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A . General description
The tractors may be equipped or not according to the
engine front axle model. The front axles mounted on
the 4WD tractors consist of:
- a centre housing containing the differential unit and
the differential lock system, as well as the transmis-
sion shafts,
- at each end, a hub assembly containing the epicyclic
final drive units.
The front axle is assembled to the front frame of the
tractor by means of a pivot which adapts to the uneve-
ness of the ground. Drive from the rear axle is trans-
mitted to the front axle through a fixed transmission
shaft in case of DANA front axles or via a universal
drive shaft for CARRARO front axles. Engagement is
ensured by an electrohydraulically controlled multidisc
clutch.
The differential unit is held by two half-bearings
mounted on a suitable support which allows to adjust
the bevel gear.
The bevel gear is supported by two bearings, and is
adjusted using shims.
The wheel hubs containing the epicyclic drive units are
held in place by two taper roller bearings and driven a
hydraulically controlled steering unit.
Massey Ferguson 5400 - Issue 1.a
General
08A01.3
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