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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 stabilize 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.
      Fig 1: Position For Measuring Front And Rear Wheel
      G05337344Courtesy of SUBARU OF AMERICA, INC.
    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 rotation 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.
      Fig 2: Position For Measuring Front And Rear Wheel
      G05337345Courtesy of SUBARU OF AMERICA, INC.
    2. When the brake dragging force is large.
      • Check the dragging of brake pad or brake shoe.

        Specifications: 

        BRAKING FORCE SPECIFICATION

          Braking force
        Rear wheel total More than 10% of load on front or rear wheels
        Difference between right and left wheels Less than 8% of load on front or rear wheels
        Grand total More than 50% of vehicle weight at the time of test
      • When measurement is difficult to carry out because both of front wheels are locked, brake force measurement in this condition conforms to standard grand total.
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