Hyundai Santa Fe (2006 year). Manual — part 210
BR -12
BRAKE SYSTEM
BRAKE BOOSTER OPERATING
TEST
EAC92E97
For simple checking of the brake booster operation, carry
out the following tests
1.
Run the engine for one or two minutes, and then stop
it. If the pedal depresses fully the first time but grad-
ually becomes higher when depressed succeeding
times, the booster is operating properly, if the pedal
height remains unchanged, thebooster is inoperative.
Good
No good
1st
2nd
3rd
EJRF500B
2.
With the engine stopped, step on the brake pedal sev-
eral times.
Then step on the brake pedal and start the engine. If
the pedal moves downward slightly, the booster is in
good condition. If there is no change, the booster is
inoperative.
When engine is stopped
When engine is started
SCMBR6500L
3.
With the engine running, step on the brake pedal and
then stop the engine.
Hold the pedal depressed for 30 seconds. If the pedal
height does not change, the booster is in good condi-
tion, if the pedal rises, the booster is inoperative.
If the above three tests are okay, the booster perfor-
mance can be determined as good.
Even if one of the above three tests is not okay, check
the check valve, vacuum hose and booster for mal-
function.
Good
No good
EJRF500C
BRAKE SYSTEM
BR -13
REMOVAL
EAB2C2A3
1.
Remove the air cleaner assembly. (LHD only)
SCMBR6502D
2.
Disconnect the vacuum hose (A), vacuum switch con-
nector (B) from the brake booster.
3.
Disconnect the brake fluid level switch connector (C)
from the reservoir.
[LHD]
A
C
B
SCMBR6003D
[RHD]
C
A
SCMBR6001L
4.
Remove the master cylinder. (Refer to Master cylin-
der)
5.
Remove the snap pin (A) and joint pin (B).
A
B
SCMBR6004D
BR -14
BRAKE SYSTEM
6.
Remove the brake booster by loosening the mounting
nuts.
Tightening torque Nm (kgf.m, lb-ft):
13 ~ 16 (1.3 ~ 1.6, 9.4 ~ 11.6)
SCMBR6518L
INSPECTION
E56ACBAF
1.
Inspect the check valve in the vacuum hose.
CAUTION
Do not remove the check valve from the vacuum
hose.
2.
Check the boot for damage.
INSTALLATION
E5250350
1.
Installation is the reverse of removal.
CAUTION
•
Before installing the pin, apply the grease to
the joint pin.
•
Use a new snap pin whenever installing.
2.
After installing, bleed the brake system.
(Refer to
Brake system bleeding)
3.
Adjust the brake pedal height and free play. (Refer to
Brake pedal height and free play adjustment)
BRAKE SYSTEM
BR -15
MASTER CYLINDER
COMPONENTS
E599266A
1. Reservoir cap
2. Reservoir
3. Grommet
4. Cylinder pin
5. Retainer
6. Primary piston assembly
7. Secondary piston assembly
8. Master cylinder body
8
1
2
3
4
7
6
5
SCMBR6514L
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