4-42 Controls and Instruments
PA-1652 Operator's Manual H3-45 Coach
FIGURE 28: ENGINE BRAKE CONTROL STALK
ON/OFF momentary push button
l
Activates the engine brake
control mode based on
actual engine brake control
stalk position. At any time,
use this push button to
deactivate the engine brake.
Position A
l
AUTOmatic mode. In
position "A", the engine
brake acts together with the
service brake when the
brake pedal is depressed
(referred as "brake
blending").
l
Gradual application of up to
100% of braking power.
Position 1
l
Engine brake low.
l
50% of braking power
applied.
l
Release the accelerator
pedal for the engine brake to
take effect.
Position 2
l
Engine brake high.
l
100% of braking power
applied.
l
Release the accelerator
pedal for the engine brake to
take effect.
BRAKING PROGRAM
l
Set the hand lever in automatic position
(A) or manual position (1) or (2).
l
Press the ON/OFF momentary push
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 brake activated,
position 1 selected
Engine brake activated,
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
page12 in Other Features section for
supplemental information regarding the Engine
Brake operation.
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