1987 SUZUKI GRAND VITARA set clock

The alternator features a solid state regulator
that is mounted inside the alternator. All regula-
tor components are enclosed into a solid mold,
and this unit along with the brush holder assemb-
ly is attached to the slip ring end frame. The
regulator voltage setting cannot be adjusted.
The alternator rotor bearings contain enough
grease to eliminate the need for periodic lubri-
cation. Two brushes carry current through the
two slip rings to the field coil mounted on the
rotor, and under normal conditions will provide
long period of attention-free service.
The stator windings are assembled on the inside
of a laminated core that forms part of the
alternator frame. A rectifier bridge connected
to the stator windings contains six diodes,
and electrically changes the stator A.C. voltages
to a D.C. voltage which appears at the generator
output terminal.
The neutral diodes serve to convert the voltage
fluctuation at the neutral point to direct current
for increasing the alternator output.
A condenser mounted in the end frame protects
the diodes from high voltages and suppresses
radio noise.
DATA AND SPECIFICATION
Nominal operating
voltaga
Max. alternator output
12 volts
45A
No-load alternator speed
IDirection of rotationClockwise as view-
ed from oullev side
Maximum permissible
alternator speed
Working temperature
range
Rectification
15,000 rpm (r/min)
-3o- 90°C
(-22 - 194” F)
Full wave
rectification
Noisy Alternator
Noise from the alternator may be caused by a
loose drive pulley, loose mounting bolts, worn
or dirty bearings, defective diode, or defective
stator.
DIAGNOSIS
A charging circuit wiring diagram for alternator
connection is shown above. To avoid damage,
always follow these precautions:
1) Do not mistake the polarities of IG terminal
and L terminal.
2) Do not create short circuit between IG and
L terminals. Always connect these terminals
through a lamp.
3) Do not connect any load between L and E.
Trouble in the charging system will show up
as one or more of the following conditions:
a.Faulty indicator lamp operation.
b. An undercharged battery as evidenced by
slow cranking or indicator clear with red
dot.
c. An overcharged battery as evidenced by
excessive spewing of electrolyte from the
vents.
10-3

3) Set booster to special tool (A) as shown.
NOTE:
When setting, check to be sure that booster
vacuum check valve is not in faulty contact with
base of special tool.
Tighten 2 nuts on upper part of special tool
evenly to specified torque.
Special tool nutsN.mkg-mlb-ft
tightening torque3-50.3 - 0.52.2 - 3.6
NOTE:
Be careful not to over-tighten nuts, or booster
body will be deformed.
Tighten right and left nuts equally.3 - 5 N.m
(A): Booster overhaul tool set(09950-88210)
Fig. 19-68
4) Turn special tool bolt clockwise until No. 1
body projecting part and No. 2 body depress-
ed part fit each other.
Once they are matched, make match marking
on No. 1 and No. 2 bodies to facilitate their
installation.
No. 1 body projecting part
No. 1 body projecting part
No. 2 body depressed part
Make match markingI
Fig. 19-70
5) Remove booster from special tool and sepa-
rate No. 1 body and No. 2 body. Remove
piston return spring.
NOTE:
When separating two bodies, hold both bodies
carefully to prevent either body from jumping
off by spring force.
6) From booster No. 2 body, remove boot, air
cleaner elements and air cleaner separator in
this order.
7) Using camshaft pulley holder (special tool
09917-68210), turn booster piston counter-
clockwise and remove piston.
Fig. 19-71
8) While compressing air valve spring (by moving
rod up and down as shown), remove valve
stopper key. Then remove booster air valve
assembly from booster piston.
NOTE:
Booster air valve assembly can’t be disassembled.
Fig. 19-69
19-31

2,
Fig. 19-85
1. Booster No. 2 body2. Diaphragm
3. Pressure plate
Check all around boosterNo. 2 body to make surethat diaphragm is seatedsecurely in its outergroove as shown in “A”.
7) Install air cleaner separator and then 2 ele-
ments to rod of air valve assembly.
8) Install body boot to booster No. 2 body.
Bath ends of boot must be fitted securely
as shown.
Fig. 19-86
1.No. 2 body
2.Boot
3.Rod
4.Booster piston
9) Place No. 1 body on special tool (A). Then
install piston return spring, being careful
for its installing direction.1. Piston return
Fig.
2. Booster No. 1
:Booster overhaultool set
(09950-88210)
1
I
19-87
10) Place booster No. 2 body on piston return
spring. Then check to be sure that spring is
in piston spring guide.
Fig.. 19-88
1. No. 2 body
2. Return spring
3. Piston
\Put spring into pistonspring guide.
11) Put No. 1 and No. 2 bodies together by
aligning markings made before disassembly.
Holding No. 2 body with upper plate (special
tool) as shown, torque 2 nuts equally to
specification.
Special tool nutsN.mkg-mlb-ft
tightening torque3-50.3 - 0.52.2 - 3.6
NOTE:
When holding No. 2 body, use care so that
diaphragm is not caught by projections at 16
locations around No. 1 body.
ml
Tighten right and left nuts equally.
A 3-5N.m
markings.Special tool(Booster overhaul tool set)(08850-88210)
Fig. 19-89
12) Turn special tool bolt counterclockwise until
No. 1 body projecting part comes to mid-
position of No. 2 body depressed parts as
shown.
No. 1 body
No. 1 body projecting part
No. 2 bodydepressedpart
Fig. 19-90
19-36