Brake Caliper: Testing and Inspection

Inspection

Cylinder Slide Bush





Check slide bush for smooth movement as shown. If it is found faulty, correct or replace. Apply rubber grease to slide pin (bolt) outer surface. Rubber grease should be the one whose viscosity is less affected by such low temperature as -40°C (-40°F).

Bush Dust Boot and Cylinder Boot





Check boots for breakage, crack and damage. If defective, replace. Apply rubber grease to bush outer surface. Make sure that each bush slides easily through each caliper bolt hole.

NOTE: Where temperature gets as low as -30°C (-22°F) in cold weather, use rubber grease whose viscosity varies very little even at -40°C (-40°F).

Piston Seal





Excessive or uneven wear of pad lining may indicate unsmooth return of the piston. In such a case, replace rubber seal.