PREVOST H3-45 2023 Operator's Manual page 98

4-42 Controls and Instruments
FIGURE 28: ENGINE BRAKE CONTROL STALK
ON/OFF momentary push button
Activates the engine brake
l
control mode
actual engine brake control
stalk position. At any time,
use this push button to
deactivate the engine brake.
Position A
AUTOmatic
l
position "A", the engine
brake acts together with the
service
brake pedal is depressed
(referred
blending").
Gradual application of up to
l
100% of braking power.
Position 1
Engine brake low.
l
50% of
l
applied.
Release
l
pedal for the engine brake to
take effect.
Position 2
Engine brake high.
l
100% of
l
applied.
Release
l
pedal for the engine brake to
take effect.
based on
mode. In
brake when the
as "brake
braking power
the accelerator
braking power
the accelerator
PA-1652 Operator's Manual H3-45 Coach
BRAKING PROGRAM
Set the hand lever in automatic position
l
(A) or manual position (1) or (2).
Press the ON/OFF momentary push
l
button on the end of the hand lever to
activate the Engine Brake.
When the brake program is engaged, the
gearbox changes to the gear providing optimum
auxiliary brake effect.
Disengage the brake program by pressing the
ON/OFF momentary push button again or by
depressing the accelerator pedal.
SYSTEM STATUS ZONE PICTOGRAMS
A pictogram appears in the DID system status
zone to confirm activation of the engine brake
and the currently selected mode.
Engine brake OFF
Engine brake activated,
position A selected
Engine
position 1 selected
Engine
position 2 selected
NOTE
The engine brake AUTO mode (A) will activate
whenever the cruise control is enabled.
NOTE
Refer to "VOLVO ENGINE BRAKE (VEB)" on
page 12 in Other
supplemental information regarding the Engine
Brake operation.
brake activated,
brake activated,
Features section for