Master Cylinder Inspection; Booster Operation Inspection - Suzuki SX4 Service Manual

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4A-14 Brake Control System and Diagnosis:
4) Connect brake pipe to master cylinder and tighten
flare nuts to specified torque.
Tightening torque
Brake pipe flare nut for M10 (a): 16 N·m (1.6 kgf-
m, 12.0 lb-ft)
Brake pipe flare nut for M12 (a): 19 N·m (1.9 kgf-
m, 14.0 lb-ft)
5) Connect clutch reservoir hose to reservoir and install
reservoir hose clamp (M/T model).
6) Connect fluid level switch connector and clamp.
7) Fill reservoir with specified brake fluid up to its MAX
level.
8) After completing the work, bleed air from brake and
clutch system referring to "Air Bleeding of Brake
System" and bleed air from clutch system referring to
"Air Bleeding of Clutch System in Section 5C" (M/T
model).
9) Check each installed parts for fluid leakage.
10) Check brake pedal for play referring to "Brake Pedal
Play Inspection".
11) Perform brake test and check fluid leakage.

Master Cylinder Inspection

• Depress brake pedal a few times and retain brake
• Check master cylinder for brake fluid leakage,
• Inspect distance "a" to be the following.
(a)
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Booster Operation Inspection

There are two ways to perform this inspection, with and
without a tester. Ordinarily, it is possible to roughly
determine its condition without using a tester.
Check Air Tightness
pedal. If pedal gone down, replace the brake master
cylinder assembly.
corrosion and smooth operation.
If measurement is out of specification, replace master
cylinder assembly.
Distance
"a": 72.0 mm (2.83 in.) or more
NOTE
For this check, make sure that no air is in
hydraulic line.
1) Start engine.
2) Stop engine after running for 1 – 2 minutes.
3) Depress brake pedal several times with the same
load as in ordinary braking and observe pedal travel.
If pedal goes down deep the first time but its travel
decreases as it is depressed the second and more
times, air tightness is obtained.
1. 1st
2. 2nd
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I2RH01410005-01
3. 3rd

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