Nissan Terrano r20e. Instruction — part 318
YFA007
FRONT AXLE
FA-13
Removal and Installation
I
Set the auto-lock free-running hub at the condition “Free”.
I
Remove
auto-lock
free-running
hub
with
brake
pedal
depressed.
I
Remove snap ring.
I
Remove washer B, washer A and brake B.
I
After installing auto-lock free-running hub, check operation.
When installing it, apply recommended grease to drive shaft
end.
Inspection
Thoroughly clean parts and dry with compressed air.
Brake “A” and “B”
Measure the thickness “L” of brake “A” and “B”.
If thickness is less than the specified limit, replace brake “A” and
“B” as a set.
Wear limit “L” = 15.4 mm (0.606 in)
YFA016
SFA827
SFA829
SFA548
FRONT AXLE — Auto-lock Free-running Hub
FA-14
Trouble-shooting
Noise occurring in the auto hub under any of the conditions
described is not indicative of a problem. Noise can be eliminated
by properly operating the transfer lever of the vehicle.
Noise
Was the transfer lever shifted from
the “2H” to the “4H” position while
the vehicle was operated at a
speed greater than 40 km/h (25
MPH)?
No
E
Yes
Shifting the transfer lever from the
“2H” to the “4H” position in high-
speed operation (Fig.
,
Fig.
), is sometimes difficult. At this
point, a clattering occurs in the
auto hub. If shifting is stopped
halfway, the drive shaft no longer
rotates and the cam is held in the
“LOCK” position (Fig.
). In this
case, the noise will continue until
the vehicle is stopped. When this
occurs, decrease vehicle speed to
less than 40 km/h (25 MPH),
return the transfer lever to the
“2H” position once and then
reshift to the “4H” position.
Gears will then be engaged and
the noise will cease (Fig.
).
Was the transfer lever shifted from
the “2H” to the “4H” position while
the vehicle was operated at a
speed less than 40 km/h (25
MPH)?
No
E
Yes
When noise occurs in the auto
hub while shifting from the “2H” to
the “4H” position (Fig.
,
Fig.
), do not stop shifting halfway.
When shifted to the “4H” position,
the “4WD” pilot lamp will come on
to indicate that the gears are
engaged properly and that the
vehicle is set in the 4WD mode.
Noise will then cease (Fig.
). If
shifting is stopped halfway, noise
will continue.
In such a case, return the transfer
lever to the “2H” position once
and re-shift it to the “4H” position.
Gears will then be engaged and
the noise will cease (Fig.
). (If
the lever is left in the “2H”
position, the noise will continue
until the vehicle is stopped.)
q
A
SFA516A
SFA517A
SFA518A
H
H
H
FRONT AXLE — Auto-lock Free-running Hub
FA-15
q
A
Was the vehicle started after the
transfer lever was shifted from the
“2H” to the “4H” or “4L” position?
No
E
Yes
A clicking noise can sometimes
occur in the auto hub when the
gears are engaged. This is not a
problem.
Noise can be encountered during
rapid acceleration while rear
wheels are slipping on snowy
roads, muddy roads, slopes, etc.
(Fig.
,
Fig.
).
In such a case, release the accel-
erator pedal to reduce engine
speed. Gears will then be
engaged and the noise will cease
(Fig.
).
Was the vehicle backed up when
the transfer lever was in the “4H”
or the “4L” position, or was the
vehicle backed up while on a
downgrade when the transfer
lever was in the “4H” or the “4L”
position?
No
E
Yes
When backing up the vehicle with
the transfer in the “4H” or the “4L”
position, auto-hub gears some-
times disengage but soon reen-
gage (Fig.
,
Fig.
,
Fig.
) with a clicking noise. This is
not a problem. Noise will also
occur if the vehicle is accelerated
rapidly while the gears are disen-
gaged. In such a case, release the
accelerator pedal once to
decrease engine speed. Gears will
then be engaged and the noise
will cease (Fig.
).
Was the vehicle turned on a dry
pavement, when the transfer lever
was in the “4H” or the “4L” posi-
tion?
No
E
Yes
Under these conditions, noise
occurs in tires (creaking) or in the
power train (rattling) — not in the
auto hub.
Avoid driving in the conditions
described above as it may lead to
tire wear.
q
B
SFA519A
SFA520A
SFA521A
SFA522A
SFA523A
H
H
H
H
FRONT AXLE — Auto-lock Free-running Hub
Trouble-shooting (Cont’d)
FA-16
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст