Cab Ventilation; Instrument Board - Belarus 1822.3 Operator's Manual

2.4.3 Cab ventilation

During the conditioner operation in the cooling and heating modes the cab ventila-
tion is executed simultaneously. To make the conditioner operate only in the ventilation
mode it is necessary to close the heater control valve, set the switch 2 (figure 2.4.1.) in po-
sition "0" and the switch 1 in any of three marked positions.

2.5 Instrument board

The instrument board 13 (figure 2.1.1) includes six gauges with five signal lamps as
shown in figure 2.5.1.
Variant 1
1 – gauge to indicate oil pressure in the transmission system; 2 – signal lamp of
emergency air pressure in the pneumatic system; 3 – gauge to indicate air pressure in the
pneumatic system; 4 – pilot lamp of additional accumulator battery charge with 24V; 5 –
voltage gauge; 6 – signal lamp of reserve fuel volume in the tank; 7 – gauge to indicate
fuel volume in the tank; 8 – signal lamp of emergency temperature of engine coolant; 9 –
gauge to indicate temperature of engine coolant; 10 – gauge to indicate oil pressure in the
engine lubrication system; 11 – signal lamp of emergency oil pressure in the engine lubri-
cation system;
2.5.1 The gauge of oil pressure in the transmission hydraulic system 1 (figure 2.5.1)
indicates oil pressure in the hydraulic system of friction clutches control in tractor transmis-
sion.
The scale of oil pressure gauge has three zones:
- working — from 800 to 1500 kPa (green color);
- emergency (two) — from 0 to 800 kPa and from 1500 to 1800 kPa (red color).
The normal working oil pressure in the hydraulic system of the transmission is 900
to 1100 kPa.
2.5.2 The scale of the gauge of oil pressure in the pneumatic system 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 signal lamp 2 (red color) is built in the gauge scale which lights up when the pres-
sure in the pneumatic system drops below 500 kPa.
2.5.3 The voltage gauge 5 (figure 2.5.1) indicates accumulator batteries voltage
with the engine stopped when the key of starter and instruments switch (figure 2.2.2) is set
in position "I". With the engine running the voltage gauge indicates voltage on generator
terminals. A pilot lamp 4 of red color is built in the scale of voltage gauge. It is used only
with 24V starting system. It indicates the process of the additional battery charge with 24V
– it checks the workability of the voltage converter.
Figure 2.5.1 – Instrument dashboard
28
https://tractormanualz.com/
2022.3-0000010 OM
Variant 2