Service Brakes - Volvo 9700 US/CAN 2016 Driver's Handbook Manual

Service brakes

The Volvo 9700 US/CAN bus is
equipped with an EBS brake system
(Electronically-controlled Braking System).
This system monitors and controls the brake
operation (also, refer to this section on this
manual: "EBS (Electronically-controlled
Braking System)", page 67).
If the service brakes are used without care
when driving down steep and long inclines,
they will heat up very quickly to extreme
temperatures. The low speed that is generally
the rule in such cases means that the brakes
are not cooled as efficiently as when driving
on level roads. When driving downhill, in
the first instance use the retarder brake, and
only supplement this with the main brakes as
necessary.
For additional information about the retarder,
see the following section on this manual:
"Retarder (if installed)", page 120.
If you have to use the service brakes while
driving downhill, DO NOT pump the service
brake, as this will only use up compressed
air, what cause trigger the blocking valve
activating the parking brake unexpectedly,
raising the risk of a rollover (for information
about the valve block, see the next section in
this manual: "Blocking valve", page 64).
Instruments and controls 65
Dark zone — only retarder.
Light zone — retarder and foot brake.
Symbol shown in the driver display.
Icon lit in the dashboard.
T0009004
T0009682
T3008834