20
© Scania CV 2011
Starting at low temperatures
Local environmental requirements must be complied with. Starting aids,
engine heaters 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 must only be cranked for 30 seconds at a time. After
that it must rest for 30 seconds before the next attempt to start it.
Max. 5 start attempts are permitted. 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 EMS/S6
control system. Fixed raised
idling speed with a cold
engine. See page 20.
700-2,200 rpm
green area:
normal operating speed
The engine operating speed
range is controlled by the
EMS/S6 control system.
2,200-2,600 rpm
yellow/green
striped area:
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 a risk of
overheating. Let the starter
motor rest for 30 seconds
between each attempt to start
the engine.
WARNING
!
