNUNCIATING LAMPS ARE ON AND OFF SYNCHRO-
NOUSLY WITH CHANGES IN STATE OF SYSTEM SENSORS!
1 – FPTO and RPTO emergency-stop button; 2 – FPTO engagement annunciator; 3
– FPTO engagement button; 4 – RPTO engagement annunciator; 5 – RPTO engagement
button; 6 – annunciators of gear engagement (first to sixth); 7 – digital indicator; 8 – annun-
ciator of gearbox emergency operation state; 9 – indicator of gear shifting mode; 10 – annun-
ciator of engagement of front driving axle drive (FDAD) automatic mode; 11 – button of en-
gagement of front driving axle drive (FDAD) automatic mode; 12 – annunciator of engage-
ment of rear axle differential lock (RADL) automatic mode; 13 – button of engagement of
RADL automatic mode; 14 – annunciator of emergency oil level in hydraulic lift linkage (HLL);
15 – annunciator of HLL pump filter impurity and emergency temperature of oil in HLL pump;
16 – annunciator of impurity of duplex filter in transmission hydraulic system; 17 – backup
annunciator; 18 – button to switch off the acoustic annunciator (buzzer); 19 – annunciator of
oil emergency temperature in HLL tank; 20 – annunciator of CECS emergency feed voltage;
21 – annunciator of RADL engaged condition; 22 – button to engage RADL positive mode;
23 – annunciator of RADL positive mode engagement; 24 – annunciator of FDAD engaged
condition; 25 – button to engage FDAD positive mode; 26 – annunciator of FDAD positive
mode engagement; 27 – button to select mode of gearshifting; 28 – annunciator of zero gear
(“0” gear); 29 – annunciator of RPTO engaged condition; 30 – button to disengage RPTO; 31
– annunciator of RPTO disengagement; 32 – button of FPTO disengagement; 33 – annun-
ciator of FPTO disengagement; 34 – annunciator of FPTO engaged condition; 35 – button to
activate acoustic signal.
Figure 2.13.4 – Complex electronic control system
2.13.5.2 Indication of the engaged gear and gear switching mode control
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