Subaru Legacy 2004 Service Manual page 70

14.BRAKE TEST
1) Full-time AWD MT model
(1) Perform this test after driving the vehicle 2 to
3 km (1.24 to 1.86 miles) on road in order to sta-
bilize the viscous torque of viscous coupling.
(2) Keep the front or rear wheels on the ground
for this test.
NOTE:
Effect of the viscous torque on braking force will be
added approx. 25 kg compared with FWD model.
(C)
(A) Brake tester
(B) Position for measuring front wheel
(C) Position for measuring rear wheel
(3) When the brake dragging force is large.
• Check the dragging of brake pad or brake
shoe.
• Since it may be affected by the viscosity of
viscous couping, jack up either of the front or
rear two wheels to check the each wheel rota-
tion condition with the viscous coupling affection
removed.
2) Full-time AWD AT model
(1) Keep the front or rear wheels on the ground
during measurement.
(C)
(A) Brake tester
(B) Position for measuring front wheel
(C) Position for measuring rear wheel
(2) When the brake dragging force is large.
• Check the dragging of brake pad or brake
shoe.
(A)
(B)
NT-00029
(A)
(B)
NT-00029
Note
Specifications:
Rear wheel total
Difference between
right and left
wheels
Grand total
• When measurement is difficult to carry out be-
cause both of front wheels are locked, check if
break force measurement in this condition con-
forms to grand total.
15.ON THE CAR WHEEL BALANCING
CAUTION:
• Carry out this procedures after measuring
the balance of each single tire.
• Set the vehicle so that the front and rear
wheels are same height.
• Release the parking brake during measure-
ment.
• Rotate each wheel by hands, and make sure it
rotates without dragging.
• Do not operate the clutch quickly and do not
accelerate or decelerate suddenly during work.
• When an error is indicated during engine
drive, do not use the motor drive together.
1) Set the rigid rack to the specified locations of
side sill, jack up the front or rear two wheels of non-
measuring side and set the pickup stands to two
wheels of measuring side.
(B)
(A) Balancer body
(B) Pickup stand
2) For drive wheel, drive the tires with engine for
measurement.
3) For non-drive wheel, drive the tires from the on
the car wheel balancer for measurement.
NT-11
Braking force
More than 10% of load on front or rear
wheels
Less than 8% of load on front or rear
wheels
More than 50% of vehicle weight at
the time of test
(A)
NT-00031
NOTE