7-14
(color-red)
Intermittent horn
If the indicator of
3-d or 4-th circuit is blinking
on the screen, there is a fault
occured in the 3-d or 4-th cir-
cuit of the brake system, re-
spectively.
Vehicle driving is prohibited till fault correction.
• Stop the vehicle taking into account the traffic situa-
tion;
• engage the parking brake;
• inspect for compressed air leakage in pneumatic drive
caused by leakage of pipelines’ and elastic hoses’ connec-
tions. Check the brake system devices for operability;
• eliminate trouble;
• after faults correction, with vehicle being stationary,
let engine working to restore the compressed air reserve;
• continue driving only after the control lamps go out
(at a pressure of 5,0 to 5,5 kgf/cm
2
) and the pressure in
the circuits of the brake system reaches the norm
(9,0 to 10,0 kgf/cm
2
).
If fault persists, pilot lamps do not die out, be sure to
address the service center.
(color-red)
(color-red)
Intermittent horn
Pressure drop
in the 1-st circuit
of the brake system.
Vehicle movement is limited
Adjust the pressure to the normal level.
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