Cold Start - Preheating - Case WX145 Operator's Manual

SECTION 3

COLD START - PREHEATING

The machine can be equipped with a preheating
device.
By means of this system and using winter grade fuel,
resistant up to -15 °C (5 °F), the operation is safe up
to a temperature of about -25 °C (-13 °F).
If with temperatures lower than -25 °C (-13 °F), fuel
should still be so thick to prevent the engine from
starting, bring the machine for a certain time, into a
warm environment.
Fuel additives (fluidizing) and similar products have
not to be mixed up with diesel oil at all.
With temperatures (engine coolant) between -1,5 °C
(29.3 °F) and -28 °C (-18.4 °F), the preheating stage
starts about 1-2 seconds after the setting of the igni-
tion key to position "I". The lamp (1) on display lights
up for about 10-15 seconds. As soon as the lamp
turns off, bring key to position "II" and start the
engine. When the preheating stage is ended (lamp
(1) turns off), to activate the post-heating stage in
stand-by, still 30 seconds are available for the
engine start and for the activation of the post-heat-
ing. If this is not the case, for the starting stage are
still available from 0 to 15 seconds, for the heating
of the intake air.
In order to activate the post-heating phase, the
engine should necessarily be started within a limit
time of 40-45 seconds from ignition activation.
The post-heating stage begins after the loading volt-
age for alternator is available. It lasts between 60
and 120 seconds according to the temperature.
To obtain the best cold start performance, the
engine should be started (ignition key turned to posi-
tion "II") immediately after the turning off of the lamp
(1).
If the engine temperature is higher than 10 °C
(50 °F), after start-up, the engine turns idle for 3
seconds.
If the engine temperature is lower than 10 °C
(50 °F), after start-up, the engine turns for 3 sec-
onds between 900 and 1400 rpm (depending on
temperature).
After that and in both cases, the engine sets auto-
matically on rpm of power level 2.
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