TIAGO

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BRAKES
5
6.4 DIAGNOSIS
SPONGY BRAKE PEDAL
BRAKE ROUGH OR CHATTERON APPLICATION
CAUSES REMEDY
1 Excessive lateral run out in disc or parallelism
Repair if possible or replace the disc not
within specification
2 Rear drum out of round
Check run out, repair or replace drum as
necessary
3 Broken anti-rattle clip Replace
4 Incorrect parking brake adjustment Check and adjust as per specifications
5 Seized caliper pistons Overhaul calipers
6 Damaged or loose wheel bearing Replace wheel bearing
7 Distorted steering knuckle or rear wheel spindle Replace knuckle or rear wheel spindle
EXCESSIVE BRAKE PEDAL EFFORT (HARD PEDAL)
. CAUSES REMEDY
1 Lining soiled with brake fluid, oil or grease Replace
2 Brake pad worn below Recommended thickness. Replace
3 Mal-functioning of Servo Identify the trouble in Servo and rectify
4 Partial system failure
Check both primary and secondary circuits
(in tandem master cylinder) and rectify
5 Piston in calipers stuck or sluggish Remove caliper and overhaul
6 Fading brake due to non recommended grade of
brake pads pads
Replace with approved grade of brake
7 Kinked, dented or clogged bundy pipes hoses Identify and Replace
8 Binding pedal linkage Lubricate and free up the system
9
Vacuum leakage through hose replace vacuum
hose
Check the hose connections if required
. CAUSES REMEDY
1 Air in hydraulic system Bleed the system and top up
2 Soft or weak hose Check and Replace
3 Poor quality brake fluid
Flush the system and refill with
recommended grade of brake fluid
4 Excessive worn / Weak drums in Rear Replace rear brake drums