In view
oÍ the
specialised
equipment required
for
adequately
servicing the
alternator,
the home
operator
is
strongly
advised to
take a
faulty
instrument
to
a
service
station Íor
attention
or
replacement.
11
:9
Printed circuit instrument
panel
This
panel
can be taken
out as a complete
assembly
with all its instruments
and bulbs.
First
disconnect the
batterv. then take out the lower
panels
of the facia
above the
pedal
mounting. Disconnect
the speedometer cable
and the trip control.
Take
out the central
butterÍly screw
and
ease
the
complete
panel
out towards
the front.
Djsconnect
the connector
blocks
on the
left
and right,
and
also
the earthing
cable.
The
assembly may
be dismantled
after
removing
the
rheostat
knob and the
clock setting
button and
releasing
the 1 2
screws around the
periphery
oÍ the
panel.
Reassembly is
a
reversal
of the
above, being careful
to
replace
corÍectly the
speedometer trip
control. lt is
advisable to
check the operation
of this before refitting
the
panel.
The various
electric
bulbs are held in
plastic
bayonet
Íittings
and if
required
these may
be
removed
and
replaced
after
removing
the
lower
panels
of
the facia
above the
pedal
mounting,
without
disturbing the main
panel.
11:10 Fault
diagnosis
(a)
Battery
discharged
1 Terminals loose
or dirty
2 Lighting circuit shorted
3
Generator not
charging
4 Regulator
or
cut-out
units not
operating correctly
5 Battery internally
defective
(b)
Insufficient
chaíging
current
1 Loose or corroded
battery terminals
2 Generator driving belt
slipping
(c)
Battery will not
hold
a charge
1 Low electrolvte
level
2
Battery
plates
sulphated
3
Electrolyte leakage
from
cracked casing
or top sealing
comoound
4 Plate separators
ineffectlve
(d)
Battery
overcharged
1 Voltage regulator
not controlling
(e)
Generator
output
low
or
nil
1 Belt broken
or
slipping
2
Regulator unit not controlling correctly
3
Worn
bearings,
loose
polepieces
4
Commutator worn, burnt or shorted
5 Armature shaft bent
or worn
6
Insulation
proud
between
commutator
segments
7
Brushes sticking, springs
weak or broken
8
Field coil wires
shorted, broken
or burned
(f
)
Starter
motor lacks
power
or
will not
operate
1 Pinion
sticking in
mesh
with
flywheel
2 Battery
discharged,
loose
cable connections
3 Starter
swrtch Íaulty
4 Brushes
worn or
sticking, leads
detached or
shorting
5 Commutator
dirtv or worn
6
Starter
shaÍt
bent
7 Engine
abnormally stiÍÍ
8 Armature or
field
coils faultv
(g)
Starter
motor runs
but
does
not
turn engine
1 Pinion sticking
on
screwed
sleeve
2
Broken teeth
on
pinion
or
flywheel
(h)
Noisy starter
pinion
when
engine is running
1
Restraining spring weak
or broken
(j)
starter
motor
rough
or
noisy
1 Mounting bolts
loose
2 Damaged
pinion
or
flywheel
teeth
3
Main
pinion
spring
broken
(k)
Lamps inoperative
or erratic
1 Battery low, bulbs
burned out
2 Faulty
earthing of
lamps
or
battery
3
Lighting switch faulty, loose
or broken wiring con-
nections
(l)
Wiper motor
sluggish,
taking high
current
1 Faulty armature
2 Bearings
out of alignment
3
Commutator
dirtv or short circuited
P404
103
To Next Page
Loading...
Need help?
General
