Belarus 80.1 Operation Manual page 78

2.28.3.2 Voltage indicator 2 (figure 2.28.3) displays accumulator batteries voltage
with the non-running engine when the starter and instruments switch key (figure 2.2.2) is in
position "I". With the engine running voltage indicator displays the voltage in the alternator
terminal.
The status of the supply system depending on the position of the needle on the in-
dicator scale is given in table 2.28.1
Table 2.28.1 – Status of the supply system
Area on the voltage indicator
scale 2 (figure 2.28.3),
Color
13,0 – 15,0 В, green
10,0 – 12,0 В, red
12,0 – 13,0 В, yellow
15,0 – 16,0 В, red
White mark in the yellow ar-
ea
ATTENTION: IF VOLTAGE INDICATOR SHOWS THAT THERE IS NO AB
CHARGING, CHECK THE CONDITION AND TENSION OF THE ALTERNATOR DRIVE
BELT.
2.28.3.3 Indicator scale of fuel level in tank 3 (figure 2.28.3) has graduation "0-0,5 –
П". Warning lamp is built in the indicator scale (orange color), which lights up when fuel
level in the tank drops to 1/8 of the total tank level.
ATTENTION: DO NOT ALLOW FUEL CONSUMPTION TO THE CONDITION OF
A "DRY TANK" (NEEDLE IS IN THE ORANGE COLOR AREA), TO AVOID AIR INTAKE
INTO THE FUEL SYSTEM!
2.28.3.4 Oil pressure indicator in the engine lubrication system 4 (2.28.3) has three
areas:
- working – from 100 to 500 kPa (green color);
- emergency (two) – from 0 to 100 kPa and from 500 to 600 kPa (red color).
ATTENTION: WHEN STARTING THE ENGINE THE PRESSURE 600 kPa AND
ABOVE IS POSSIBLE!
ATTENTION: DO NOT ALLOW ENGINE OPERATION WHEN GAUGE INDICA-
TIONS ARE IN THE RED SCALE AREAS IN NORMAL MODE. IF OIL PRESSURE IS
TOO LOW OR THERE IS NO OIL PRESSURE, STOP THE ENGINE IMMEDIATELY AND
ELIMINATE THE MALFUNCTION.
2.28.3.5 On tractors "BELARUS-80.1/82.1" the mechanical tachospeedometer TX
135 is installed.
The tachospeedometer TX 135 displays calculated tractor travel speed on seven
scales 1 (figure 2.28.4) depending on the gear engaged 3, 4, 5, 6, 7, 8 or 9 (with the gear
reduction unit actuated).
The tachospeedometer TX 135 is shown in figure 2.28.4.
Status of the supply system
With the engine running
Normal charging mode
Alternator not working
No AB charging
(low charging voltage)
AB recharging
No AB charging
(low charging voltage
78
80-0000010B OM
With the non-running engine
–
AB discharged
AB has normal charge
–
AB rated voltage – 12,7 V