MTW Belarus 90 - Self-Contained Instruments

Section C. Controls and Instruments Belarus – 90/92 Operating manual
28
Self-contained instruments
Index of temperature of cooling
liquid(1)
Index (1) shows temperature of cooling
liquid of diesel engine in degrees. Scale
has three zones:
- working – 80 - 100º С – green colour;
- warning – 40 - 80º С – yellow colour;
- emergency – 100 - 120º С – red colour;
Index of fuel level (3)
Index (3) shows quantity of fuel in tank. Do
not assume full bleeding of fuel tanks in
order to prevent hit of air in fuel system.
Device has division:
0 – 0,5 - P
Indicator of voltage (2)
It shows voltage of storage battery at idle
diesel engine, when key of switch of starter
(1) is in a position «I». At diesel engine
operation index of voltage shows voltage in
onboard network of tractor.
Zone on scale,
colour
Condition of feed system
At diesel
engine work
At idle diesel
engine
13,2 – 15,2 В
green
Normal mode
of charge
10,0 – 12,0 В
red
Generator
does not
operate
Storage
battery is
discharged
12,0 – 13,2 В
yellow
Charge of
storage battery
is absent (low
charge voltage)
Storage
battery has
normal charge
15,2 – 16,0 В
red
Storage
battery
recharge
12,7 – 12,0
yellow
Beginning of
discharge of
storage battery
White hairline
in yellow zone
Nominal
electromotive
force of storage
battery – 12,7 V
IMPORTANT! If device shows absence of
charge of storage battery, check condition
and tension of drive belt of fan.
Index of oil pressure in diesel engine (4)
At diesel engine work watch instrument
registration. Normal pressure of oil 1...5
kgs/sm
2
(green sector of scale). It is
possible to increase pressure till kgs/sm
2
on cold diesel engine.
IMPORTANT! Do not permit diesel engine
work with instrument registration in red
zones of scale at nominal mode. It is too
low or it is absent , stop diesel immediately,
find and eliminate malfunction.
Тachospidometer (5)
1. White background — scale of speeds of
tractor moves (km/h) for II, III, IV
rangers (5... 16 gears) gear box.
2 and 3. Green background — scale of
frequency of rotation of independent
rear PTO (rev/min);
4. Black background — scale of high-
speed mode of diesel engine (rev/min);
5. Scale of operating time of diesel
engine in motor hours.
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