Mazda MX-6 1998, Workshop Manual

Page: 651 / 1282

CONVENTIONAL BRAKE SYSTEM
7. Observe the vacuum gauge for 15 seconds. If the
gauge shows 66.3—66.7 kPa {475— 500 mmHg,
18.7— 19.7 inHg}, the unit is operating.
Checking for hydraulic pressure
1 . When the engine is stopped (vacuum 0 kPa {0
mmHg, 0 inHg}) and the fluid pressure is within
the specification, the unit is operating.
Pedal force Fluid pressure
196 N {20 kgf, 44 Ibf)
880 kPa
{9 kgf/cm2, 130 psi) min
2. After bleeding the air from the SST, conduct the
test as described in the following steps.
Checking for vacuum loss
1. Start the engine.
2. Stop the engine when the vacuum gauge reading
reaches 66.7 kPa {500 mmHg, 19.7 inHg}.
3. Observe the vacuum gauge for 15 seconds. If the
gauge shows 63.3—66.7 kPa {475— 500 mmHg,
18.7— 19.7 inHg}, the unit is operating.
4. Start the engine.
5. Depress the brake pedal with a force of 196 N {20
kgf, 44 Ibf}.
6. With the brake pedal depressed, stop the engine
when the vacuum gauge reading reaches 66.7
kPa {500 mmHg, 19.7 inHg}.
2. Start the engine. Depress the brake pedal when
the vacuum reaches 66.7 kPa {500 mmHg, 19.7
inHg}. If the fluid pressure is within the
specification, the unit is operating.
Pedal force Fluid pressure
196 N {20 kgf, 44 ibf}
8,830 kPa
{90 kgf/cm2, 1,280 psi} min
POWER BRAKE UNIT REMOVAL/INSTALLATION
1. Remove the master cylinder. (R eferto MASTER
CYLINDER REMOVAL/INSTALLATION.)
2. Remove in the order indicated in the table.
3. Install in the reverse order of removal.
W 6 U 4 1 1 W 0 9
1 Vacuum hose
2 Snap pin
3 Clevis pin
4 Nut
5
Power brake unit
6 Gasket
7 Fork
8 Nut
PEDAL
DEPRESSION
FORCE
GAUGE
VACUUM GAUGE
W 6 U 4 1 1 W A R
W 6 U 4 1 1 W A S
0 4 -1 1 -1 0