Toyota 3R-B 1969, Repair Manual

Page: 147 / 193

8^8 C H A R G I N G S Y S T E M - Al ternator & Regulator. Alternator
7. Check the resistance between the
alternator " F " and " E " terminals
with a circuit tester.
T h e specified resistance is ap­
proximately 6 ~ 9 ohms. If this
resistance is le s s than 6 ohms,
the ro to r coil o r w ir e s a re shorted.
T h e resistance is excessively
higher than that specified above,
the ro to r coil o r brushes, and the
slip rings have a high resistance
o r a r e opened.
B e tw een nF M & " E "
8 . P e r f o r m the load test in the fo llow ­
ing manner.
Make the same connection as shown
in figure 8-4 , and start the en­
gine, and run it at approximately
1,100 rpm with all lights and a c ­
c e s s o r i e s turned on.
T h e amm eter should indicate ap­
proximately 40 a m pe res on the
R S , R T 4 3 L , R T 5 2 L and R K
171B s e r i e s , and approximately
25 a m p e re s on the R K s e r ie s
except on R K 1 7 1 B s e r ie s with
the voltage of 13.8 ~ 14.8 volts.
If the cu rren t flow is extremely
l o w e r than the specified a m p e ra ge,
the re ctifie r o r stator coil is
shorted o r opened.
If the battery is in full charged
state and the am pe rage reading is
le s s than the specified a m p e r a g e .
It is recom mended to d ischarge the
battery to p erfo rm the load test.
Disconnect the high tension lead
from the ignition coil, and turn the
starter f o r about 5 ~ 10 seconds
to d is c h a rg e the battery.
A L T E R N A T O R
Removal
1. Disconnect the battery to ground
cable from the b attery.
2. R em ov e the engine under c o v e r
fo r RK171 se r i e s .
3. Disconnect the w irings from the
alternator.
4. R em ov e the fan belt adjusting bar
bolt, and then re m ove the fan belt.
5. R em ove the alternator retaining
bolt, and rem ove the alternator
from the alternator bracket.
D isassem bly
1. R em ov e the three through bolts.
2. Insert a s c r e w d r i v e r into the
notches in the d rive end fram e,
and pry with the s c r e w d r iv e r to
separate the d rive end frame from
the stator.
If n e c e s s a r y , tap lightly on the
d riv e end fram e with a mallet to­
w a rd s the pulley, and then rem ove
the d riv e end fram e with the ro tor.
F ig . 8-8 Removing D r iv e V2195
End F r a m e
3. R e m o v e the pulley, fan, space
collar and the k e y , then rem o ve
the ro to r from the d riv e end fram e
using a p r e s s .
4. R em ove the r e a r bearing from the