BRAKES
M6040, M7040, WSM
5-S1
1. TROUBLESHOOTING
9Y1210143BRS0001US0
Symptom Probable Cause Solution
Reference
Page
Poor Braking Force Brake pedal free travel excessive Adjust 5-S4
Brake disc worn Replace 5-S14,
5-S16
Brake piston warped Replace 5-S13,
5-S16
Brake oil leakage from brake pipes, bleeder,
master cylinder or equalizer
Repair or replace –
Master cylinder or equalizer malfunctioning Repair or replace 5-S12
Uneven Braking
Force
Brake pedal free travel unevenly adjusted Adjust 5-S4
Brake disc worn Replace 5-S14,
5-S16
Brake piston warped Replace 5-S13,
5-S16
Brake oil leakage from brake pipes, bleeder,
master cylinder or equalizer
Repair or replace –
Master cylinder or equalizer malfunctioning Repair or replace 5-S12
Brake Drags Brake pedal free travel too small Adjust 5-S4
Master cylinder return spring weaken or broken Replace 5-S12
Master cylinder malfunctioning Repair or replace 5-S12
Brake seal failure Replace 5-S13
Brake lines clogged Clean –
Brake pedal return spring weaken or broken Replace –
Spongy Brake Pedal Air in brake system Bleed air 5-S6
Brake Oil Consumed
Excessively
Brake seal failure Replace 5-S13
Brake oil leakage in brake lines Repair or replace –
Poor Parking Brake
Force
Parking brake lever free play excessive Adjust 5-S7
Parking Brake Drags Parking brake lever free play too small Adjust 5-S7
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