26 © Scania CV 2009
Starting at low temperatures
Local environmental requirements must be complied with. Starting aids,
engine heaters or flame start devices should be used to avoid starting
problems and white smoke.
To limit white smoke, the engine should be run at low speed and under
moderate load. A moderate load on a cold engine gives better combustion and
faster heating than warming up with no load.
Avoid running it longer than necessary at idling speed.
At temperatures below 0°C:
Note: Only use starting aids recommended by Scania.
- The starter motor may only be used for 30 seconds at a time. After that it
must rest for 30 seconds before attempting to start it again. Only 5
attempts may be made to start the engine. After that the starter motor
must rest for 15 minutes before the procedure can be repeated.
Note: If the engine is equipped with an INTERLOCK switch, this
switch should be depressed and held down until the oil pressure
has reached a sufficiently high level.
RUNNING
Check instruments and warning lamps at regular intervals.
Engine speed
The Scania tachometer is divided into different coloured sectors, as follows:
0-500 rpm red area: prohibited engine speed, passed
through when stopping and
starting.
500-700 rpm yellow area: slow idle. Engine idling is
controlled by the S6 control
system. Raised idling speed
with a cold engine.
See page 26.
700-2,200 rpm green area: normal operating speed.
The engine operating speed
range is controlled by the S6
control system.
2,200-2,600 rpm yellow/green
striped:
unsuitable operating speed.
May occur when switching off.
2,600-3,000 rpm red area: prohibited engine speed
The starter motor may only be
cranked for a maximum of
30 seconds. There is risk of
overheating. Let the starter
motor rest for 30 seconds
between each start attempt.
Important
!
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