Valtra T144 Operator's Manual page 68

T series
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3. Operation
Turn the seat.
Adjust the seat forwards or backwards.
Turn the longitudinal suspension on or off.
Adjust the suspension according to the operator weight.
Adjust the height of the seat.
The seat has a stepless height adjustment range of 80 mm (±40 mm from the
seat middle position).
When the seat is locked at a new height, you hear a faint click.
Adjust the stiffness of the seat suspension.
Release the lock by pulling the lock/release lever upwards.
Turn the seat to the desired position.
The seat can be turned between 190° anti-clockwise and 90° clockwise.
The seat can be locked to set positions at 10°, 20°, 80° and 90° when
turning clockwise and 10°, 20°, 180° and 190° when turning anti-
clockwise.
Pull the forward/backward adjustment lever upwards.
Move the seat forwards or backwards to the desired position.
To turn on the longitudinal suspension, turn the lever to the rear position.
To turn off the longitudinal suspension, turn the lever clockwise 180° to
the front position.
Pull the suspension adjustment lever until the compressor starts.
The compressor runs and the suspension adjusts automatically
according to the operator's weight.
If the operator is lighter than the previous operator, the compressor runs
momentarily, the excess pressure is released, and the seat lowers.
The suspension setting remains stored in the seat memory even if the
tractor is switched off.
The seat suspension travel is 100 mm (± 50 mm) regardless of the
starting height. The suspension area is limited to 100 mm for safety
reasons.
Lift the seat by pulling the height adjustment lever upwards until the
desired height is reached (the seat's own compressor runs continuously
but the main power must be switched on).
When the lever is released, the compressor stops and the seat stays at
that height. If you set the seat too high so that the room for upward
movement is less than 50 mm, the seat lowers automatically to the
highest permissible position.
Lower the seat by pressing the height adjustment lever downwards until
the desired height is reached.
If you set the seat too low so that the 50 mm downward suspension is not
possible, the seat automatically rises to the lowest limit the next time you
touch the lever.
If you sit very still on the seat during the adjustment, the seat may rise to
the previous height in the memory.
When the lever is at the back position, the suspension is at its firmest.
When the lever is at the front position, the suspension is at its softest.
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