Datsun 1000 Workshop Manual page 160

8 Mount
a
thermometer
on
the
cover
of the
regulator
to
re
ster
the ambient
temperature
a
cylindrical
type
thermometer may be held in
place with
a
lump
of
putty or
similar
substance
9 Start the
engine
and allow it to reach
operating
temperature
10 Remove the
jumper
I
d
bridging
the ammeter
resistor
and increase the
engine speed
to
approximately
2500
rpm
the
ammeter reading should
be less than 5 amps
after
a
few
minutes operation
lP
With
the engine operating
at 2500 rpm check
the
voltage reading
on
the voltmeter and
note
the ambient
temperature reading
on
the thermometer
compare
the
readings
with
Specifications
12
If the
voltage reading
is
not to specifications
allow the
engine
to
idle and
reconnect the
jumper
lead
bridge to
protect
the
ammeter then
stop
the
engine
13 Remove the
negative battery termjnal
14
Remove
the
regulator
cover
Elec rical
System
14
15 Reconnect the
negative battery
terminal
16 Start the
engine again
and
remove
the
jumper
lead
bridge
17
Loosen the
adjusting
screw
lock
nut
and
turn
the
adjusting
screw
in
to
increase
t
e
reading
arid
out to
decrease the
reading Tighten the locknut
after each
adjustment
NOTE
The
adjustment must
be made within
one
minute
after
the removal
of
the
regulator
cover as
the
change
in
temperature
occuring
in the unit will
alter
the voltage
setting
and the
procedure
will have
to
be
repeated after
the
unit
has
normalised with the
cover
installed
18
After
the
adjustment
is
completed
stop
the
engine
and
remove
the
negative battery term
nal disconnect
the
test
instruments and
reconnect
the alternator A
terminal and wiring
19 Reconnect
the negative battery
terminal
DESCRIPTION
4 STARTER MOTOR
The
starter motor is
a
12 volt series
wound four
pole
four
brush
or
two
brush unit
The starter
motor
is equipped wi
a
solenoid actuated
pre
engaging
starter drive
and
over
running
clutch assembly
The solenoid
is
attached
to
the start
r
frame
the solenoid
plunger
is
connected
to
the
over
running
clutch and driv
pinion
assembly through
a
link
lever
and pivot pin
arrangement
When tp
e
solenoid windings
are
energised
the
plunger
acting
on
the lever and
pivot
engages
the drive
pinion
with
the
flywheel
ring
gear
and
at the
same
time
closes the
switch
supplying power
from
the
positive
lead of the
battery
to
the
starter motor
field coils
to
operate
the
motor
As he
engine
fires the
over
runrung
clutch of the drive
pi 1i o n
assembly
prevents
high speed
rotation
of
and
possible damage
to
the
starter
armature
if
the
solenoid
wjndings are not immediately
de energised by releasing the
switch key
The
startersolenoid switch windings
are
energised by
t
e
key operated
combination
ignition
and starter
switch
TO
TEST ON
THE VEHICLE
Should
the starter fail
to
operate
when the
switch is
moved
to
the
start
posipon
che k the
following points
i Check the
battery
condition and
slate
of charge
refer
to batt
ry
section
of this ITlanuaL
YOKE WINDOWS
DR V END
B RACKET
Y KE
18
l E VER
J
i i
J
hf
SO NOID
J
QCDVER
ZJ
BRUSH TERMINALS
SPLIT PIN
SOLENOID SCREWS
0
c Y
PIVOT PIN
WASHERS
CENTRE BRACKET
RETAINER
CIRClIP
i
ARM TURE
BRUSH PLATE
b
I P
4JI
t
i
I
COLLAR
0
t
n
ro
Y
THRDUGH BOLTS
BRUSHES
L t
a
BRUSH S
HEW
Exploded
View of Hitac i Starter Motor
161