Specifications

PART

2-1-General Brake Service

FIG.

I-Front Wheel Disc Brake Trouble Symptoms and Possible Causes

Trouble Symptoms

II),m

Possible Causes

Trouble

Shoe and Lining Knock-back after Violent Cornering or

Rough Road Travel

Shoe and Lining Assembly not Properly Seated or Positioned

Leak or Insufficient Fluid in System or Caliper

Loose Wheel Bearing Adjustment

Damaged or Worn Caliper Piston Seal

Improper Master Cylinder Push Rod Adjustment

Excessive Rotor

Runout or Out of Parallel

Incorrect Tire Pressure

Frozen or Seized Pistons

Brake Fluid, Oil or Grease on Linings

Shoe and Lining Worn Below Specifications

Proportioning Valve Malfunction

Booster Inoperative

Caliper Out of Alignment with Rotor

Loose Caliper Attachment

Metering Valve Seal Leaks

Excessive Clearance Between Shoe and Caliper or Between

Shoe and Splash Shield

Shoe Hold Down Clips Missing or Improperly Positioned

Operator Riding Brake Pedal

Scores in the Cylinder Bore

Corrosion Build-Up in the Cylinder Bore or on the Piston

Differential Pressure Valve Is Not Centered

Wiring To Warning Lamp or Switch Is Grounded

Warning Lamp Switch Is Grounded

Warning Lamp Is Burned Out

Warning Lamp or Switch Has An Open Circuit

Warning Lamp Switch Is Inoperative

Wiring To Warning Lamp Has Open Circuit