Hitachi EX1900-5, Operator'S Manual

Page: 93 / 281

OPERATING THE ENGINE
3-5
STARTING IN COLD WEATHER
Follow these procedures if the engine is difficult to start in
the usual starting method.
Preheating
1. Turn key switch (1) to the ACC position.
2. Open preheat switch cover (4). Turn preheat switch
(3) ON. Preheat indicator (2) comes ON, starting pre-
heating the engine intake air. At the same time, the
engine governor is set so that the fuel injection
amount is controlled to the most proper condition for
starting in cold weather.
3. Within 30 seconds after starting preheating, turn key
switch (1) ON and to the START position and hold it in
that position until the engine starts. Preheating will
automatically be complete and preheat indicator will
go OFF.
CAUTION: Preheating system doesn’t operate
unless key switch (1) is in the ACC position.
When preheat switch (5) is turned ON, preheating
is continuously performed for approx. 30 seconds
with key switch (1) in the ACC position. If key
switch (1) is turned to a position other than the
ACC position before preheating is complete, pre-
heating will be automatically completed, extin-
guishing preheat indicator (2). In case preheating
is performed for longer than 30 seconds, preheat
indicator goes OFF, automatically completing
preheating.
If preheating is required again, turn preheat
switch (3) OFF. Wait for more than 1 minute, then
turn preheat switch (3) ON again. The preheating
system will not be activated unless the 1 minute
interruption is performed to protect the engine.
M117-01-094
M18C-01-028
1
4
3
2
START
ON
ACC
OFF