Bosch SL 2450 C Manual Del Usuario página 16

16
8.5 Testing the time switch
8.5
Disconnect the mains plug
Connect the battery clips
to test circuit A as shown
in the adjacent circuit
diagram
Connect the charger to the
mains via the isolating
transformer
Set the selector switch to
" 12 V"
Reduce the resistance of
the test resistor R
L
until I = 10A
L
Set the time switch to
„Rapid 30 min"
Current-
increases when the time
no
switch starts
?
yes
Time switch ticking ?
no
yes
Set the selector switch to 0
Disconnect the mains plug
Disconnect the battery
Time
switch switches off
after approx.
no
30 minutes?
yes
8.6
English
Test circuit A
I
L
+ A=
+
R
V=
L
B
-
Set the selector switch to 0
Disconnect the mains plug
Disconnect the battery
Remove the metal support
plate with selector switch
and time switch
(3 sheet-metal tabs)
Clearly identify and
disconnect the connection
leads to the time switch
Exchange the time switch
Fit the metal support plate
with selector switch and
time switch
(3 sheet-metal tabs)
Connect the leads as
marked
9
8.6 Testing the measuring instrument and
shunt
8.6
Disconnect the mains plug
Connect the battery clips
U
B to test circuit A as shown
in the adjacent circuit
diagram
Set the test resistor R
L
max. resistance
Connect the charger to the
mains via the isolating
transformer
Set the selector switch to
" 12 V"
Reduce the resistance of
the test resistor R
L
until I = 30 A
L
Incorpo-
rated measuring
instrument indicates
30 A ?
arithm
no
Disconnect one pole of the
measuring instrument
Voltage
on the measuring lead
approx. 18mV
?
no
Set the selector switch to 0
Disconnect the mains plug
Disconnect the battery
Clearly identify and
disconnect the shunt leads
Exchange the shunt
Connect the shunt leads
as marked
Test circuit A
I
L
+
A=
+
R
L
B
to
-
yes
Set the selector switch to 0
Disconnect the mains plug
Disconnect the battery
yes
Set the selector switch to 0
Disconnect the mains plug
Disconnect the battery
Clearly identify and
disconnect the measuring
leads
Exchange the measuring
instrument (pull the spring
clamp upwards)
Connect the measuring
leads as marked
9
U
B
V=