1987-Montero · Front susp a · страница 3 из 83 · Открыть оригинал PDF ↗
AUTOMATIC FREE-WHEELING HUB OPERATlq$m
he@ State + Locked State
When the transfer is shifted from 2WD to 4WD and driving is
begun, rotation of the drive shaft is transmitted from the drive
gear to the slide gear to the cam to retainer (A) to brake (A).
When this happens, brake (A) is pressed against brake (6) by
the function of the cam of retainer (A), and friction force is
generated.
Because brake (B) is secured to the knuckle. retainer (A)
ceases to rotate, and therefore, the cam, while compressing
the return spring, rises out of the cam groove of the retainer
(A) and compresses the shift spring. The slide gear is pushed
by the shift spring, and then engages with the gear of the
housing when the two are in phase and enters the locked *,- _.
state.
The cam turns until the lug of the drive gear contacts the lug of’
brake (A). Because of this contact, brake (A) is turned by the
drive gear, and therefore, there is also no longer any force of
retainer (A) with a tendency to turn brake (A). As a result, there
is also no longer any force which presses brake (A) against
brake (B) and the drive gear causes brake (A) to turn lightly. -
(there is no friction force).
Because the cam remains meshed, it turns until it contacts the
lug of retainer (A), and is locked.
wision
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