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308 Cab
Lamps and symbols
Bogie lamp
The tag axle raise lamp is lit when:
• The bogie axle is lifted
• Load distribution between the drive axle and bogie
axle is changed
The bogie lift lamp lights when the load distribution
between the drive axle and bogie axle is changed.
The bogie lift lamp flashes when:
• The drive axle load has increased by 30% on
vehicles which have a bogie button with a spring
loaded lower position.
Symbols for air suspension
Symbol
Axle load distribution 70%
Meaning
The control button is set
to manual control or
adjustment of ride height.
If the control button is in
the centre position the air
suspension is in locked
position.
With "optimise traction",
the axle load distribution
is shown in the display.
Truck not in drive
position.
Bogie lift lamp
Action
Select ride height
Note! Drive very carefully when the symbol is
displayed.
Check whether the air suspension is locked:
Turn the ignition key to the stop position (0)
and then back to the drive position (I).
If the symbol remains on the display the air
suspension is locked. See section "Air
suspension in locked position", page 628.
None. The message disappears when optimal
load distribution has been achieved.
Check that the control button is in the drive
position and wait until the truck reaches the
correct drive height.
Note! Drive very carefully when the symbol is
displayed.
A signal will sound if the speed is too high. If
a bellows is punctured, drive, at not more than
30 km/h, to a Volvo workshop, or contact
Volvo Action Service.
J3014468
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