English-56
DESIGN AND FUNCTION
Four-wheel drive diff lock
The differential lock works longitudinally by means of the front and rear wheels getting separate circuits.
When the differential lock is activated, the valve (3) closes. The oil is forced through the flow distributor (f).
The flow is distributed to the front wheel pairs and the rear wheel pairs as the flow distributor has different
chokes for the front and rear wheel circuits.
The hydraulic oil then flows through the wheel motors and on to the hydraulic pump for the drive system’s
suction side, as described in 4WD parallel driving.
8043-232
Circuit diagram Four-wheel drive with diff lock
F=Front axle
R=Rear axle
F=Flow distributor
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