Section C. Controls and Instrumentation Belarus – 510/512 Operating manual
32
Autonomous instruments
Coolant temperature indicator (1)
The indicator (1) shows the engine coolant
temperature in degrees. The scale has
three zones:
- operating: 80 to 100°C - green;
- warning: 40 to 80°C - yellow;
- emergency: 100 to 120°C - red;
Fuel level indicator (3)
The indicator (3) shows the amount of fuel
in the tank. Do not let the fuel tanks to be
fully emptied in order to avoid ingress of air
to the fuel system.
The instrument has a mark-up:
0 - 0.5 –
П
Voltage indicator (2)
The device indicates SB voltage on a dead
engine when the starter key (1) is in posi-
tion “I”. When the engine is running, the
voltage indicator shows voltage in the trac-
tor electric system.
Scale zone,
color
Feed system condition
when engine is
running
when engine is
off
13.2 – 15.2 V
green
normal charg-
ing mode
10.0 – 12.0 V
red
generator not
operating
battery dis-
charged
12.0 – 13.2 V
yellow
no SB charging
(low charging
voltage)
SB has normal
charging
15.2 – 16.0 V
red
SB recharged
12.7 – 12.0
yellow
SB charging
start
white hairline
in yellow zone
SB rated EMF –
12.7 V
IMPORTANT!
If the instrument shows no
SB charging, check the condition and ten-
sion of the fan driving belt.
Engine oil pressure indicator (4)
When the engine is running, monitor the in-
strument readings. The normal oil pressure is
1 to 5 kgf/cm² (green zone of scale).
On a
cold engine, the pressure can rise to 6
kgf/cm².
IMPORTANT!
Do not let the engine oper-
ate when the instrument readings are in the
red zones at the rated mode. If the oil pres-
sure is too low or absent, immediately stop
the engine, find and correct the fault.
Tachometer/speedometer (5)
1. White background — tractor speed scale
(km/h) at II, III, IV GB ranges (5 to 16
gears).
2 and 3. Green background — rear inde-
pendent PTO speed scale (rpm);
4.
Black background — engine speed
mode scale (rpm);
5.
Engine service hours scale.
