GENERAL Special Handling AWD Models
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Speedometer tests, brake tests and wheel balance measure-
ment for full-time AWD vehicles should be carried out accord-
ing to the following procedures.
SPEEDOMETER TEST
Refer to GROUP 54 Combination Meter.
BRAKE TEST
In order to stabilize the viscous coupling‘s dragging force,
the brake test should always be conducted after the speedom-
eter test.
FRONT WHEEL MEASUREMENTS
Place the front wheels on’ the brake tester.
2. Perform the brake test.
Caution
The rear wheels should remain on the ground.
3.
If the brake dragging force exceeds the specified
jack up the vehicle and each -to
check the rotation condition of each wheel.
NOTE
If the brake dragging force exceeds the specified
the cause may be the effect of the viscous
dragging force, so jack up the front and check
the rotation condition of the wheels in this state for no
effect by the viscous coupling‘s dragging force.
REAR WHEEL MEASUREMENTS
After placing the rear wheels on the brake tester, follow the
same procedures as for the front wheel measurements.
Brake force of AWD models with
If both front wheels are locked and rear wheel measurement
is difficult, the measurement in this condition can be consid-
ered to comprise the total.
Items
Brake force
Total for left and
At 90 kg (198 ped- 20 or more of rear
right rear wheels al depression force
axle weight
8% or less of rear 8% or less of r e a r
and right front axle weight
axle weight
wheels/differ-
ence for left and
right rear wheels
Total for front or more of the
and rear wheels al depression force
vehicle’s weight
or...
Braking-stop distance
At primary velocity of (31
mph): Within 15.0 (49.2 ft.)
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