Page 425 of 1701
CHARGINGSYSTEM
Wiring Diagram -CHARGE -(Cont'd)
DIESEL ENGINE MODELS
EL-CHARGE-02
•
LHO
models
RHO models
(1):
@:
Refer
to
EL-POWER.
FUSE
BLOCK
(JIB)
Refertolast page
(Foldout page).
aID
I
.,
B
!
~
10A
[]]
I
N~ll
Y
IJ
COMBlNA TION
METER
(CHARGE WARNING
~ LAMP)
I ~
JOINT
Y/R CONNECTOR-1~
f-
Y/R~--~ Y/R
1
Y/R Y/R
,c:r
l
eMB) ~eMB)
IQl::!J
I~I
Y/R Y/R
1~lm IclJl~
'T"
eE202)
'T"~
Y/R Y/R
t~;..- __
I
I
Y/R
1m,
~~
~GY
Refer
to
EL-POWER.
RIB
U+JI
AL TERNATOR ~~~
~@QJ)
~ GY
---:l,7.5A
ljJOO
RIB
I
O~
~ I
RIB RIB
,c!J, ~
,ell,~
'T"~ 'T"~
RIB RIB
<;>
I
J~
r-----------------,
: ~ ~ ,R..~ ~~: ~ ~
CillIillIillTII ~
I ~
\b:.@
GY
lSJ
I
mz:l]:l
B~ BR
I I
L ~
HEL197
EL-53
Page 426 of 1701

CHARGINGSYSTEM
Trouble Diagnoses
Before conducting analternator test,make surethatthebattery isfully charged. A3D-volt voltmeter and
suitable testprobes arenecessary forthe test. Thealternator canbechecked easilybyreferring tothe
Inspection Table.
Before starting, inspectthefusible link.
WITH IeREGULATOR
Burned-out
bulb.
Replace and
proceed to
"@".
Light "ON"
Light "OFF"
Connect
connector (S,
L) and
ground F
terminal
Engine
speed: 1,500 rpm
(Measure B
terminal
voltage)
Make sure
connector (S,L)is
connected
correctly.
(HITACHI
make)
'See
4)for grounding Fterminal.
(MITSUBISHI
make)
Check or
replace drive
belt.
Light "ON"
Light "OFF"
Disconnect
connector (S,
L) and
ground L
lead wire.
Engine
speed:
1,500 rpm
Lighting
switch "ON"
With
alternator sideLterminal
grounded. internalshortoccurs
when
+
diode isshort-circuited.
Light "ON
Dim
light
Light flickers
Bright light
Light
"ON"
Light
"OFF"
Ignition
switch "ON"
@
1) Use fully charged battery.
2) light: Charge warning light
ACG :Alternator partsexcept I'Cregulator
IC-RG :IC regulator
OK :IC-alternator isingood condition.
3) When reaching "Damaged ACG",remove
alternator fromvehicle anddisassembly, inspect
and correct orreplace faultyparts.
4) *Method ofgrounding Fterminal (HITACHI make
only)
Gasoline enginemodel
Contact tipofwire withbrush andattach
wire toalternator body.
~~~
;;z..'~~.~
~~~/j
S$.~~'
s<(r~, -
Brush liftwire
;;.. ~ Q<:::z"d,l'T7.
~ .. ~ ~-)o,IJ!"-f/
- -~~ C);
0~~/
'~-/i ~-,~
-~j~n
- <::::; -~ \•
'" 1A/-'
SEL030Z
5) Terminals
"S","l","B"
and
"E"
aremarked onrear cover ofalternator.
EL-54
Page 427 of 1701
•
SEL156SB SEL252SC
1iJ:
N.m(kg-m, in-Ib)
~ :N.m (kg-m, ft-lb)
Diode
assembly
IC voltage
regulator assembly
Stator
::;1iI3.1 •3.9 (0.32 -0.40 278
• '.-34.7)
I C regulator
1i1
3.7•5.0
assembly ,(0.38.0.51, 33.0.44.3)
R." _'"
@J' .
Bearing
retainer
IiJ
3.1•3.9 (0.32 •0.40 278 Rotor
, .• 34.7)
Retainer
Front bearing
Front cover
iii
3.9 •5.4
(0.40 •055 F
34.7 •47.7)' rontbearing
F'om
'O~I
(5.0 •6.5,
36 •47)
PUlley
assembly
~mb'~
~~~
f
PJ
83.108
(8.5 •11.0,
61 •80)
~: N.m(kg-m, in-Ib)
~_ ... N.m (kg-m, ft-Ib)
:====
~C~H~A~R~G=I~N=G~S~Y~S!:!T!E~M!...----------
SE~C:-. =23=-:.-1-----
Construction
A5T06891
EL-55
Page 428 of 1701
CHARGINGSYSTE
Constr
t"
M
uc Ion (Cont'd)
~.N.m(k
g-m,
in-Ib)
~,N.m (kg-m, ft-Ib)
1jJ:
N.m(k
~. N g-m,in-Ib)
~_.. ..m (kg-m, ft-Ib)
~
7.8.10.8
(0.80 •1.10 69
• .4-95.5)
~
@
@~
@,
o
~
3.14.39 (0
.
