Emergency Conditions Indication Of Hydraulic Lift Linkage And Transmission Hy- Draulic System - Belarus 3522.5 Operator's Manual

3.17 Emergency conditions indication of hydraulic lift linkage and transmis-
sion hydraulic system.
At clogging of duplex filter used for oil clearing in transmission hydraulic system
goes on sensor 3 (figure 3.17.1), on faceplate of CECS panel flashes on annunciatior 4.
Annunciator 5 is standby annunciator. At clogging of HLL pump filter goes on multi-
purpose sensor 1, on faceplate of CECS goes on (and then operates in steady light mode)
annunciator 9. In case of clogging of any hydraulic system filter mentioned above, it is
necessary to change corresponding filtering element.
The annunciator 4 and 9 can come into action for shot time because of cold oil in
transmission and HLL, but it is not a failure.
At emergency fall of oil level in HLL tank is active multi-purpose sensor 2, on face-
plate of CECS lights up annunciator 8.
At oil overtemperature in HLL tank is active multi-purpose sensor 2 and on face-
plate of CECS lights up annunciator 7.
At overtemperature of oil in HLL pump is active multi-purpose sensor 1 and on
faceplate of CECS lights in flashing mode annunciator 9.
If appears any of abovementioned emergency modes, operation must be stopped,
causes of emergency condition occurrence should be find out and removed in order to
avoid failure and breakdown of hydraulic system assembly parts.
The regulations on the use of special switch "FAILURE" are described in section
4.5 "Actions in extreme conditions".
Duplex filter of transmission hy-
draulic system
1 – multi-purpose sensor of HLL pump filter impurity and emergency oil temperature
in HLL pump;; 2 – multi-purpose sensor of emergency fall of oil level and emergency oil
temperature in HLL and HSC tank; 3 – impurity sensor of duplex filter of transmission hy-
draulic system; 4 – annunciator of transmission duplex filter impurity; 5 – standby annuncia-
tor; 6 – switch "FAILURE" 7 – annunciator of emergency oil temperature in HLL tank; 8 –
annunciatior of emergency fall of oil level in HLL in HSC tank 9 – annunciator of HLL pump
filter impurity and emergency oil temperature in HLL pump.
Figure 3.17.1 – Emergency conditions indication of hydraulic lift linkage and trans-
mission hydraulic system.
CECS
HLL tank
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HLL filter
HLL pump