O P E R A T I N G I N S T R U C T I O N S
58
Emergency brake
Warning!
Any unprofessional intervention
into the brake system is not allowed
and all repairs and interventions
must be entrusted to authorized
service stations.
Warning!
The use of emergency brake always
means the endangering of the ve-
hicle operation because the emer-
gency braking effect is always much
lower than that of the service brake.
The brake system has been designed
so that when one circuit is defective, the
emergency braking effect is secured.
A loss of operating braking effect
may be caused by:
n
Malfunction in the pneumatic part of
the service brake due to air loss. The
defect is indicated by the decreased pres-
sure in one of two service brake circuits.
n
Defect in the pneumatic part ahead
of the four-way relief valve.
n
Defect in one of four pneumatic
circuits behind the four-way relief valve.
n
Defect in the electrical part of the
brake system - in the ABS system.
n
Failure of the trailer brake system.
Conclusion
n
Always before the set out for the
drive and when driving, do not forget
to check a good function of the brake
system so that you are watching air
gauges and warning lamps of the brake
system.
n
Check a good function of bulbs of the
brake system indicator lights by turning the
ignition key from
"ACC"
to
"ON"
position
when the indicator lights must come on.
n
After full operating air pressure in the
system is reached the warning lamps
must go out.
n
After the indicator lights have gone
out, you may move off.
Brake system instruments
The vehicle user is obliged to carry out
the continuous inspections of the bra-
ke system to check its condition and
function. When some defect or suspi-
cion of the defect has been found out,
have the diagnostics and possible
repair performed by the authorized
service station.
Parking brake
n
The parking brake is of spring-loa-
ded type and acts on wheels of the rear
axle.
n
The energy needful to brake up the
vehicle is accumulated in the spring of
combined brake cylinder being air com-
pressed. Air pressure will press the
spiral spring and this way the parking
brake is released.
n
The parking brake is controlled by
means of the manual brake valve lever,
which is located behind the gearshift
lever.
Position of the parking brake le-
ver
n
Parking position:
FN0690a
driving
position
parking
position
check
position
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