Yaroslavl Engine Plant YMZ-536, Руководство по эксплуатации

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engine starts running, release the key so that it is back to the first ( I )
position. The duration of the starter non-stop operation must not
exceed 10 seconds (20 seconds in cold season). If this duration is
exceeded, the starter may fail. Wait for 1 or 2 minutes, then try again.
If after three such tries the engine fails to run, find and eliminate the
fault
6. After the engine is started, do not take off until:

the indicator lamp of the brake system air pressure is off;

the parking brake is put off.
COLD-SEASON START
When starting the engine in cold weather, use fuel preheating
(for details see
Vehicle Operation Manual
) “Vehicle Operation
Manual”
Further actions are the same as for the engine start-up.
The engine is supplied with an electric fuel heating system
which is activated automatically.
After the start of the engine, the engine should be warmed up
to the 80-100º С working temperature under load. Do not warm up
the engine by letting it work at minimum idle speed for a long
time
. As soon as the engine starts reacting to the change in fuel supply
and normal working pressure is provided in the break system,
gradually increase the R.P.M. up to the average working R.P.M. and
drive-off at low-range gears.
ATTENTION!
FULL LOAD ON COLD ENGINE IS NOT ALLOWED.