.320 •0.398 •27.8 •34.5)
~ 3.14.3.9
(0.320 -0.398
L
O .~8-34~
lode assembly
IC regul atorassembly
•
l
Condenser
Stator
Brush
Slip
ring
RO'O'1
~ \~
A83.108
(8.5 •11 61
,
.80)
~3.14
-3.9 (03.20 -0.398
•27.8 -34.5)
Retainer \
Front bearing
Front cover
~~
~~ ~#Y
SEC. 231
A2T82491A
[ij3.9-5.4
(0.40 -0.55 34
, .7.47.7~
SEC.
231
LR170-746E
Pulley assembly
Front cover
Front bearing
Bearing retainer
@
Rotor
@
R
ear
bearing
(J)
Stator
MEL782DB
@
Ie
voltage regI
@
Diode assemb~ atorassembly
@)
Rear cover
EL-56
Page 429 of 1701
~:N.m (kg-m, ft-Ib)
SEL910T
SEL032Z
SEL033Z CHARGING
SYSTEM
Removal andInstallation
Disassembly
REAR COVER REMOVAL
C~UTION:
Rear cover maybehard toremove because aring isused to
lock outer raceofrear bearing. Tofacilitate removalofrear
cover, heatjustbearing boxsection witha200W soldering iron.
Do not use aheat gun, asitcan damage diodeassembly.
REAR BEARING
CAUTION:
• Do not reuse rearbearing afterremoval. Replacewitha
new one.
• Donot lubricate rearbearing outerrace.
Rotor Check
1. Resistance test
Resistance: RefertoSOS (EL-61).
• Not within thespecified values...Replace rotor.
2. Insulator test
• Continuity exists...Replace rotor.
3. Check slipring forwear.
Slip ring minimum outerdiameter:
Refer toSOS (EL-61).
• Not within thespecified values...Replace rotor.
EL-57
•
Page 430 of 1701
Type1
Type 2
Brush wear
limit line
SEL034Z
Type 1 CHARGING
SYSTEM
Brush Check
1. Check smooth movement ofbrush.
• Not smooth ...Check brushholder andclean.
2. Check brushforwear.
• Replace brushifit is worn down tothe limit line.
Stator Check
1. Continuity test
• Nocontinuity ...Replace stator.
2. Ground test
• Continuity exists...Replace stator.
Type 2
II
I
------_~
SEL037Z
EL-58
Page 431 of 1701
CHARGINGSYSTEM
Diode Check
MAIN DIODES
• Use anohmmeter tocheck condition ofdiodes asindicated inchart below.
• Ifany ofthe test results isnot satisfactory, replacediodeassembly.
Ohmmeter probes
Judgement
Positive
EB
Negative
e
Positive diodeplate Diodeterminals
Diodeconducts inonly one
Diodes check(Positive side)
direction.
Diode terminals Positivediodeplate
Negative diodeplate Diodeterminals
Diodeconducts inonly one
Diodes check(Negative side)
direction.
Diode terminals Negative
diodeplate
Type 1 Type
4
SEL039Z•
Sub-diodes
Positive
diode plate
Type
6 \Negative diodeplate
\ Diode
terminals
Type
5
Negative diodeplate
Negative diode
plate
(Stator side)
Type
3
Type
2
EL-59
Page 432 of 1701
Amountofprotrusion:
Fix ring atthe position
OfR~~wnlmum protrusion.
,,,,'
.
~~
,
~...
\
-
,'.:'
;
.',
,
"
Eccentric '
<-'
>/
groovy
Rearbearing
SEL044Z
SEL048Z
SEl049Z CHARGING
SYSTEM
Assembly RING FITTING INREAR BEARING
• Fix ring intogroove inrear bearing sothat itis as close to
the adjacent areaaspossible.
CAUTION:
Do not reuse rearbearing afterremoval.
REAR COVER INSTALLATION
(1) Fitbrush assembly, diodeassembly, regulatorassembly
and stator.
(2) Push brushes upwith fingers andinstall themtorotor.
Take carenottodamage slipring sliding surface.
EL-60