Volvo FM Handbook page 162

• the engine speed must be at least 1000 rpm, but
preferably as high as possible without entering the
tachometer red zone
• the cruise control must be disengaged
Brake program B
1 Stop in the last manual position (3 for stalk
switch with three manual positions and 1 for stalk
switch with one manual position)
2 Pull the lever to position B
3 B is shown on the display
4 Release the lever
When the brake program is connected the gearbox
changes to the gear which gives the auxiliary brake the
best effect.
Leave the brake program by positioning the lever in
some other position than position 3 or by depressing
the accelerator.
Cruise control with braking
When the engine cruise control is disengaged
1 Drive at the desired speed
2 Put the lever in position A
3 Depress the toggle switch on the lever
4 The speed is set and the accelerator can be
released
The truck brakes automatically when the set speed is
exceeded. Increase or decrease the set speed with the
toggle switch.
The truck can be braked manually with the lever in
positions 1-3, and returns to braking at the set speed
when the lever is moved to position A again.
Disengage the cruise control with braking by pressing
the accelerator or putting the lever in position 0.
When the engine cruise control is engaged
Put the lever in position A
Driving 151
(B)
11:45
AM
7,658.8 km
J5012647