Volvo FM Handbook page 317

306 Cab
Axle button
To specify which axle is to be adjusted or which
memory is to be used:
• M1, front axle or memory 1.
• M2, front and rear axle or memory 2.
• M3, rear axle or memory 3.
Control buttons
To raise or lower the truck.
To avoid having to hold in the control button, for
example when raising or lowering the truck to it's
highest or lowest height, activate the hold function.
Press one of the control buttons and at the same time
press the memory button. To cancel the hold function,
press the memory button again, one of the control
buttons, or STOP.
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J7009819