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Supplementary
heater
1
Fuse in
battery
box
66
4.10 Electrical
system
4.10.1
Three-phase alternator
Due to
major
differences in
the
opcm
t1nq
c haracte ristics of the three
-phaso alt orna
tor and the DC generator
, the follow1 nq
points
have
to be observed
:
1.
Thet
hree-p hasealternat ormu
st noVPr
be discon nected from
the batl<'rtP~,
wh ile the vehicle is
in
operat ion /\s
lon
g
as the engine is runnin
g,
no1tt10r
an
alternator
cable, nor
a ballo ry lrn
minal may be
loosened,
removed or
wrongly con nected
.
2.
Tow-sta
rt
the vehicle
only
with
tho l>al
teries connected.
4.10.2 Fuses
All points
of
co
nnection
must be 1
n
pos1l1vt1
contact
with each
other.
For
return
of
thl'
cur
rent, make sure all power
consuming
units are
well
grounded.
Damaged cab les
must
be
insulated by
means
of
insulating tape
.
Faulty fuses
must be replaced instead of
repaired.
An
additiona
l
set of
fuses
and
bulb
s should
always be carr ied in the vehicle for emer
genc
ies.
3
Only after
pos itive and
negat
ive
cab le
tor
rninals have
been
removed from the
tc1rninal
posts may the batteries be
charged by means
of
a rapid
charger.
II
I
or
welding jobs
with
the
electric wel-
cf<'
r
, clrrectlyco
nnect thegrou nd
termi-
nal lo the part
to be we lded. Detach
posrtrvo and negat
ive battery
terminal
cl:unps
5
f1l·pw1s
and inspec
tions on the alter-
nutor
are
to be performed
by the
skilloct staff members
of a MERCE-
m.S
BCNZ
service
station
only.
Bo sure lo remove
the cause
of a burnt
out
fuso prior to rep lacing
the fuse.
Prior to
performi
ng work on the elec
trical
system,
tho negative(-)
battery term
inals
must
be disco
nnected from the battery
posts.
Objects
liable to conduct
elect
ri-
city (tools)
must
not be
put
on top
of
the
batteries
because they
might
ca use
short
s.
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