Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Legacy 2000-2003 Approved Subaru Legacy 2000 2000 Service Manual MECHANICAL COMPONENTS SECTION BRAKES MSA5TCD00L17551
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>> Download MSA5TCD00L17551 documenatation <<Text preview - extract from the document DIAGNOSTICS [K100] 4-4
1. Entire Brake System
1. Entire Brake System
Trouble and possible cause Corrective action
1. Insufficient braking (1) Fluid leakage from the hydraulic mechanism Repair or replace (cup, piston seal, piston boot,
master cylinder piston kit, pipe or hose).
(2) Entry of air into the hydraulic mechanism Bleed the air.
(3) Excessively wide shoe clearance Adjust the clearance.
(4) Wear, deteriorated surface material, adhering Replace, grind or clean.
water or fluid on the lining
(5) Improper operation of master cylinder, disc Correct or replace.
caliper, brake booster or check valve
2. Unstable or uneven (1) Fluid on the lining, drum or rotor Eliminate cause of fluid leakage, clean, or
braking replace.
(2) Drum or rotor eccentricity Correct or replace the drum or rotor.
(3) Worn brake drum, or damage to the drum Correct by grinding, or replace.
caused by sand
(4) Improper lining contact, deteriorated surface Correct by grinding, or replace.
material, improper inferior material, or wear
(5) Deformed back plate Correct or replace.
(6) Improper tire inflation Inflate to correct pressure.
(7) Disordered wheel alignment Adjust alignment.
(8) Loosened back plate or the support installing Retighten.
bolts
(9) Loosened wheel bearing Retighten to normal tightening torque or replace.
(10) Trouble in the hydraulic system Replace the cylinder, brake pipe or hose.
(11) Uneven effect of the parking brake Check, adjust, or replace the rear brake and
cable system.
3. Excessive pedal (1) Entry of air into the hydraulic mechanism Bleed the air.
stroke (2) Excessive play in the master cylinder push Adjust.
rod
(3) Fluid leakage from the hydraulic mechanism Repair or replace (cup, piston seal, piston boot,
master cylinder piston kit, pipe or hose).
(4) Improperly adjusted shoe clearance Adjust.
(5) Improper lining contact or worn lining Correct or replace.
4. Brake dragging or (1) Insufficient pedal play Adjust play.
improper brake return (2) Improper master cylinder return Clean or replace the cylinder.
(3) Clogged hydraulic system Replace.
(4) Improper return or adjustment of parking Correct or adjust.
brake
(5) Weakened spring tension or breakage of shoe Replace the spring.
return spring
(6) Excessively narrow shoe clearance Adjust the clearance.
(7) Improper disc caliper operation Correct or replace.
(8) Improper adjusted wheel bearing Adjust or replace.
5. Brake noise (1) (1) Hardened or deteriorated lining Replace the shoe assembly or pad.
(creak sound) (2) Worn lining Replace the shoe assembly or pad.
(3) Loosened back plate or the support installing Retighten.
bolts
(4) Loose wheel bearing Retighten to normal tightening torque.
(5) Dirty drum or rotor Clean the drum or rotor, or clean and replace the
brake assembly.
6. Brake noise (2) (1) Worn lining Replace the shoe assembly or pad.
(hissing sound) (2) Improper installed shoe or pad Correct or replace the shoe assembly or pad.
(3) Loose or bent drum or rotor Retighten or replace.
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4-4 [K100] DIAGNOSTICS
1. Entire Brake System
Trouble and possible cause Corrective action
7. Brake noise (3) In the case of the disc brake:
(click sound) (1) Excessively worn pad or the support Replace the pad or the support.
In the case of the drum brake:
(1) Excessively worn shoe ridge Replace the back plate.
(2) Lack of oil on the shoe ridge surface and Add more grease.
anchor
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