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REPAI R I NSTRUCTIONS
SPECIAL INSTRUCTIONS FOR
WORK
ON ALTERNATOR
EQUIPMENT
l.
Whe~
replacing or fitting the battery, make sure
~hat
the new battery
is
connected
with
the correet
polarity.
2.
Never run the alternator
with
the main circuit
broken. The battery and/or alternator and regu-
lator leads must
never be disconnected while the
engine
is
running.
3. No attempt should be made to polarize the alter-
nator since this is not
necessary.
4. When charging the battery while installed
in
the vehide, the
nega,
t ive battery
lead
should be
disconnected
.
5. A rapid charger should not be used as a help in
starting.
6. When
using
an extra battery as an aid
in
starting,
always c.onneot
it in
paralIeI.
7.
When
carrying out any electric
welding
on
the
vehide
disconnect
the neg.ative battery lead
as
weil as
aH
the altemator leods.
The
welding unit
shouJ
ld
nlways
be
conne'Gted
as ne·ar as possible
to where the welding is to be canried out.
REMOVING THE ALTERNATOR
l. Disconneet
~he
negative lead to the battery.
2. Disconnect
~he
leads to the alternat'Or.
3. Remove the bolt for the tensioning iron.
4. Remove the bolt holding the alternator to the
engine block.
5. Remove the fan belt and lift the alternator for-
wards.
Fig. 3·5. Alternator fitted
VOLVO
104469
DISMANTLING THE ALTERNATOR
l. Release
,
t he two
screws
holding th
e
brush hold
er
and remove the isolation
plate.
Pull out the brush
holder.
2. Remove the
nut
and
washer. Lift
off the pulley,
fan, key
and spacer
washer.
3.
Remove
the
nuts
and
washers on
terminal
61
and
~he corresponding
on the
other srde
of
the
isolation
diode.
Lift
off the
isolation
diode
holder,
see
Fig. 3-6.
4.
Mark
the drive end shield, stator and slip ring
end shield to avoid confusion when assembling
.
Remove the four attaching screws.
5.
Remove the stator and slip ring end shield with
the help of two screwdrivers, which are inserted
in two of the sockets between the stator and drive
end shield, see Fig. 3-7.
N.B.
The
screwd rive rs
may
not
be
inserted
deeper
tha
n
2
mm
(just over
1/16"),
otherwise
t he stator
may
be da
maged.
6.
Release the
three screws
holding the
support plate
of the drive
end
bearing. Release the bearing
by knocking the end of the shart against a piece
of wood, see Fig. 3-8.
7. Remove the nuts and washers for the diode-
holders.
8. Remove the stator and diode holders for the
slip ring end shield.
Fig·
. 3-6.
Removing the insulation diodes
VOLVO
104470
3:3
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