Diesel engine lubrication system
Type: combined, with oil radiator (or
LOHE for tractors
900.3/920.3/950.3/952.3).
Min oil pressure:
0.08 MPa (0.8 kgf/cm
2
) at 600 rpm.
Normal oil pressure:
0.2…0.3 MPa (2…3 kgf/cm
2
).
Max pressure at cold diesel engine: up
to 0.6 MPa (6 kgf/cm
2
).
Lubrication system capacity: 12 l.
Motor oil brands:
- from -40°С to +5°С: М-8ДМ; М-8Г
2
,
М-8Г
2К
or М4
3
/8Г
2
(SAE-20,
SAE 10W-20);
- from +5°С to +50°С: М-10ДМ; М-10Г
2
;
М-10Г
2К
(SAE-30);
- multigrade oil: SAE 15W-40.
Engine feed system
Fuel pump: 4-plunger pump, in-line, with
boost pump.
Governor: mechanical, variable-speed
(with antismoke pneumatic equalizer – for
diesel engines Д-245.5/Д-245.5C/
Д-245.5 S2/Д-245.43 S2).
Turbocharger: centripetal radial turbine
on a shaft with centrifugal compressor (Д-
245.5/ Д-245.5C/Д-245.5 S2/Д-245.43
S2).
Charge air cooler (for Д-245.5S2/Д-
245.43S2): air-air type, mounted prior to
water radiator.
Fuel filters: coarse filter and secondary fil-
ter (with removable paper filter element).
Fuel brand: Diesel: summer
Л-0.2-40, Л-0.5-40; winter З-0.2, З-0.5; at -
50°С – А-0.2, А-0.4.
Fuel tank capacity: 130 l
(2 tanks); 120 l (one tank) for tractors with
hydraulic lift.
Air cleaner: combined, with centrifugal
and oil-bath air cleaning.
Air cleaner oil bath capacity: 1.5 l (3.0 l
– for the Д-245.5 engine).
Donaldson dry-type air cleaner – for Д-
245.5 S2/ Д-245.43 S2.
Engine starting system
Electric starter type, 12 V or 24 V.
Easy starting facilities:
- electric torch pre-heater (filament plug in
the intake manifold) or filament plugs in
diesel cylinder head (for the engines with
the index ―S2‖).
Engine cooling system
Type: water, closed with forced liquid cir-
culation, temperature controlled by the
thermostatic regulator and a shutter from
the driver’s seat, with expansion tank (for
Д-245.5 S2/Д-245.43 S2).
Normal operating temperature: from 80°С
to 100°С.
Cooling system capacity: 20 l.
Steering control
Type: Hydrostatic power steering with
steering cylinder in the steering linkage.
Independent oil tank of HPS (for MTZ -
900.3/920.3/950.3/952.3).
Safety valve adjustment pressure – 14
MPa.
Shock valve adjustment pressure – 20
MPa.
Oil brands:
BECHEM Stariol №32;
ADDINAL Hydraulikol HLP 32;
THK Hydraulic HLP 32.
Feed pump capacity: 21 l/min (28 l/min)
*
Hydraulic cylinder: two-way type,
• bore: 50 mm (63 mm)
*
• stroke: 200 mm.
Metering pump: volumetric constant: 100
cm
3
/rev (160 cm
3
/rev)
*
, operating pres-
sure: from 10 to 14 MPa. Installed at the
front wall of the cab.
Steering wheel position control limits:
• by inclination: from 25° to 40° with fixa-
tion through 5°;
• by height: – within the range of 100 mm.
Steering wheel free play: not more
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