Volvo 322001, Operator'S Manual

Page: 10 / 414

F F or distribution of AdBlue®/DEF (all other markets), ple e ase
contact your local Volvo dealer for more information.
See page 302 f f or information about filling AdBlue®/DEF.
Exhaust aftertreatment system
The engine features an exhaust aftertreatment system (EATS)
consisting of two mufflers. The first one contains a diesel
oxidation catalyst (DOC) and a diesel particulate filter (DPF) to
reduce emissions of particulate matter (PM). The second one
contains a selective catalytic reduction catalyst (SCR) to reduce
nitrogen oxide (NOx) emissions. AdBlue®/DEF is injected into the
exhausts in order to reduce NOx.
The DPF traps particles from the engine exhausts and, since it is
continuously loaded with these particles from the exhausts, it
needs to be regenerated in order to burn off the particles.
A passive regeneration process is constantly oxidizing the soot
particles stored in the DPF.
To achieve the defined emission values the EATS is electronically
controlled and monitored by the aftertreatment control module
(ACM).
For more information, see page
165.
E E l l ec c tr r i i cal l syste e m m
The machine is equipped with the Volvo CEA2+ (Common
Electronic Architecture 2+) electrical system, a computerized
monitoring and control system.
The different control units are communicating via bus systems.
Re e l l a a y y s an n d d fu u s s es s
The relays and fuses are grouped in the electrical distribution box
in the cab behind the driver seat under the cover.
Br r a a k k e syste e m m
The brake system is a dual-circuit system with two accumulators,
operated via the servo hydraulics.
In order to ensure the function of the brakes, even at loss of
pressure supply, the system is equipped with two accumulators.
Herewith, at least eight times activation of the brakes is possible
after the loss of servo pressure.
Se e r r v v ic c e br r a a k k es s
The service brakes are servo-hydraulically operated, self-
adjusting, wet multi-disc brakes in two separate brake circuits.
Di i g g g g i i n n g g br r a a k k e
The service brake pedal is also used as digging brake.
P P a a r r k k in n g g br r a a k k e
The parking brake is a negative action wet disc brake integrated
in the travel gearbox. It is spring applied and pressure released.
St t e e e e r r i i n n g g syste e m m
The machine is provided with a hydrostatic steering system.
As an optional equipment the machine can feature a Comfort
Drive Control (CDC) function for control lever steering.
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Pr r e e s s en n t t a a t t i i o o n n