II.
Electric system
The
electric system
of
the
R
series
diesel
engine
has
two
tYP8S:12Vand
24V,all
are
single
wire
system
with
negative pole grounded, can be chosen by users.shown in
Fig. IS
Fig.
18
layout
of
electric system
1.
battery 2. starting motor 3. starting switch 4
r
ammeter S. key switch 6. pressure gauge 7. temperature gauge 8.
voltage 4egulator 9. silicon rectified generator
The common and for tractor using diesel engines adopts
12V
electric
system;for
en-
gineering and truck using diesel engines adopts 24V electric
system,
can use more
powerful24V
starting motor
to
improve starting capacity. The rated voltage
of
the
motor and other electrical equipment
must
meet the voltage pequirrement
of
the
e-
lectric system. In order
to
improve the diesel engine' 5 coaly starting capacity, the
coolly starting equipment installed at the air inlet pipe can
be
used by user's need.
11. 1 Battery
The battery
for
start is a power device
of
the
diesel engine,its performance influence
the start
of
the diesel engine directly,suitalbe capacity battery should be chosen ac-
cording
to
the starting
motor's
specific property. The battery should be installed near
the starting motor so
as
to
shortem the length
of
the cable between the battery and
the starting motor
to
avoid the voltage drop too hard when the engine starting,the
section area 36mm
2
low
voltage connecting cable should be adopted.
When the starting current is
highest,for
12V and 24V starting motof
t
the
VQ
Ita
ge
drop
should be less than O.5V and
tV
respectively.
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