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No.
Sym‐
Consumer
bol
X13
PDM cabin (A8)
X14
Battery with sen‐
sor
Checking safety fuses and the automatic cir‐
cuit breaker
Checking and replacing a safety fuse
Pull the fuse out of the module using the pli‐
#
ers and carry out a visual inspection.
If the fuse wire has melted, replace the blown
#
fuse with a spare fuse.
Switch on consumers and check that they
#
function correctly.
If the safety fuse blows again, have the electrical
system checked at a qualified specialist work‐
shop.
Checking and switching on an automatic cir‐
cuit breaker
If an automatic circuit breaker is tripped, pin
moves to OFF position 2.
Pull the automatic circuit breaker out of the
#
module.
Press pin
3
into ON position 1.
#
Insert the automatic circuit breaker again.
#
Switch on consumers and check that they
#
function correctly.
If the automatic circuit breaker is tripped again,
have the electrical system checked at a qualified
specialist workshop.
Information on the compressed-air system
Fuse
rating
* NOTE Damage to the compressed-air
150 A
system due to contaminated and humid
air
The compressed air does not pass through
the compressed-air dryer if the compressed-
air system is filled via the following connec‐
tions:
connection 28 on the electronic air pro‐
R
cessing unit
the connections on the brake value sen‐
R
sor beneath the maintenance flap
If the reservoir pressure of the external
compressed-air source is below 11 bar, it can‐
not be guaranteed that all the pressure cir‐
cuits will be filled.
Only fill pressure circuits with a max.
12.5 bar.
With supply pressure that is too high, or con‐
taminated and humid air from the external
compressed-air source, components of the
compressed-air system can become dam‐
aged.
Fill the compressed-air system using a
#
pressure between 11 bar and 12.5 bar.
Fill the compressed-air system with
#
clean and dry air.
System-dependent reservoir pressures can be
found in the "Technical data" section
(
page 392).
/
3
When the engine is not running, fill the
compressed-air system via filler connections
Breakdown assistance 363
1
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