Mazda MX-6 1998, Workshop Manual, Page: 650 / 1282

CONVENTIONAL BRAKE SYSTEM
15
Stop pin (with ABS)
irr Assembly Note
16 O-ring
i n r
Assembly Note
17 Secondary piston
18
Master cylinder body
Stop Screw and O-ring (without ABS) Assembly
Note
1. Install the new O-ring onto the stop screw.
2. Push the primary piston assembly in full.
3. Install and tighten the stop screw.
Tightening torque
6.9— 9.8 N-m
{70— 100 kgf-cm, 60.8— 86.8 in lbf}
Stop Pin and O-ring (with ABS) Assembly Note
1. Install the secondary piston with the piston hole
facing the stop pin.
2. Install the new O-ring onto the stop pin.
3. Install the stop pin.
Tightening torque
6.9— 9.8 N-m
{70— 100 kgf-cm, 60.8— 86.8 in-lbf}
4. Push and release the secondary piston assembly
to verify that it is held by the stop pin.
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POWER BRAKE UNIT INSPECTION
Power Brake Unit Function Check (Simple
Method)
Note
• Replace power brake unit assembly as
necessary.
Step 1
1. With the engine stopped, depress the pedal
several times.
2.
With the pedal depressed, start the engine.
3. If th e p e d a l m o ve s d o w n slightly, im m e d ia te ly a fte r
th e e n g in e sta rts , th e u n it is o p e ra tin g .
Step 2
1 . Start the engine.
2. Stop the engine after idling for 1 or 2 minutes.
3. Depress the pedal with the usual force.
4. If the first pedal stroke is long and becomes
shorter with subsequent strokes, the unit is
operating.
Note
• If a problem is found, inspect for damages on
the check valve or vacuum hose, and examine
the installation. Repair as necessary, and
inspect it again.
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Step 3
1. S ta rt th e e n gine.
2. Depress the pedal with the usual force.
3. Stop the engine with the pedal held depressed.
4. Hold the pedal down for about 30 seconds.
5. If the pedal height does not change, the unit is
operating.
Power Brake Unit Function Check (Inspection
Using the Testers)
1. Connect the SSTs, vacuum gauge, and pedal
d e p re s s io n fo rc e g a u g e as s h o w n in th e fig u re .
Note
• Use commercially available gauges and pedal
depression force gauge.
• Bleed the air from the SST at gauge A.
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