MTZ 952 - Page 82

Operating Instructions
MTZ series 900
82
Starting the engine
Starting under normal conditions:
Check the level of oil in the crankcase and of cooling fluid in the radiator and the pres-
ence of fuel in the tank.
IMPORTANT! Never start the engine with the empty cooling system!
IMPORTANT! Start the engine and check the instrument operation while sitting in the
operator’s seat only.
WARNING: Never operate with tractor indoors.
IMPORTANT! The MTZ-
900.3/920.3/950/950.3/952/952.2/952.3 trac-
tors are equipped with turbocharged diesel
engine. High rotational speeds of the turbo-
charger require the reliable lubrication when
starting the engine. Therefore prior to first
starting or after long-term storage, rotate the
crankshaft by the starter for 10 s without fuel
supply to lubricate the turbocharger bear-
ings. Prior to loading the engine, let it run
idle for 2…3 min.
1 . Apply parking brake (1);
2 . Set the change gear lever (2) to neutral
position, move it to the leftmost posi-
tion and hold it in this position until the
start is completed and the step-down
reducing gear lever (9) to the extreme
position (back or front);
3 . Set the PTO lever (3) to the OFF posi-
tion and the “Synchronous–
Independent” switching lever – to the
“Neutral” position;
4 . Set the ground switch (4) to the ON posi -
tion;
5 . Set the fuel feed arm (5) to the mid-
dle position;
6 . Step on the clutch pedal (6);
7. Turn starter key (7) to the position II
(Start) and hold it until the engine is
started, but not more than 15 s. Then
the start control light in the pilot lamp
block unit (8) will light up. When the
engine starts running, the light shall
become dim. If the engine fails to
start, repeat starting after at least
30…40 s.
ATTENTION! If the starter fails to op-
erate and the pilot lamp of the starter
control board blinks at low frequency
(about 1.5 Hz), this indicates that the
change gear lever is not in neutral po-
sition or there is a breakage in the
start locking circuit. If the light blinks at
high frequency (about 3 Hz), there is a
failure in the alternator circuit (terminal
“W” or ”~”).
8. Release the clutch pedal (6). After
starting the engine, check the opera-
tion of all indicating lamps and in-
strument readings (cooling fluid tem-
perature, oil pressure in the engine
and storage battery charge).
Let the engine run at 1000 rpm to sta-
bilize the oil pressure in the operating
range.