Installation Instructions
81700'82100·82400
WSM,11770
9
ELECTRICAL
SYSTEM
(2)
Glow
Plug
(c) Time
(Sec.)
(5)
Super Glow Plug
(6) Conventional Quick-
heating type Glow Plug
(7) Glow Plug Current
(a)
Glow
Plug Temperature
(0C)
(b) Current (A)
(1)
Sheath Tube
(2)
Insulation Powder
(3) Heater also functioning
as
a
Resistor
(4) Heater
This
plug
is
a two-material type
QGS
(Quick Glow
System)
for
quick temperature rise, and
has
self-
controlling function
as
well
as
excellent durability.
The
heater
(4)
connected in series
to
the
heater (3),
which also functions
as
the resistor,
is
incorporated in
the
sheath tube
(1)
of
the
super
glow
pi
ug.
The
resistance
of
this
heater
(3) cum resistor
is
small
when
the
temperature
is
low,
while
the
resistance becomes large
when
the
temperature
rises.
Therefore, because sufficient current
is
flown
to
the
heater
(4)
during
the
initial
period
of
energization,
the
temperature
rises
quickly and
the
resistance grows
with
the
rise
in
the
temperature
of
the
resistor,
the
flowing
current
is
reduced
to
prevent
the
heater
(4)
from being heated.
The
ignition
point
is
in
the
area
of
2
to
3 mm
(0.079
to
0.118 in.) from the
tip
of
the
plug in order
to
reduce
its
projection
into
the
combustion
chamber.
5
©
..
10
20
30
40
50
C111F023
1
1200
1
1000
a
BOO
®
C140F060
(3)
Safety Switch
Released
A
•
Depressed
8 A
t •
A: From
Main
Switch
B:
To
Starter
8177F908
The
safety switch prevents current from
flowing
to
the
starter
when
the
safety
switches
are
not
depressed. This
is
to
ensure safe starting.
The safety switches are
located
three
(Clutch
pedal,
PTO
gear shift lever and main gear
shift
lever
for
manual transmission model
or
Hi-Lo gear
shift
lever
for
hydrostatic transmission model)
different
position.
9-M7