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Valtra T144 - Exposure to Vibration; Hydraulic System; Low-Pressure Circuit; Steering Hydraulic Circuit

Valtra T144
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6.13.5 Exposure to vibration
The level of exposure to vibration and shock is dependent on several issues,
such as work tasks, tyre types, work conditions and implements. Always plan
your work so that the exposure is minimised. In extreme conditions, keep warm
and dry and try to take short breaks.
The vibration measurements are based on Directive 78/764/EEC.
Seat
Vibration (m/s
2
)
Light operator (59±1 kg) Heavy operator (98±5 kg)
Mechanical suspension 0.87 0.85
Air-suspended 1.16 1.03
6.14 Hydraulic system
6.14.1 Low-pressure circuit
Pump capacity (at engine speed 2 200 rpm) 55 liters/min
Maximum pressure
2.1 MPa (21 bar)
1)
Oil supply for the following functions: Powershift
Speed ranges' changing
Four-wheel drive, disengaging
Transmission and PTO lubrication
Power take-off (PTO)
Ground speed PTO (optional)
Creeper
Differential lock
Power shuttle
Parking brake
Brake system
Trailer brake valve (optional)
1)
150 bar when using trailer brake
6.14.2 Steering hydraulic circuit
Pump capacity
73 l/min at engine speed 2 200 rpm
90 l/min at engine speed 2 200 rpm (optional)
Oil supply for the following functions: Steering
Transmission lubrication
6.14.3 Working hydraulic circuit
Pump
Fixed-displacement pump
Pump capacity Optional:
73 l/min at engine speed 2 200 rpm
90 l/min at engine speed 2 200 rpm
Maximum pressure at 1 500 rpm
20.5 MPa (205 bar)
Table continued on next page
6. Technical specifications
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