Belarus 892 - Instrument Board

892-0000010B OM
26
2.5 Instrument board
The instrument board 4 (Figure 2.1.1) includes five gauges with five signal lamps as
shown in Figure 2.5.1.
1 – pilot lamp of reserve fuel volume in the tank; 2 – gauge of air pressure in the
pneumatics; 3 – pilot lamp of emergency air pressure in the pneumatics; 4 – gauge of fuel
level in the tank; 5 – voltage gauge; 6 – unused pilot lamp; 7 – pilot lamp of engine coolant
emergency temperature; 8 – engine coolant temperature gauge; 9 – pilot lamp of emergency
oil pressure in the engine lubrication system; 10 – gauge of oil pressure in the engine lubri-
cation system.
Figure 2.5.1 – Instrument board
2.5.1 The scale of the gauge of oil pressure in the pneumatic system 2 has three zones:
- working – from 500 to 800 kPa (green color);
- emergency (two) — from 0 to 500 kPa and from 800 to 1000 kPa (red color).
A pilot lamp 3 (red color) is built in the gauge scale which lights up when pressure in the
pneumatic system drops below 500 kPa.
2.5.2 Voltage gauge 5 (Figure 2.5.1) indicates accumulator battery voltage with the engine
stopped when the key of starter and instrument switch (Figure 2.2.2) is in position “I”. With
the engine running, the voltage gauge indicates voltage in the tractor on-board circuit,
which is set by the alternator.
The states of the power supply system depending on the position of the pointer on
the gauge scale are given in Table 2.5.1.
Table 2.5.1 – The states of the power supply system
Zone on scale of voltage
gauge 5 (Figure 2.5.1), color
States of
p
ower su
pp
l
y
s
y
stem
with the en
g
ine runnin
g
with the en
g
ine sto
pp
ed
13,0
–
15,0 V
g
reen
normal mode of charge –
10,0
–
12,0 V
red
alternator is out of order battery discharged
12,0 – 13,0 V
yellow
No battery charge
(low charging voltage)
battery has a normal charge
15,0
–
16,0 V
red
battery recharge –
white line in the yellow zone -
Rated battery electromotive
force is 12,7 V
ATTENTION: IF THE VOLTAGE GAUGE INDICATES ABSENCE OF BATTERY
CHARGE, CHECK THE CONDITION AND TENSION OF THE ALTERNATOR DRIVE
BELT!
Variant 1 Variant 2